Extracting prog: 44.107695772s Minimizing prog: 24m47.678615982s Simplifying prog options: 0s Extracting C: 35.121255395s Simplifying C: 7m6.539702461s extracting reproducer from 24 programs first checking the prog from the crash report 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-openat$auto_proc_clear_refs_operations_internal-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto_proc_clear_refs_operations_internal-madvise$auto-write$auto-mmap$auto-openat$auto_tty_fops_tty_io-syz_genetlink_get_family_id$auto_taskstats detailed listing: executing program 0: openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000000)='/sys/devices/virtual/block/nbd13/queue/wbt_lat_usec\x00', 0x2, 0x0) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) r0 = openat$auto_proc_clear_refs_operations_internal(0xffffffffffffff9c, &(0x7f0000000600)='/proc/thread-self/clear_refs\x00', 0x2, 0x0) r1 = socket(0x10, 0x2, 0x0) sendmsg$auto_NL80211_CMD_GET_REG(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000300)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYBLOB="1200", @ANYBLOB=']'], 0x1ac}}, 0x40000) recvmmsg$auto(r1, &(0x7f0000000140)={{0x0, 0x1, &(0x7f0000000080)={0x0, 0x400}, 0x5, 0x0, 0x200002, 0x8}, 0x803}, 0xfffffff9, 0x10, 0x0) write$auto_proc_clear_refs_operations_internal(r0, 0x0, 0xffffff4b) madvise$auto(0x0, 0xffffffffffff0001, 0x15) write$auto(0x3, 0x0, 0xfffffdef) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/ptyd9\x00', 0x0, 0x0) syz_genetlink_get_family_id$auto_taskstats(0x0, r1) program crashed: possible deadlock in queue_wb_lat_store single: successfully extracted reproducer found reproducer with 12 syscalls minimizing guilty program testing program (duration=53.206838952s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-openat$auto_proc_clear_refs_operations_internal-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto_proc_clear_refs_operations_internal-madvise$auto-write$auto-mmap$auto-openat$auto_tty_fops_tty_io detailed listing: executing program 0: openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000000)='/sys/devices/virtual/block/nbd13/queue/wbt_lat_usec\x00', 0x2, 0x0) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) r0 = openat$auto_proc_clear_refs_operations_internal(0xffffffffffffff9c, &(0x7f0000000600)='/proc/thread-self/clear_refs\x00', 0x2, 0x0) r1 = socket(0x10, 0x2, 0x0) sendmsg$auto_NL80211_CMD_GET_REG(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000300)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYBLOB="1200", @ANYBLOB=']'], 0x1ac}}, 0x40000) recvmmsg$auto(r1, &(0x7f0000000140)={{0x0, 0x1, &(0x7f0000000080)={0x0, 0x400}, 0x5, 0x0, 0x200002, 0x8}, 0x803}, 0xfffffff9, 0x10, 0x0) write$auto_proc_clear_refs_operations_internal(r0, 0x0, 0xffffff4b) madvise$auto(0x0, 0xffffffffffff0001, 0x15) write$auto(0x3, 0x0, 0xfffffdef) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) openat$auto_tty_fops_tty_io(0xffffffffffffff9c, &(0x7f0000000080)='/dev/ptyd9\x00', 0x0, 0x0) program crashed: possible deadlock in queue_wb_lat_store testing program (duration=53.206838952s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-openat$auto_proc_clear_refs_operations_internal-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto_proc_clear_refs_operations_internal-madvise$auto-write$auto-mmap$auto detailed listing: executing program 0: openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000000)='/sys/devices/virtual/block/nbd13/queue/wbt_lat_usec\x00', 0x2, 0x0) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) r0 = openat$auto_proc_clear_refs_operations_internal(0xffffffffffffff9c, &(0x7f0000000600)='/proc/thread-self/clear_refs\x00', 0x2, 0x0) r1 = socket(0x10, 0x2, 0x0) sendmsg$auto_NL80211_CMD_GET_REG(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000300)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYBLOB="1200", @ANYBLOB=']'], 0x1ac}}, 0x40000) recvmmsg$auto(r1, &(0x7f0000000140)={{0x0, 0x1, &(0x7f0000000080)={0x0, 0x400}, 0x5, 0x0, 0x200002, 0x8}, 0x803}, 0xfffffff9, 0x10, 0x0) write$auto_proc_clear_refs_operations_internal(r0, 0x0, 0xffffff4b) madvise$auto(0x0, 