Extracting prog: 1m15.92148437s Minimizing prog: 25m49.87220981s Simplifying prog options: 0s Extracting C: 56.421945677s Simplifying C: 5m57.861894883s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r7], 0x6c}}, 0x20000000) program crashed: possible deadlock in elevator_change single: successfully extracted reproducer found reproducer with 9 syscalls minimizing guilty program testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)) program did not crash testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32], 0x6c}}, 0x20000000) program crashed: lost connection to test machine ignore low priority crash: lost connection to test machine testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c00018008000100", @ANYRES32=r6], 0x6c}}, 0x20000000) program did not crash testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r5, @ANYBLOB="0c00018008000100", @ANYRES32=r5, @ANYBLOB="0c00018008000100", @ANYRES32=r5, @ANYBLOB="0c00018008000100", @ANYRES32=r6], 0x6c}}, 0x20000000) program did not crash testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(0xffffffffffffffff, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r5, @ANYBLOB="0c00018008000100", @ANYRES32=r5, @ANYBLOB="0c00018008000100", @ANYRES32=r5, @ANYBLOB="0c00018008000100", @ANYRES32=r6], 0x6c}}, 0x20000000) program crashed: lost connection to test machine ignore low priority crash: lost connection to test machine testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r3, @ANYBLOB="0c00018008000100", @ANYRES32=r3, @ANYBLOB="0c00018008000100", @ANYRES32=r3, @ANYBLOB="0c00018008000100", @ANYRES32=r4], 0x6c}}, 0x20000000) program did not crash testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r4, @ANYBLOB="0c00018008000100", @ANYRES32=r4, @ANYBLOB="0c00018008000100", @ANYRES32=r4, @ANYBLOB="0c00018008000100", @ANYRES32=r5], 0x6c}}, 0x20000000) program crashed: lost connection to test machine ignore low priority crash: lost connection to test machine testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r1, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r2, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r5, @ANYBLOB="0c00018008000100", @ANYRES32=r5, @ANYBLOB="0c00018008000100", @ANYRES32=r5, @ANYBLOB="0c00018008000100", @ANYRES32=r6], 0x6c}}, 0x20000000) program crashed: lost connection to test machine ignore low priority crash: lost connection to test machine testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(0xffffffffffffffff, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r0, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r1, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r2, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r3 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r4 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r3, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r4, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r5, @ANYBLOB="0c00018008000100", @ANYRES32=r5, @ANYBLOB="0c00018008000100", @ANYRES32=r5, @ANYBLOB="0c00018008000100", @ANYRES32=r6], 0x6c}}, 0x20000000) program crashed: lost connection to test machine ignore low priority crash: lost connection to test machine testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(0x0, r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r7], 0x6c}}, 0x20000000) program did not crash testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r2 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r3 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r2, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r3, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r4, @ANYBLOB="0c00018008000100", @ANYRES32=r4, @ANYBLOB="0c00018008000100", @ANYRES32=r4, @ANYBLOB="0c00018008000100", @ANYRES32=r5], 0x6c}}, 0x20000000) program did not crash testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)) sendmsg$NBD_CMD_RECONFIGURE(r0, 0x0, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r3, @ANYBLOB="0c00018008000100", @ANYRES32=r3, @ANYBLOB="0c00018008000100", @ANYRES32=r3, @ANYBLOB="0c00018008000100", @ANYRES32=r4], 0x6c}}, 0x20000000) program did not crash testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x40}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r3, @ANYBLOB="0c00018008000100", @ANYRES32=r3, @ANYBLOB="0c00018008000100", @ANYRES32=r3, @ANYBLOB="0c00018008000100", @ANYRES32=r4], 0x6c}}, 0x20000000) program did not crash testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={0x0, 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r3, @ANYBLOB="0c00018008000100", @ANYRES32=r3, @ANYBLOB="0c00018008000100", @ANYRES32=r3, @ANYBLOB="0c00018008000100", @ANYRES32=r4], 0x6c}}, 0x20000000) program crashed: lost connection to test machine ignore low priority crash: lost connection to test machine testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r1 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r2 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r1, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r2, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r3, @ANYBLOB="0c00018008000100", @ANYRES32=r3, @ANYBLOB="0c00018008000100", @ANYRES32=r3, @ANYBLOB="0c00018008000100", @ANYRES32=r4], 0x6c}}, 0x20000000) program did not crash testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB, @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r7], 0x6c}}, 0x20000000) program did not crash testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB, @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r7], 0x6c}}, 0x20000000) program did not crash testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(0x0, 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r7], 0x6c}}, 0x20000000) program did not crash testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, 0x0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c00018008000100", @ANYRES32, @ANYBLOB="0c00018008000100", @ANYRES32=r6], 0x6c}}, 0x20000000) program did not crash testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, 0x0) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32], 0x6c}}, 0x20000000) program did not crash testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)) sendmsg$NBD_CMD_CONNECT(r4, 0x0, 0x20000000) program did not crash testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, 0x0}, 0x20000000) program did not crash testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={0x0, 0x6c}}, 0x20000000) program crashed: lost connection to test machine ignore low priority crash: lost connection to test machine testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[], 0x6c}}, 0x20000000) program did not crash testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB, @ANYRES32=r7], 0x6c}}, 0x20000000) program did not crash testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB, @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r7], 0x6c}}, 0x20000000) program did not crash testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r6, @ANYBLOB, @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r7], 0x6c}}, 0x20000000) program crashed: lost connection to test machine ignore low priority crash: lost connection to test machine testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r5, @ANYBLOB, @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r7], 0x6c}}, 0x20000000) program did not crash testing program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB, @ANYRES16=r5, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r7], 0x6c}}, 0x20000000) program crashed: lost connection to test machine ignore low priority crash: lost connection to test machine extracting C reproducer testing compiled C program (duration=36.455557834s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT program crashed: possible deadlock in elevator_change simplifying C reproducer testing compiled C program (duration=36.455557834s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT program crashed: possible deadlock in elevator_change testing compiled C program (duration=36.455557834s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT program did not crash testing compiled C program (duration=36.455557834s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT program crashed: possible deadlock in elevator_change testing compiled C program (duration=36.455557834s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT program crashed: possible deadlock in elevator_change testing compiled C program (duration=36.455557834s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT program crashed: possible deadlock in elevator_change testing compiled C program (duration=36.455557834s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT program crashed: possible deadlock in elevator_change testing compiled C program (duration=36.455557834s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT program crashed: possible deadlock in elevator_change testing compiled C program (duration=36.455557834s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT program crashed: possible deadlock in elevator_change testing program (duration=36.455557834s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r7], 0x6c}}, 0x20000000) program crashed: lost connection to test machine ignore low priority crash: lost connection to test machine validation run: crashed=false testing program (duration=36.455557834s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r7], 0x6c}}, 0x20000000) program crashed: lost connection to test