0xffffffffffff0001, 0x15) write$auto(0x3, 0x0, 0xfffffdef) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) program crashed: possible deadlock in queue_wb_lat_store testing program (duration=53.206838952s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-openat$auto_proc_clear_refs_operations_internal-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto_proc_clear_refs_operations_internal-madvise$auto-write$auto detailed listing: executing program 0: openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000000)='/sys/devices/virtual/block/nbd13/queue/wbt_lat_usec\x00', 0x2, 0x0) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) r0 = openat$auto_proc_clear_refs_operations_internal(0xffffffffffffff9c, &(0x7f0000000600)='/proc/thread-self/clear_refs\x00', 0x2, 0x0) r1 = socket(0x10, 0x2, 0x0) sendmsg$auto_NL80211_CMD_GET_REG(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000300)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYBLOB="1200", @ANYBLOB=']'], 0x1ac}}, 0x40000) recvmmsg$auto(r1, &(0x7f0000000140)={{0x0, 0x1, &(0x7f0000000080)={0x0, 0x400}, 0x5, 0x0, 0x200002, 0x8}, 0x803}, 0xfffffff9, 0x10, 0x0) write$auto_proc_clear_refs_operations_internal(r0, 0x0, 0xffffff4b) madvise$auto(0x0, 0xffffffffffff0001, 0x15) write$auto(0x3, 0x0, 0xfffffdef) program crashed: possible deadlock in queue_wb_lat_store testing program (duration=53.206838952s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-openat$auto_proc_clear_refs_operations_internal-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto_proc_clear_refs_operations_internal-madvise$auto detailed listing: executing program 0: openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000000)='/sys/devices/virtual/block/nbd13/queue/wbt_lat_usec\x00', 0x2, 0x0) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) r0 = openat$auto_proc_clear_refs_operations_internal(0xffffffffffffff9c, &(0x7f0000000600)='/proc/thread-self/clear_refs\x00', 0x2, 0x0) r1 = socket(0x10, 0x2, 0x0) sendmsg$auto_NL80211_CMD_GET_REG(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000300)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYBLOB="1200", @ANYBLOB=']'], 0x1ac}}, 0x40000) recvmmsg$auto(r1, &(0x7f0000000140)={{0x0, 0x1, &(0x7f0000000080)={0x0, 0x400}, 0x5, 0x0, 0x200002, 0x8}, 0x803}, 0xfffffff9, 0x10, 0x0) write$auto_proc_clear_refs_operations_internal(r0, 0x0, 0xffffff4b) madvise$auto(0x0, 0xffffffffffff0001, 0x15) program did not crash testing program (duration=53.206838952s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-openat$auto_proc_clear_refs_operations_internal-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto_proc_clear_refs_operations_internal-write$auto detailed listing: executing program 0: openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000000)='/sys/devices/virtual/block/nbd13/queue/wbt_lat_usec\x00', 0x2, 0x0) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) r0 = openat$auto_proc_clear_refs_operations_internal(0xffffffffffffff9c, &(0x7f0000000600)='/proc/thread-self/clear_refs\x00', 0x2, 0x0) r1 = socket(0x10, 0x2, 0x0) sendmsg$auto_NL80211_CMD_GET_REG(r1, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000300)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYBLOB="1200", @ANYBLOB=']'], 0x1ac}}, 0x40000) recvmmsg$auto(r1, &(0x7f0000000140)={{0x0, 0x1, &(0x7f0000000080)={0x0, 0x400}, 0x5, 0x0, 0x200002, 0x8}, 0x803}, 0xfffffff9, 0x10, 0x0) write$auto_proc_clear_refs_operations_internal(r0, 0x0, 0xffffff4b) write$auto(0x3, 0x0, 0xfffffdef) program crashed: possible deadlock in queue_wb_lat_store testing program (duration=53.206838952s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-openat$auto_proc_clear_refs_operations_internal-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto detailed listing: executing program 0: openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000000)='/sys/devices/virtual/block/nbd13/queue/wbt_lat_usec\x00', 0x2, 0x0) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) openat$auto_proc_clear_refs_operations_internal(0xffffffffffffff9c, &(0x7f0000000600)='/proc/thread-self/clear_refs\x00', 