machine ignore low priority crash: lost connection to test machine validation run: crashed=false testing program (duration=36.455557834s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r7], 0x6c}}, 0x20000000) program did not crash validation run: crashed=false testing program (duration=36.455557834s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r7], 0x6c}}, 0x20000000) program crashed: possible deadlock in elevator_change validation run: crashed=true testing program (duration=36.455557834s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r7], 0x6c}}, 0x20000000) program crashed: possible deadlock in elevator_change validation run: crashed=true testing program (duration=36.455557834s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-sendmsg$NBD_CMD_RECONFIGURE-syz_init_net_socket$nl_generic-syz_genetlink_get_family_id$nbd-socketpair$nbd-socketpair$nbd-sendmsg$NBD_CMD_CONNECT detailed listing: executing program 0: r0 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r1 = syz_genetlink_get_family_id$nbd(&(0x7f0000000140), r0) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff, 0xffffffffffffffff}) sendmsg$NBD_CMD_RECONFIGURE(r0, &(0x7f0000000a40)={0x0, 0x0, &(0x7f0000000a00)={&(0x7f0000000280)=ANY=[@ANYBLOB='`\x00\x00\x00', @ANYRES16=r1, @ANYBLOB="01002cbd7000ffdbdf2503000000080001000000000004000780400007800c00018008000100", @ANYRES32=r2, @ANYBLOB, @ANYRES32, @ANYBLOB, @ANYRES32, @ANYRESOCT, @ANYBLOB, @ANYRES8=r3, @ANYBLOB], 0x60}, 0x1, 0x0, 0x0, 0x40}, 0x0) r4 = syz_init_net_socket$nl_generic(0x10, 0x3, 0x10) r5 = syz_genetlink_get_family_id$nbd(&(0x7f0000000000), 0xffffffffffffffff) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000100)={0xffffffffffffffff}) socketpair$nbd(0x1, 0x1, 0x0, &(0x7f0000000080)={0xffffffffffffffff}) sendmsg$NBD_CMD_CONNECT(r4, &(0x7f0000001ac0)={0x0, 0x0, &(0x7f0000001a80)={&(0x7f0000000140)=ANY=[@ANYBLOB='l\x00\x00\x00', @ANYRES16=r5, @ANYBLOB="0100ffffffff00000000010000000c0005006c017fff000000000c000200ff7f000000000000400007800c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r6, @ANYBLOB="0c00018008000100", @ANYRES32=r7], 0x6c}}, 0x20000000) program crashed: possible deadlock in elevator_change validation run: crashed=true reproducing took 39m20.062336875s repro crashed as (corrupted=false): ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.0.18/5930 is trying to acquire lock: ffff888029893418 (&q->elevator_lock){+.+.}-{4:4}, at: elevator_change+0x1bc/0x530 block/elevator.c:679 but task is already holding lock: ffff888029892ef0 (&q->q_usage_counter(io)#50){++++}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:206 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #6 (&q->q_usage_counter(io)#50){++++}-{0:0}: blk_alloc_queue+0x610/0x790 block/blk-core.c:461 blk_mq_alloc_queue+0x174/0x290 block/blk-mq.c:4453 __blk_mq_alloc_disk+0x29/0x120 block/blk-mq.c:4500 nbd_dev_add+0x492/0xb10 drivers/block/nbd.c:1954 nbd_init+0x291/0x2b0 drivers/block/nbd.c:2692 do_one_initcall+0x121/0x750 init/main.c:1392 do_initcall_level init/main.c:1454 [inline] do_initcalls init/main.c:1470 [inline] do_basic_setup init/main.c:1490 [inline] kernel_init_freeable+0x6ea/0x7b0 init/main.c:1703 kernel_init+0x1f/0x1e0 init/main.c:1593 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #5 (fs_reclaim){+.+.}-{0:0}: __fs_reclaim_acquire mm/page_alloc.c:4320 [inline] fs_reclaim_acquire+0xc4/0x100 mm/page_alloc.c:4334 might_alloc include/linux/sched/mm.h:317 [inline] slab_pre_alloc_hook mm/slub.c:4521 [inline] slab_alloc_node mm/slub.c:4876 [inline] __kmalloc_cache_node_noprof+0x4f/0x770 mm/slub.c:5428 kmalloc_node_noprof include/linux/slab.h:1077 [inline] alloc_worker kernel/workqueue.c:2698 [inline] create_worker+0x110/0x750 kernel/workqueue.c:2841 workqueue_prepare_cpu+0xb5/0x160 kernel/workqueue.c:6826 cpuhp_invoke_callback+0x3ab/0x9a0 kernel/cpu.c:194 __cpuhp_invoke_callback_range+0x158/0x1d0 kernel/cpu.c:972 cpuhp_invoke_callback_range kernel/cpu.c:996 [inline] cpuhp_up_callbacks kernel/cpu.c:1027 [inline] _cpu_up+0x3f6/0x960 kernel/cpu.c:1674 cpu_up+0x1ba/0x230 kernel/cpu.c:1706 cpuhp_bringup_mask+0xf8/0x180 kernel/cpu.c:1772 cpuhp_bringup_cpus_parallel kernel/cpu.c:1850 [inline] bringup_nonboot_cpus+0xd9/0x1b0 kernel/cpu.c:1876 smp_init+0x32/0x150 kernel/smp.c:1014 kernel_init_freeable+0x44b/0x7b0 init/main.c:1695 kernel_init+0x1f/0x1e0 init/main.c:1593 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #4 (cpu_hotplug_lock){++++}-{0:0}: percpu_down_read_internal include/linux/percpu-rwsem.h:53 [inline] percpu_down_read include/linux/percpu-rwsem.h:77 [inline] cpus_read_lock+0x42/0x170 kernel/cpu.c:490 static_key_slow_inc+0x12/0x30 kernel/jump_label.c:190 nbd_reconnect_socket drivers/block/nbd.c:1342 [inline] nbd_genl_reconfigure+0xd82/0x1a00 drivers/block/nbd.c:2431 genl_family_rcv_msg_doit+0x214/0x300 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x560/0x800 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x159/0x420 net/netlink/af_netlink.c:2555 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x585/0x850 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1899 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] ____sys_sendmsg+0x9e1/0xb70 net/socket.c:2699 ___sys_sendmsg+0x190/0x1e0 net/socket.c:2753 __sys_sendmsg+0x170/0x220 net/socket.c:2785 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #3 (&nsock->tx_lock){+.+.}-{4:4}: __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1b10 kernel/locking/mutex.c:820 nbd_handle_cmd drivers/block/nbd.c:1143 [inline] nbd_queue_rq+0x428/0x1080 drivers/block/nbd.c:1207 blk_mq_dispatch_rq_list+0x422/0x1e70 block/blk-mq.c:2148 __blk_mq_do_dispatch_sched block/blk-mq-sched.c:168 [inline] blk_mq_do_dispatch_sched block/blk-mq-sched.c:182 [inline] __blk_mq_sched_dispatch_requests+0xcea/0x1620 block/blk-mq-sched.c:307 blk_mq_sched_dispatch_requests+0xd7/0x1c0 block/blk-mq-sched.c:329 blk_mq_run_hw_queue+0x23c/0x670 block/blk-mq.c:2386 blk_mq_dispatch_list+0x51d/0x1360 block/blk-mq.c:2949 blk_mq_flush_plug_list block/blk-mq.c:2997 [inline] blk_mq_flush_plug_list+0x130/0x600 block/blk-mq.c:2969 __blk_flush_plug+0x2c4/0x4b0 block/blk-core.c:1230 blk_finish_plug block/blk-core.c:1257 [inline] __submit_bio+0x584/0x6c0 block/blk-core.c:649 __submit_bio_noacct_mq block/blk-core.c:722 [inline] submit_bio_noacct_nocheck+0x543/0xbf0 block/blk-core.c:753 submit_bio_noacct+0xd18/0x2000 block/blk-core.c:884 blk_crypto_submit_bio include/linux/blk-crypto.h:203 [inline] submit_bh_wbc+0x681/0x890 fs/buffer.c:2737 submit_bh fs/buffer.c:2742 [inline] block_read_full_folio+0x264/0x8e0 fs/buffer.c:2344 filemap_read_folio+0xfc/0x3b0 mm/filemap.c:2502 do_read_cache_folio+0x2d7/0x6b0 mm/filemap.c:4107 read_mapping_folio include/linux/pagemap.h:1017 [inline] read_part_sector+0xd1/0x370 block/partitions/core.c:724 adfspart_check_ICS+0x91/0x7d0 block/partitions/acorn.c:356 check_partition block/partitions/core.c:143 [inline] blk_add_partitions block/partitions/core.c:591 [inline] bdev_disk_changed+0x7a3/0x1250 block/partitions/core.c:695 blkdev_get_whole+0x187/0x290 block/bdev.c:756 bdev_open+0x2c7/0xe40 block/bdev.c:965 blkdev_open+0x34e/0x4f0 block/fops.c:697 do_dentry_open+0x6ab/0x14d0 fs/open.c:947 vfs_open+0x82/0x3f0 fs/open.c:1079 do_open fs/namei.c:4699 [inline] path_openat+0x208c/0x31a0 fs/namei.c:4858 do_file_open+0x20e/0x430 fs/namei.c:4887 do_sys_openat2+0x10d/0x1e0 fs/open.c:1364 do_sys_open fs/open.c:1370 [inline] __do_sys_openat fs/open.c:1386 [inline] __se_sys_openat fs/open.c:1381 [inline] __x64_sys_openat+0x12d/0x210 fs/open.c:1381 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (&cmd->lock){+.+.}-{4:4}: __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1b10 kernel/locking/mutex.c:820 nbd_queue_rq+0xba/0x1080 drivers/block/nbd.c:1199 blk_mq_dispatch_rq_list+0x422/0x1e70 block/blk-mq.c:2148 __blk_mq_do_dispatch_sched block/blk-mq-sched.c:168 [inline] blk_mq_do_dispatch_sched block/blk-mq-sched.c:182 [inline] __blk_mq_sched_dispatch_requests+0xcea/0x1620 block/blk-mq-sched.c:307 blk_mq_sched_dispatch_requests+0xd7/0x1c0 block/blk-mq-sched.c:329 blk_mq_run_hw_queue+0x23c/0x670 block/blk-mq.c:2386 blk_mq_dispatch_list+0x51d/0x1360 block/blk-mq.c:2949 blk_mq_flush_plug_list block/blk-mq.c:2997 [inline] blk_mq_flush_plug_list+0x130/0x600 block/blk-mq.c:2969 __blk_flush_plug+0x2c4/0x4b0 block/blk-core.c:1230 blk_finish_plug block/blk-core.c:1257 [inline] __submit_bio+0x584/0x6c0 block/blk-core.c:649 __submit_bio_noacct_mq block/blk-core.c:722 [inline] submit_bio_noacct_nocheck+0x543/0xbf0 block/blk-core.c:753 submit_bio_noacct+0xd18/0x2000 block/blk-core.c:884 blk_crypto_submit_bio include/linux/blk-crypto.h:203 [inline] submit_bh_wbc+0x681/0x890 fs/buffer.c:2737 submit_bh fs/buffer.c:2742 [inline] block_read_full_folio+0x264/0x8e0 fs/buffer.c:2344 filemap_read_folio+0xfc/0x3b0 mm/filemap.c:2502 do_read_cache_folio+0x2d7/0x6b0 mm/filemap.c:4107 read_mapping_folio include/linux/pagemap.h:1017 [inline] read_part_sector+0xd1/0x370 block/partitions/core.c:724 adfspart_check_ICS+0x91/0x7d0 block/partitions/acorn.c:356 check_partition block/partitions/core.c:143 [inline] blk_add_partitions block/partitions/core.c:591 [inline] bdev_disk_changed+0x7a3/0x1250 block/partitions/core.c:695 blkdev_get_whole+0x187/0x290 block/bdev.c:756 bdev_open+0x2c7/0xe40 block/bdev.c:965 blkdev_open+0x34e/0x4f0 block/fops.c:697 do_dentry_open+0x6ab/0x14d0 fs/open.c:947 vfs_open+0x82/0x3f0 fs/open.c:1079 do_open fs/namei.c:4699 [inline] path_openat+0x208c/0x31a0 fs/namei.c:4858 do_file_open+0x20e/0x430 fs/namei.c:4887 do_sys_openat2+0x10d/0x1e0 fs/open.c:1364 do_sys_open fs/open.c:1370 [inline] __do_sys_openat fs/open.c:1386 [inline] __se_sys_openat fs/open.c:1381 [inline] __x64_sys_openat+0x12d/0x210 fs/open.c:1381 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (set->srcu){.