0x2, 0x0) r0 = socket(0x10, 0x2, 0x0) sendmsg$auto_NL80211_CMD_GET_REG(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000300)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYBLOB="1200", @ANYBLOB=']'], 0x1ac}}, 0x40000) recvmmsg$auto(r0, &(0x7f0000000140)={{0x0, 0x1, &(0x7f0000000080)={0x0, 0x400}, 0x5, 0x0, 0x200002, 0x8}, 0x803}, 0xfffffff9, 0x10, 0x0) write$auto(0x3, 0x0, 0xfffffdef) program crashed: possible deadlock in queue_wb_lat_store testing program (duration=53.206838952s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-openat$auto_proc_clear_refs_operations_internal-socket-sendmsg$auto_NL80211_CMD_GET_REG-write$auto detailed listing: executing program 0: openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000000)='/sys/devices/virtual/block/nbd13/queue/wbt_lat_usec\x00', 0x2, 0x0) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) openat$auto_proc_clear_refs_operations_internal(0xffffffffffffff9c, &(0x7f0000000600)='/proc/thread-self/clear_refs\x00', 0x2, 0x0) r0 = socket(0x10, 0x2, 0x0) sendmsg$auto_NL80211_CMD_GET_REG(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000300)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYBLOB="1200", @ANYBLOB=']'], 0x1ac}}, 0x40000) write$auto(0x3, 0x0, 0xfffffdef) program did not crash testing program (duration=53.206838952s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-openat$auto_proc_clear_refs_operations_internal-socket-recvmmsg$auto-write$auto detailed listing: executing program 0: openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000000)='/sys/devices/virtual/block/nbd13/queue/wbt_lat_usec\x00', 0x2, 0x0) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) openat$auto_proc_clear_refs_operations_internal(0xffffffffffffff9c, &(0x7f0000000600)='/proc/thread-self/clear_refs\x00', 0x2, 0x0) r0 = socket(0x10, 0x2, 0x0) recvmmsg$auto(r0, &(0x7f0000000140)={{0x0, 0x1, &(0x7f0000000080)={0x0, 0x400}, 0x5, 0x0, 0x200002, 0x8}, 0x803}, 0xfffffff9, 0x10, 0x0) write$auto(0x3, 0x0, 0xfffffdef) program did not crash testing program (duration=53.206838952s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-openat$auto_proc_clear_refs_operations_internal-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto detailed listing: executing program 0: openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000000)='/sys/devices/virtual/block/nbd13/queue/wbt_lat_usec\x00', 0x2, 0x0) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) openat$auto_proc_clear_refs_operations_internal(0xffffffffffffff9c, &(0x7f0000000600)='/proc/thread-self/clear_refs\x00', 0x2, 0x0) sendmsg$auto_NL80211_CMD_GET_REG(0xffffffffffffffff, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000300)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYBLOB="1200", @ANYBLOB=']'], 0x1ac}}, 0x40000) recvmmsg$auto(0xffffffffffffffff, &(0x7f0000000140)={{0x0, 0x1, &(0x7f0000000080)={0x0, 0x400}, 0x5, 0x0, 0x200002, 0x8}, 0x803}, 0xfffffff9, 0x10, 0x0) write$auto(0x3, 0x0, 0xfffffdef) program did not crash testing program (duration=53.206838952s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto detailed listing: executing program 0: openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000000)='/sys/devices/virtual/block/nbd13/queue/wbt_lat_usec\x00', 0x2, 0x0) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) r0 = socket(0x10, 0x2, 0x0) sendmsg$auto_NL80211_CMD_GET_REG(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000300)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYBLOB="1200", @ANYBLOB=']'], 0x1ac}}, 0x40000) recvmmsg$auto(r0, &(0x7f0000000140)={{0x0, 0x1, &(0x7f0000000080)={0x0, 0x400}, 0x5, 0x0, 0x200002, 0x8}, 0x803}, 0xfffffff9, 0x10, 0x0) write$auto(0x3, 0x0, 0xfffffdef) program crashed: possible deadlock in queue_wb_lat_store testing program (duration=53.206838952s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto detailed listing: executing program 0: openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000000)='/sys/devices/virtual/block/nbd13/queue/wbt_lat_usec\x00', 0x2, 0x0) r0 = socket(0x10, 0x2, 