+.+}-{0:0}: srcu_lock_sync include/linux/srcu.h:199 [inline] __synchronize_srcu+0xa2/0x300 kernel/rcu/srcutree.c:1481 blk_mq_wait_quiesce_done block/blk-mq.c:284 [inline] blk_mq_wait_quiesce_done block/blk-mq.c:281 [inline] blk_mq_quiesce_queue block/blk-mq.c:304 [inline] blk_mq_quiesce_queue+0x149/0x1c0 block/blk-mq.c:299 elevator_switch+0x17b/0x7e0 block/elevator.c:576 elevator_change+0x352/0x530 block/elevator.c:681 elevator_set_default+0x29e/0x360 block/elevator.c:754 blk_register_queue+0x48e/0x630 block/blk-sysfs.c:987 __add_disk+0x73f/0xe40 block/genhd.c:528 add_disk_fwnode+0x118/0x5c0 block/genhd.c:597 add_disk include/linux/blkdev.h:794 [inline] nbd_dev_add+0x77a/0xb10 drivers/block/nbd.c:1984 nbd_init+0x291/0x2b0 drivers/block/nbd.c:2692 do_one_initcall+0x121/0x750 init/main.c:1392 do_initcall_level init/main.c:1454 [inline] do_initcalls init/main.c:1470 [inline] do_basic_setup init/main.c:1490 [inline] kernel_init_freeable+0x6ea/0x7b0 init/main.c:1703 kernel_init+0x1f/0x1e0 init/main.c:1593 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #0 (&q->elevator_lock){+.+.}-{4:4}: check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x14b8/0x2630 kernel/locking/lockdep.c:5237 lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b1/0x370 kernel/locking/lockdep.c:5825 __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1b10 kernel/locking/mutex.c:820 elevator_change+0x1bc/0x530 block/elevator.c:679 elevator_set_none+0x92/0xf0 block/elevator.c:769 blk_mq_elv_switch_none block/blk-mq.c:5134 [inline] __blk_mq_update_nr_hw_queues block/blk-mq.c:5179 [inline] blk_mq_update_nr_hw_queues+0x4c1/0x15f0 block/blk-mq.c:5244 nbd_start_device+0x1a6/0xbd0 drivers/block/nbd.c:1489 nbd_genl_connect+0xff2/0x1a40 drivers/block/nbd.c:2239 genl_family_rcv_msg_doit+0x214/0x300 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x560/0x800 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x159/0x420 net/netlink/af_netlink.c:2555 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x585/0x850 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1899 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] ____sys_sendmsg+0x9e1/0xb70 net/socket.c:2699 ___sys_sendmsg+0x190/0x1e0 net/socket.c:2753 __sys_sendmsg+0x170/0x220 net/socket.c:2785 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Chain exists of: &q->elevator_lock --> fs_reclaim --> &q->q_usage_counter(io)#50 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&q->q_usage_counter(io)#50); lock(fs_reclaim); lock(&q->q_usage_counter(io)#50); lock(&q->elevator_lock); *** DEADLOCK *** 6 locks held by syz.0.18/5930: #0: ffffffff906b23a8 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1217 #1: ffffffff906b2460 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff906b2460 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff906b2460 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:57 [inline] #1: ffffffff906b2460 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x57b/0x800 net/netlink/genetlink.c:1208 #2: ffff8880297ef9c0 (&set->update_nr_hwq_lock){++++}-{4:4}, at: blk_mq_update_nr_hw_queues+0x9d/0x15f0 block/blk-mq.c:5242 #3: ffff8880297ef8d0 (&set->tag_list_lock){+.+.}-{4:4}, at: blk_mq_update_nr_hw_queues+0xb0/0x15f0 block/blk-mq.c:5243 #4: ffff888029892ef0 (&q->q_usage_counter(io)#50){++++}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:206 #5: ffff888029892f28 (&q->q_usage_counter(queue)#34){+.+.}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:206 stack backtrace: CPU: 2 UID: 0 PID: 5930 Comm: syz.0.18 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120 print_circular_bug.cold+0x178/0x1c7 kernel/locking/lockdep.c:2043 check_noncircular+0x146/0x160 kernel/locking/lockdep.c:2175 check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x14b8/0x2630 kernel/locking/lockdep.c:5237 lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b1/0x370 kernel/locking/lockdep.c:5825 __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1b10 kernel/locking/mutex.c:820 elevator_change+0x1bc/0x530 block/elevator.c:679 elevator_set_none+0x92/0xf0 block/elevator.c:769 blk_mq_elv_switch_none block/blk-mq.c:5134 [inline] __blk_mq_update_nr_hw_queues block/blk-mq.c:5179 [inline] blk_mq_update_nr_hw_queues+0x4c1/0x15f0 block/blk-mq.c:5244 nbd_start_device+0x1a6/0xbd0 drivers/block/nbd.c:1489 nbd_genl_connect+0xff2/0x1a40 drivers/block/nbd.c:2239 