0x0) sendmsg$auto_NL80211_CMD_GET_REG(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000300)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYBLOB="1200", @ANYBLOB=']'], 0x1ac}}, 0x40000) recvmmsg$auto(r0, &(0x7f0000000140)={{0x0, 0x1, &(0x7f0000000080)={0x0, 0x400}, 0x5, 0x0, 0x200002, 0x8}, 0x803}, 0xfffffff9, 0x10, 0x0) write$auto(0x3, 0x0, 0xfffffdef) program did not crash testing program (duration=53.206838952s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto detailed listing: executing program 0: mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) r0 = socket(0x10, 0x2, 0x0) sendmsg$auto_NL80211_CMD_GET_REG(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000300)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYBLOB="1200", @ANYBLOB=']'], 0x1ac}}, 0x40000) recvmmsg$auto(r0, &(0x7f0000000140)={{0x0, 0x1, &(0x7f0000000080)={0x0, 0x400}, 0x5, 0x0, 0x200002, 0x8}, 0x803}, 0xfffffff9, 0x10, 0x0) write$auto(0x3, 0x0, 0xfffffdef) program did not crash testing program (duration=53.206838952s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto detailed listing: executing program 0: openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, 0x0, 0x2, 0x0) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) r0 = socket(0x10, 0x2, 0x0) sendmsg$auto_NL80211_CMD_GET_REG(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000300)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYBLOB="1200", @ANYBLOB=']'], 0x1ac}}, 0x40000) recvmmsg$auto(r0, &(0x7f0000000140)={{0x0, 0x1, &(0x7f0000000080)={0x0, 0x400}, 0x5, 0x0, 0x200002, 0x8}, 0x803}, 0xfffffff9, 0x10, 0x0) write$auto(0x3, 0x0, 0xfffffdef) program did not crash testing program (duration=53.206838952s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto detailed listing: executing program 0: openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000000)='/sys/devices/virtual/block/nbd13/queue/wbt_lat_usec\x00', 0x2, 0x0) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) r0 = socket(0x10, 0x2, 0x0) sendmsg$auto_NL80211_CMD_GET_REG(r0, 0x0, 0x40000) recvmmsg$auto(r0, &(0x7f0000000140)={{0x0, 0x1, &(0x7f0000000080)={0x0, 0x400}, 0x5, 0x0, 0x200002, 0x8}, 0x803}, 0xfffffff9, 0x10, 0x0) write$auto(0x3, 0x0, 0xfffffdef) program did not crash testing program (duration=53.206838952s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto detailed listing: executing program 0: openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000000)='/sys/devices/virtual/block/nbd13/queue/wbt_lat_usec\x00', 0x2, 0x0) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) r0 = socket(0x10, 0x2, 0x0) sendmsg$auto_NL80211_CMD_GET_REG(r0, &(0x7f0000000240)={0x0, 0x0, 0x0}, 0x40000) recvmmsg$auto(r0, &(0x7f0000000140)={{0x0, 0x1, &(0x7f0000000080)={0x0, 0x400}, 0x5, 0x0, 0x200002, 0x8}, 0x803}, 0xfffffff9, 0x10, 0x0) write$auto(0x3, 0x0, 0xfffffdef) program did not crash testing program (duration=53.206838952s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto detailed listing: executing program 0: openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000000)='/sys/devices/virtual/block/nbd13/queue/wbt_lat_usec\x00', 0x2, 0x0) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) r0 = socket(0x10, 0x2, 0x0) sendmsg$auto_NL80211_CMD_GET_REG(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={0x0, 0x1ac}}, 0x40000) recvmmsg$auto(r0, &(0x7f0000000140)={{0x0, 0x1, &(0x7f0000000080)={0x0, 0x400}, 0x5, 0x0, 0x200002, 0x8}, 0x803}, 0xfffffff9, 0x10, 0x0) write$auto(0x3, 0x0, 0xfffffdef) program did not crash testing program (duration=53.206838952s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto detailed listing: executing program 0: openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000000)='/sys/devices/virtual/block/nbd13/queue/wbt_lat_usec\x00', 0x2, 0x0) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) r0 = socket(0x10, 0x2, 0x0) sendmsg$auto_NL80211_CMD_GET_REG(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000300)=ANY=[], 0x1ac}}, 0x40000) recvmmsg$auto(r0, &(0x7f0000000140)={{0x0, 0x1, &(0x7f0000000080)={0x0, 0x400}, 0x5, 0x0, 0x200002, 0x8}, 0x803}, 0xfffffff9, 0x10, 0x0) write$auto(0x3, 0x0, 