genl_family_rcv_msg_doit+0x214/0x300 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x560/0x800 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x159/0x420 net/netlink/af_netlink.c:2555 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x585/0x850 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1899 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] ____sys_sendmsg+0x9e1/0xb70 net/socket.c:2699 ___sys_sendmsg+0x190/0x1e0 net/socket.c:2753 __sys_sendmsg+0x170/0x220 net/socket.c:2785 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f30c679ce59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe07c165f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f30c6a15fa0 RCX: 00007f30c679ce59 RDX: 0000000020000000 RSI: 0000200000001ac0 RDI: 0000000000000007 RBP: 00007f30c6832d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f30c6a15fac R14: 00007f30c6a15fa0 R15: 00007f30c6a15fa0 nbd1: detected capacity change from 0 to 63 final repro crashed as (corrupted=false): ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.0.18/5930 is trying to acquire lock: ffff888029893418 (&q->elevator_lock){+.+.}-{4:4}, at: elevator_change+0x1bc/0x530 block/elevator.c:679 but task is already holding lock: ffff888029892ef0 (&q->q_usage_counter(io)#50){++++}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:206 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #6 (&q->q_usage_counter(io)#50){++++}-{0:0}: blk_alloc_queue+0x610/0x790 block/blk-core.c:461 blk_mq_alloc_queue+0x174/0x290 block/blk-mq.c:4453 __blk_mq_alloc_disk+0x29/0x120 block/blk-mq.c:4500 nbd_dev_add+0x492/0xb10 drivers/block/nbd.c:1954 nbd_init+0x291/0x2b0 drivers/block/nbd.c:2692 do_one_initcall+0x121/0x750 init/main.c:1392 do_initcall_level init/main.c:1454 [inline] do_initcalls init/main.c:1470 [inline] do_basic_setup init/main.c:1490 [inline] kernel_init_freeable+0x6ea/0x7b0 init/main.c:1703 kernel_init+0x1f/0x1e0 init/main.c:1593 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #5 (fs_reclaim){+.+.}-{0:0}: __fs_reclaim_acquire mm/page_alloc.c:4320 [inline] fs_reclaim_acquire+0xc4/0x100 mm/page_alloc.c:4334 might_alloc include/linux/sched/mm.h:317 [inline] slab_pre_alloc_hook mm/slub.c:4521 [inline] slab_alloc_node mm/slub.c:4876 [inline] __kmalloc_cache_node_noprof+0x4f/0x770 mm/slub.c:5428 kmalloc_node_noprof include/linux/slab.h:1077 [inline] alloc_worker kernel/workqueue.c:2698 [inline] create_worker+0x110/0x750 kernel/workqueue.c:2841 workqueue_prepare_cpu+0xb5/0x160 kernel/workqueue.c:6826 cpuhp_invoke_callback+0x3ab/0x9a0 kernel/cpu.c:194 __cpuhp_invoke_callback_range+0x158/0x1d0 kernel/cpu.c:972 cpuhp_invoke_callback_range kernel/cpu.c:996 [inline] cpuhp_up_callbacks kernel/cpu.c:1027 [inline] _cpu_up+0x3f6/0x960 kernel/cpu.c:1674 cpu_up+0x1ba/0x230 kernel/cpu.c:1706 cpuhp_bringup_mask+0xf8/0x180 kernel/cpu.c:1772 cpuhp_bringup_cpus_parallel kernel/cpu.c:1850 [inline] bringup_nonboot_cpus+0xd9/0x1b0 kernel/cpu.c:1876 smp_init+0x32/0x150 kernel/smp.c:1014 kernel_init_freeable+0x44b/0x7b0 init/main.c:1695 kernel_init+0x1f/0x1e0 init/main.c:1593 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #4 (cpu_hotplug_lock){++++}-{0:0}: percpu_down_read_internal include/linux/percpu-rwsem.h:53 [inline] percpu_down_read include/linux/percpu-rwsem.h:77 [inline] cpus_read_lock+0x42/0x170 kernel/cpu.c:490 static_key_slow_inc+0x12/0x30 kernel/jump_label.c:190 nbd_reconnect_socket drivers/block/nbd.c:1342 [inline] nbd_genl_reconfigure+0xd82/0x1a00 drivers/block/nbd.c:2431 genl_family_rcv_msg_doit+0x214/0x300 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x560/0x800 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x159/0x420 net/netlink/af_netlink.c:2555 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x585/0x850 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1899 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] ____sys_sendmsg+0x9e1/0xb70 net/socket.c:2699 ___sys_sendmsg+0x190/0x1e0 net/socket.c:2753 __sys_sendmsg+0x170/0x220 net/socket.c:2785 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #3 (&nsock->tx_lock){+.+.