0xfffffdef) program did not crash testing program (duration=53.206838952s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto detailed listing: executing program 0: openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000000)='/sys/devices/virtual/block/nbd13/queue/wbt_lat_usec\x00', 0x2, 0x0) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) r0 = socket(0x10, 0x2, 0x0) sendmsg$auto_NL80211_CMD_GET_REG(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000300)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYBLOB="1200", @ANYBLOB], 0x1ac}}, 0x40000) recvmmsg$auto(r0, &(0x7f0000000140)={{0x0, 0x1, &(0x7f0000000080)={0x0, 0x400}, 0x5, 0x0, 0x200002, 0x8}, 0x803}, 0xfffffff9, 0x10, 0x0) write$auto(0x3, 0x0, 0xfffffdef) program did not crash testing program (duration=53.206838952s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto detailed listing: executing program 0: openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000000)='/sys/devices/virtual/block/nbd13/queue/wbt_lat_usec\x00', 0x2, 0x0) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) r0 = socket(0x10, 0x2, 0x0) sendmsg$auto_NL80211_CMD_GET_REG(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000300)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYBLOB, @ANYBLOB=']'], 0x1ac}}, 0x40000) recvmmsg$auto(r0, &(0x7f0000000140)={{0x0, 0x1, &(0x7f0000000080)={0x0, 0x400}, 0x5, 0x0, 0x200002, 0x8}, 0x803}, 0xfffffff9, 0x10, 0x0) write$auto(0x3, 0x0, 0xfffffdef) program did not crash testing program (duration=53.206838952s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto detailed listing: executing program 0: openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000000)='/sys/devices/virtual/block/nbd13/queue/wbt_lat_usec\x00', 0x2, 0x0) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) r0 = socket(0x10, 0x2, 0x0) sendmsg$auto_NL80211_CMD_GET_REG(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000300)=ANY=[@ANYBLOB, @ANYBLOB="1200", @ANYBLOB=']'], 0x1ac}}, 0x40000) recvmmsg$auto(r0, &(0x7f0000000140)={{0x0, 0x1, &(0x7f0000000080)={0x0, 0x400}, 0x5, 0x0, 0x200002, 0x8}, 0x803}, 0xfffffff9, 0x10, 0x0) write$auto(0x3, 0x0, 0xfffffdef) program did not crash testing program (duration=53.206838952s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto detailed listing: executing program 0: openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000000)='/sys/devices/virtual/block/nbd13/queue/wbt_lat_usec\x00', 0x2, 0x0) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) r0 = socket(0x10, 0x2, 0x0) sendmsg$auto_NL80211_CMD_GET_REG(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000300)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYBLOB="1200", @ANYBLOB=']'], 0x1ac}}, 0x40000) recvmmsg$auto(r0, 0x0, 0xfffffff9, 0x10, 0x0) write$auto(0x3, 0x0, 0xfffffdef) program did not crash testing program (duration=53.206838952s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto detailed listing: executing program 0: openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000000)='/sys/devices/virtual/block/nbd13/queue/wbt_lat_usec\x00', 0x2, 0x0) mmap$auto(0x0, 0x400008, 0xdf, 0x9b72, 0x2, 0x8000) r0 = socket(0x10, 0x2, 0x0) sendmsg$auto_NL80211_CMD_GET_REG(r0, &(0x7f0000000240)={0x0, 0x0, &(0x7f0000000200)={&(0x7f0000000300)=ANY=[@ANYBLOB=' \x00\x00\x00', @ANYBLOB="1200", @ANYBLOB=']'], 0x1ac}}, 0x40000) recvmmsg$auto(r0, &(0x7f0000000140)={{0x0, 0x1, 0x0, 0x5, 0x0, 0x200002, 0x8}, 0x803}, 0xfffffff9, 0x10, 0x0) write$auto(0x3, 0x0, 0xfffffdef) program did not crash extracting C reproducer testing compiled C program (duration=53.206838952s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto program crashed: possible deadlock in queue_wb_lat_store simplifying C reproducer testing compiled C program (duration=53.206838952s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto program did not crash testing compiled C program (duration=53.206838952s, {Threaded:true 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto program crashed: possible deadlock in queue_wb_lat_store testing compiled C program (duration=53.206838952s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto program crashed: possible deadlock in queue_wb_lat_store testing compiled C program (duration=53.206838952s, {Threaded:true Repeat:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto program crashed: possible deadlock in queue_wb_lat_store testing compiled C program (duration=53.206838952s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto program crashed: possible deadlock in queue_wb_lat_store testing compiled C program (duration=53.206838952s, {Threaded:true Repeat:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto program crashed: possible deadlock in queue_wb_lat_store testing compiled C program (duration=53.206838952s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): openat$auto_kernfs_file_fops_kernfs_internal-mmap$auto-socket-sendmsg$auto_NL80211_CMD_GET_REG-recvmmsg$auto-write$auto program crashed: possible deadlock in queue_wb_lat_store reproducing took 33m13.447287896s repro crashed as (corrupted=false): ====================================================== WARNING: possible circular locking dependency detected 6.15.0-rc2-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor134/5835 is trying to acquire lock: ffff8880260c0f98 (&q->elevator_lock){+.+.}-{4:4}, at: queue_wb_lat_store+0x187/0x3d0 block/blk-sysfs.c:596 but task is already holding lock: ffff8880260c0a68 (&q->q_usage_counter(io)#62){++++}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:215 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&q->q_usage_counter(io)#62){++++}-{0:0}: blk_alloc_queue+0x619/0x760 block/blk-core.c:461 blk_mq_alloc_queue+0x179/0x290 block/blk-mq.c:4348 __blk_mq_alloc_disk+0x29/0x120 block/blk-mq.c:4395 nbd_dev_add+0x49d/0xbb0 drivers/block/nbd.c:1933 nbd_init+0x181/0x320 drivers/block/nbd.c:2670 do_one_initcall+0x120/0x6e0 init/main.c:1257 do_initcall_level init/main.c:1319 [inline] do_initcalls init/main.c:1335 [inline] do_basic_setup init/main.c:1354 [inline] kernel_init_freeable+0x5c2/0x900 init/main.c:1567 kernel_init+0x1c/0x2b0 init/main.c:1457 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #1 (fs_reclaim){+.+.}-{0:0}: __fs_reclaim_acquire mm/page_alloc.c:4028 [inline] fs_reclaim_acquire+0x102/0x150 mm/page_alloc.c:4042 might_alloc include/linux/sched/mm.h:318 [inline] slab_pre_alloc_hook mm/slub.c:4102 [inline] slab_alloc_node mm/slub.c:4180 [inline] kmem_cache_alloc_noprof+0x53/0x3b0 mm/slub.c:4207 __kernfs_new_node+0xd2/0x8a0 fs/kernfs/dir.c:637 kernfs_new_node+0x13c/0x1e0 fs/kernfs/dir.c:713 kernfs_create_dir_ns+0x4c/0x1a0 fs/kernfs/dir.c:1081 sysfs_create_dir_ns+0x13a/0x2b0 fs/sysfs/dir.c:59 create_dir lib/kobject.c:73 [inline] kobject_add_internal+0x2c4/0x9b0 lib/kobject.c:240 kobject_add_varg lib/kobject.c:374 [inline] kobject_add+0x16e/0x240 lib/kobject.c:426 elv_register_queue+0xd3/0x2a0 block/elevator.c:462 blk_register_queue+0x37e/0x500 block/blk-sysfs.c:874 add_disk_fwnode+0x911/0x13a0 block/genhd.c:505 add_disk include/linux/blkdev.h:779 [inline] nbd_dev_add+0x78e/0xbb0 drivers/block/nbd.c:1963 nbd_init+0x181/0x320 drivers/block/nbd.c:2670 do_one_initcall+0x120/0x6e0 init/main.c:1257 do_initcall_level init/main.c:1319 [inline] do_initcalls init/main.c:1335 [inline] do_basic_setup init/main.c:1354 [inline] kernel_init_freeable+0x5c2/0x900 init/main.c:1567 kernel_init+0x1c/0x2b0 init/main.c:1457 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153 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:3166 [inline] check_prevs_add kernel/locking/lockdep.c:3285 [inline] validate_chain kernel/locking/lockdep.c:3909 [inline] __lock_acquire+0x1173/0x1ba0 kernel/locking/lockdep.c:5235 lock_acquire kernel/locking/lockdep.c:5866 [inline] lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5823 __mutex_lock_common kernel/locking/mutex.c:601 [inline] __mutex_lock+0x199/0xb90 kernel/locking/mutex.c:746 queue_wb_lat_store+0x187/0x3d0 block/blk-sysfs.c:596 queue_attr_store+0x270/0x310 block/blk-sysfs.c:799 sysfs_kf_write+0xef/0x150 fs/sysfs/file.c:145 kernfs_fop_write_iter+0x351/0x510 fs/kernfs/file.c:334 new_sync_write fs/read_write.c:591 [inline] vfs_write+0x5ba/0x1180 