}-{4:4}: __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1b10 kernel/locking/mutex.c:820 nbd_handle_cmd drivers/block/nbd.c:1143 [inline] nbd_queue_rq+0x428/0x1080 drivers/block/nbd.c:1207 blk_mq_dispatch_rq_list+0x422/0x1e70 block/blk-mq.c:2148 __blk_mq_do_dispatch_sched block/blk-mq-sched.c:168 [inline] blk_mq_do_dispatch_sched block/blk-mq-sched.c:182 [inline] __blk_mq_sched_dispatch_requests+0xcea/0x1620 block/blk-mq-sched.c:307 blk_mq_sched_dispatch_requests+0xd7/0x1c0 block/blk-mq-sched.c:329 blk_mq_run_hw_queue+0x23c/0x670 block/blk-mq.c:2386 blk_mq_dispatch_list+0x51d/0x1360 block/blk-mq.c:2949 blk_mq_flush_plug_list block/blk-mq.c:2997 [inline] blk_mq_flush_plug_list+0x130/0x600 block/blk-mq.c:2969 __blk_flush_plug+0x2c4/0x4b0 block/blk-core.c:1230 blk_finish_plug block/blk-core.c:1257 [inline] __submit_bio+0x584/0x6c0 block/blk-core.c:649 __submit_bio_noacct_mq block/blk-core.c:722 [inline] submit_bio_noacct_nocheck+0x543/0xbf0 block/blk-core.c:753 submit_bio_noacct+0xd18/0x2000 block/blk-core.c:884 blk_crypto_submit_bio include/linux/blk-crypto.h:203 [inline] submit_bh_wbc+0x681/0x890 fs/buffer.c:2737 submit_bh fs/buffer.c:2742 [inline] block_read_full_folio+0x264/0x8e0 fs/buffer.c:2344 filemap_read_folio+0xfc/0x3b0 mm/filemap.c:2502 do_read_cache_folio+0x2d7/0x6b0 mm/filemap.c:4107 read_mapping_folio include/linux/pagemap.h:1017 [inline] read_part_sector+0xd1/0x370 block/partitions/core.c:724 adfspart_check_ICS+0x91/0x7d0 block/partitions/acorn.c:356 check_partition block/partitions/core.c:143 [inline] blk_add_partitions block/partitions/core.c:591 [inline] bdev_disk_changed+0x7a3/0x1250 block/partitions/core.c:695 blkdev_get_whole+0x187/0x290 block/bdev.c:756 bdev_open+0x2c7/0xe40 block/bdev.c:965 blkdev_open+0x34e/0x4f0 block/fops.c:697 do_dentry_open+0x6ab/0x14d0 fs/open.c:947 vfs_open+0x82/0x3f0 fs/open.c:1079 do_open fs/namei.c:4699 [inline] path_openat+0x208c/0x31a0 fs/namei.c:4858 do_file_open+0x20e/0x430 fs/namei.c:4887 do_sys_openat2+0x10d/0x1e0 fs/open.c:1364 do_sys_open fs/open.c:1370 [inline] __do_sys_openat fs/open.c:1386 [inline] __se_sys_openat fs/open.c:1381 [inline] __x64_sys_openat+0x12d/0x210 fs/open.c:1381 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #2 (&cmd->lock){+.+.}-{4:4}: __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1b10 kernel/locking/mutex.c:820 nbd_queue_rq+0xba/0x1080 drivers/block/nbd.c:1199 blk_mq_dispatch_rq_list+0x422/0x1e70 block/blk-mq.c:2148 __blk_mq_do_dispatch_sched block/blk-mq-sched.c:168 [inline] blk_mq_do_dispatch_sched block/blk-mq-sched.c:182 [inline] __blk_mq_sched_dispatch_requests+0xcea/0x1620 block/blk-mq-sched.c:307 blk_mq_sched_dispatch_requests+0xd7/0x1c0 block/blk-mq-sched.c:329 blk_mq_run_hw_queue+0x23c/0x670 block/blk-mq.c:2386 blk_mq_dispatch_list+0x51d/0x1360 block/blk-mq.c:2949 blk_mq_flush_plug_list block/blk-mq.c:2997 [inline] blk_mq_flush_plug_list+0x130/0x600 block/blk-mq.c:2969 __blk_flush_plug+0x2c4/0x4b0 block/blk-core.c:1230 blk_finish_plug block/blk-core.c:1257 [inline] __submit_bio+0x584/0x6c0 block/blk-core.c:649 __submit_bio_noacct_mq block/blk-core.c:722 [inline] submit_bio_noacct_nocheck+0x543/0xbf0 block/blk-core.c:753 submit_bio_noacct+0xd18/0x2000 block/blk-core.c:884 blk_crypto_submit_bio include/linux/blk-crypto.h:203 [inline] submit_bh_wbc+0x681/0x890 fs/buffer.c:2737 submit_bh fs/buffer.c:2742 [inline] block_read_full_folio+0x264/0x8e0 fs/buffer.c:2344 filemap_read_folio+0xfc/0x3b0 mm/filemap.c:2502 do_read_cache_folio+0x2d7/0x6b0 mm/filemap.c:4107 read_mapping_folio include/linux/pagemap.h:1017 [inline] read_part_sector+0xd1/0x370 block/partitions/core.c:724 adfspart_check_ICS+0x91/0x7d0 block/partitions/acorn.c:356 check_partition block/partitions/core.c:143 [inline] blk_add_partitions block/partitions/core.c:591 [inline] bdev_disk_changed+0x7a3/0x1250 block/partitions/core.c:695 blkdev_get_whole+0x187/0x290 block/bdev.c:756 bdev_open+0x2c7/0xe40 block/bdev.c:965 blkdev_open+0x34e/0x4f0 block/fops.c:697 do_dentry_open+0x6ab/0x14d0 fs/open.c:947 vfs_open+0x82/0x3f0 fs/open.c:1079 do_open fs/namei.c:4699 [inline] path_openat+0x208c/0x31a0 fs/namei.c:4858 do_file_open+0x20e/0x430 fs/namei.c:4887 do_sys_openat2+0x10d/0x1e0 fs/open.c:1364 do_sys_open fs/open.c:1370 [inline] __do_sys_openat fs/open.c:1386 [inline] __se_sys_openat fs/open.c:1381 [inline] __x64_sys_openat+0x12d/0x210 fs/open.c:1381 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (set->srcu){.+.+}-{0:0}: srcu_lock_sync include/linux/srcu.h:199 [inline] __synchronize_srcu+0xa2/0x300 kernel/rcu/srcutree.c:1481 blk_mq_wait_quiesce_done block/blk-mq.c:284 [inline] blk_mq_wait_quiesce_done block/blk-mq.c:281 [inline] blk_mq_quiesce_queue block/blk-mq.c:304 [inline] blk_mq_quiesce_queue+0x149/0x1c0 block/blk-mq.c:299 elevator_switch+0x17b/0x7e0 block/elevator.c:576 elevator_change+0x352/0x530 block/elevator.c:681 elevator_set_default+0x29e/0x360 block/elevator.c:754 blk_register_queue+0x48e/0x630 block/blk-sysfs.c:987 __add_disk+0x73f/0xe40 block/genhd.c:528 add_disk_fwnode+0x118/0x5c0 block/genhd.c:597 add_disk include/linux/blkdev.h:794 [inline] nbd_dev_add+0x77a/0xb10 drivers/block/nbd.c:1984 nbd_init+0x291/0x2b0 drivers/block/nbd.c:2692 do_one_initcall+0x121/0x750 init/main.c:1392 do_initcall_level init/main.c:1454 [inline] do_initcalls init/main.c:1470 [inline] do_basic_setup init/main.c:1490 [inline] kernel_init_freeable+0x6ea/0x7b0 init/main.c:1703 kernel_init+0x1f/0x1e0 init/main.c:1593 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #0 (&q->elevator_lock){+.