fs/read_write.c:684 ksys_write+0x12a/0x240 fs/read_write.c:736 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 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)#62 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&q->q_usage_counter(io)#62); lock(fs_reclaim); lock(&q->q_usage_counter(io)#62); lock(&q->elevator_lock); *** DEADLOCK *** 6 locks held by syz-executor134/5835: #0: ffff88802ae609b8 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x2a2/0x370 fs/file.c:1213 #1: ffff888024454420 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x240 fs/read_write.c:736 #2: ffff888033450088 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325 #3: ffff888140fb55a8 (kn->active#47){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326 #4: ffff8880260c0a68 (&q->q_usage_counter(io)#62){++++}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:215 #5: ffff8880260c0aa0 (&q->q_usage_counter(queue)#14){+.+.}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:215 stack backtrace: CPU: 1 UID: 0 PID: 5835 Comm: syz-executor134 Not tainted 6.15.0-rc2-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_circular_bug+0x275/0x350 kernel/locking/lockdep.c:2079 check_noncircular+0x14c/0x170 kernel/locking/lockdep.c:2211 check_prev_add kernel/locking/lockdep.c:3166 [inline] check_prevs_add kernel/locking/lockdep.c:3285 [inline] validate_chain kernel/locking/lockdep.c:3909 [inline] __lock_acquire+0x1173/0x1ba0 kernel/locking/lockdep.c:5235 lock_acquire kernel/locking/lockdep.c:5866 [inline] lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5823 __mutex_lock_common kernel/locking/mutex.c:601 [inline] __mutex_lock+0x199/0xb90 kernel/locking/mutex.c:746 queue_wb_lat_store+0x187/0x3d0 block/blk-sysfs.c:596 queue_attr_store+0x270/0x310 block/blk-sysfs.c:799 sysfs_kf_write+0xef/0x150 fs/sysfs/file.c:145 kernfs_fop_write_iter+0x351/0x510 fs/kernfs/file.c:334 new_sync_write fs/read_write.c:591 [inline] vfs_write+0x5ba/0x1180 fs/read_write.c:684 ksys_write+0x12a/0x240 fs/read_write.c:736 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f217454ee39 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f21744e8218 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f21745d8318 RCX: 00007f217454ee39 RDX: 00000000fffffdef RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f21745d8310 R08: 00007ffee7802e27 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f21745a6004 R13: 0000200000000150 R14: 0000200000000140 R15: 00000000fffffdef final repro crashed as (corrupted=false): ====================================================== WARNING: possible circular locking dependency detected 6.15.0-rc2-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor134/5835 is trying to acquire lock: ffff8880260c0f98 (&q->elevator_lock){+.+.}-{4:4}, at: queue_wb_lat_store+0x187/0x3d0 block/blk-sysfs.c:596 but task is already holding lock: ffff8880260c0a68 (&q->q_usage_counter(io)#62){++++}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:215 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&q->q_usage_counter(io)#62){++++}-{0:0}: blk_alloc_queue+0x619/0x760 block/blk-core.c:461 blk_mq_alloc_queue+0x179/0x290 block/blk-mq.c:4348 __blk_mq_alloc_disk+0x29/0x120 block/blk-mq.c:4395 nbd_dev_add+0x49d/0xbb0 drivers/block/nbd.c:1933 nbd_init+0x181/0x320 drivers/block/nbd.c:2670 do_one_initcall+0x120/0x6e0 init/main.c:1257 do_initcall_level init/main.c:1319 [inline] do_initcalls init/main.c:1335 [inline] do_basic_setup init/main.c:1354 [inline] kernel_init_freeable+0x5c2/0x900 init/main.c:1567 kernel_init+0x1c/0x2b0 init/main.c:1457 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 -> #1 (fs_reclaim){+.+.