+.}-{4:4}: check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x14b8/0x2630 kernel/locking/lockdep.c:5237 lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b1/0x370 kernel/locking/lockdep.c:5825 __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1b10 kernel/locking/mutex.c:820 elevator_change+0x1bc/0x530 block/elevator.c:679 elevator_set_none+0x92/0xf0 block/elevator.c:769 blk_mq_elv_switch_none block/blk-mq.c:5134 [inline] __blk_mq_update_nr_hw_queues block/blk-mq.c:5179 [inline] blk_mq_update_nr_hw_queues+0x4c1/0x15f0 block/blk-mq.c:5244 nbd_start_device+0x1a6/0xbd0 drivers/block/nbd.c:1489 nbd_genl_connect+0xff2/0x1a40 drivers/block/nbd.c:2239 genl_family_rcv_msg_doit+0x214/0x300 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x560/0x800 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x159/0x420 net/netlink/af_netlink.c:2555 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x585/0x850 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1899 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] ____sys_sendmsg+0x9e1/0xb70 net/socket.c:2699 ___sys_sendmsg+0x190/0x1e0 net/socket.c:2753 __sys_sendmsg+0x170/0x220 net/socket.c:2785 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Chain exists of: &q->elevator_lock --> fs_reclaim --> &q->q_usage_counter(io)#50 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&q->q_usage_counter(io)#50); lock(fs_reclaim); lock(&q->q_usage_counter(io)#50); lock(&q->elevator_lock); *** DEADLOCK *** 6 locks held by syz.0.18/5930: #0: ffffffff906b23a8 (cb_lock){++++}-{4:4}, at: genl_rcv+0x19/0x40 net/netlink/genetlink.c:1217 #1: ffffffff906b2460 (genl_mutex){+.+.}-{4:4}, at: genl_lock net/netlink/genetlink.c:35 [inline] #1: ffffffff906b2460 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:60 [inline] #1: ffffffff906b2460 (genl_mutex){+.+.}-{4:4}, at: genl_op_lock net/netlink/genetlink.c:57 [inline] #1: ffffffff906b2460 (genl_mutex){+.+.}-{4:4}, at: genl_rcv_msg+0x57b/0x800 net/netlink/genetlink.c:1208 #2: ffff8880297ef9c0 (&set->update_nr_hwq_lock){++++}-{4:4}, at: blk_mq_update_nr_hw_queues+0x9d/0x15f0 block/blk-mq.c:5242 #3: ffff8880297ef8d0 (&set->tag_list_lock){+.+.}-{4:4}, at: blk_mq_update_nr_hw_queues+0xb0/0x15f0 block/blk-mq.c:5243 #4: ffff888029892ef0 (&q->q_usage_counter(io)#50){++++}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:206 #5: ffff888029892f28 (&q->q_usage_counter(queue)#34){+.+.}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:206 stack backtrace: CPU: 2 UID: 0 PID: 5930 Comm: syz.0.18 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120 print_circular_bug.cold+0x178/0x1c7 kernel/locking/lockdep.c:2043 check_noncircular+0x146/0x160 kernel/locking/lockdep.c:2175 check_prev_add kernel/locking/lockdep.c:3165 [inline] check_prevs_add kernel/locking/lockdep.c:3284 [inline] validate_chain kernel/locking/lockdep.c:3908 [inline] __lock_acquire+0x14b8/0x2630 kernel/locking/lockdep.c:5237 lock_acquire kernel/locking/lockdep.c:5868 [inline] lock_acquire+0x1b1/0x370 kernel/locking/lockdep.c:5825 __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1b10 kernel/locking/mutex.c:820 elevator_change+0x1bc/0x530 block/elevator.c:679 elevator_set_none+0x92/0xf0 block/elevator.c:769 blk_mq_elv_switch_none block/blk-mq.c:5134 [inline] __blk_mq_update_nr_hw_queues block/blk-mq.c:5179 [inline] blk_mq_update_nr_hw_queues+0x4c1/0x15f0 block/blk-mq.c:5244 nbd_start_device+0x1a6/0xbd0 drivers/block/nbd.c:1489 nbd_genl_connect+0xff2/0x1a40 drivers/block/nbd.c:2239 genl_family_rcv_msg_doit+0x214/0x300 net/netlink/genetlink.c:1114 genl_family_rcv_msg net/netlink/genetlink.c:1194 [inline] genl_rcv_msg+0x560/0x800 net/netlink/genetlink.c:1209 netlink_rcv_skb+0x159/0x420 net/netlink/af_netlink.c:2555 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1218 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x585/0x850 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x8b0/0xda0 net/netlink/af_netlink.c:1899 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] ____sys_sendmsg+0x9e1/0xb70 net/socket.c:2699 ___sys_sendmsg+0x190/0x1e0 net/socket.c:2753 __sys_sendmsg+0x170/0x220 net/socket.c:2785 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f30c679ce59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe07c165f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f30c6a15fa0 RCX: 00007f30c679ce59 RDX: 0000000020000000 RSI: 0000200000001ac0 RDI: 0000000000000007 RBP: 00007f30c6832d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f30c6a15fac R14: 00007f30c6a15fa0 R15: 00007f30c6a15fa0 nbd1: detected capacity change from 0 to 63