}-{0:0}: __fs_reclaim_acquire mm/page_alloc.c:4028 [inline] fs_reclaim_acquire+0x102/0x150 mm/page_alloc.c:4042 might_alloc include/linux/sched/mm.h:318 [inline] slab_pre_alloc_hook mm/slub.c:4102 [inline] slab_alloc_node mm/slub.c:4180 [inline] kmem_cache_alloc_noprof+0x53/0x3b0 mm/slub.c:4207 __kernfs_new_node+0xd2/0x8a0 fs/kernfs/dir.c:637 kernfs_new_node+0x13c/0x1e0 fs/kernfs/dir.c:713 kernfs_create_dir_ns+0x4c/0x1a0 fs/kernfs/dir.c:1081 sysfs_create_dir_ns+0x13a/0x2b0 fs/sysfs/dir.c:59 create_dir lib/kobject.c:73 [inline] kobject_add_internal+0x2c4/0x9b0 lib/kobject.c:240 kobject_add_varg lib/kobject.c:374 [inline] kobject_add+0x16e/0x240 lib/kobject.c:426 elv_register_queue+0xd3/0x2a0 block/elevator.c:462 blk_register_queue+0x37e/0x500 block/blk-sysfs.c:874 add_disk_fwnode+0x911/0x13a0 block/genhd.c:505 add_disk include/linux/blkdev.h:779 [inline] nbd_dev_add+0x78e/0xbb0 drivers/block/nbd.c:1963 nbd_init+0x181/0x320 drivers/block/nbd.c:2670 do_one_initcall+0x120/0x6e0 init/main.c:1257 do_initcall_level init/main.c:1319 [inline] do_initcalls init/main.c:1335 [inline] do_basic_setup init/main.c:1354 [inline] kernel_init_freeable+0x5c2/0x900 init/main.c:1567 kernel_init+0x1c/0x2b0 init/main.c:1457 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:153 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:3166 [inline] check_prevs_add kernel/locking/lockdep.c:3285 [inline] validate_chain kernel/locking/lockdep.c:3909 [inline] __lock_acquire+0x1173/0x1ba0 kernel/locking/lockdep.c:5235 lock_acquire kernel/locking/lockdep.c:5866 [inline] lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5823 __mutex_lock_common kernel/locking/mutex.c:601 [inline] __mutex_lock+0x199/0xb90 kernel/locking/mutex.c:746 queue_wb_lat_store+0x187/0x3d0 block/blk-sysfs.c:596 queue_attr_store+0x270/0x310 block/blk-sysfs.c:799 sysfs_kf_write+0xef/0x150 fs/sysfs/file.c:145 kernfs_fop_write_iter+0x351/0x510 fs/kernfs/file.c:334 new_sync_write fs/read_write.c:591 [inline] vfs_write+0x5ba/0x1180 fs/read_write.c:684 ksys_write+0x12a/0x240 fs/read_write.c:736 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 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)#62 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&q->q_usage_counter(io)#62); lock(fs_reclaim); lock(&q->q_usage_counter(io)#62); lock(&q->elevator_lock); *** DEADLOCK *** 6 locks held by syz-executor134/5835: #0: ffff88802ae609b8 (&f->f_pos_lock){+.+.}-{4:4}, at: fdget_pos+0x2a2/0x370 fs/file.c:1213 #1: ffff888024454420 (sb_writers#7){.+.+}-{0:0}, at: ksys_write+0x12a/0x240 fs/read_write.c:736 #2: ffff888033450088 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x28f/0x510 fs/kernfs/file.c:325 #3: ffff888140fb55a8 (kn->active#47){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x2b2/0x510 fs/kernfs/file.c:326 #4: ffff8880260c0a68 (&q->q_usage_counter(io)#62){++++}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:215 #5: ffff8880260c0aa0 (&q->q_usage_counter(queue)#14){+.+.}-{0:0}, at: blk_mq_freeze_queue_nomemsave+0x15/0x20 block/blk-mq.c:215 stack backtrace: CPU: 1 UID: 0 PID: 5835 Comm: syz-executor134 Not tainted 6.15.0-rc2-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_circular_bug+0x275/0x350 kernel/locking/lockdep.c:2079 check_noncircular+0x14c/0x170 kernel/locking/lockdep.c:2211 check_prev_add kernel/locking/lockdep.c:3166 [inline] check_prevs_add kernel/locking/lockdep.c:3285 [inline] validate_chain kernel/locking/lockdep.c:3909 [inline] __lock_acquire+0x1173/0x1ba0 kernel/locking/lockdep.c:5235 lock_acquire kernel/locking/lockdep.c:5866 [inline] lock_acquire+0x179/0x350 kernel/locking/lockdep.c:5823 __mutex_lock_common kernel/locking/mutex.c:601 [inline] __mutex_lock+0x199/0xb90 kernel/locking/mutex.c:746 queue_wb_lat_store+0x187/0x3d0 block/blk-sysfs.c:596 queue_attr_store+0x270/0x310 block/blk-sysfs.c:799 sysfs_kf_write+0xef/0x150 fs/sysfs/file.c:145 kernfs_fop_write_iter+0x351/0x510 fs/kernfs/file.c:334 new_sync_write fs/read_write.c:591 [inline] vfs_write+0x5ba/0x1180 fs/read_write.c:684 ksys_write+0x12a/0x240 fs/read_write.c:736 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x260 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f217454ee39 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f21744e8218 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f21745d8318 RCX: 00007f217454ee39 RDX: 00000000fffffdef RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007f21745d8310 R08: 00007ffee7802e27 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f21745a6004 R13: 0000200000000150 R14: 0000200000000140 R15: 00000000fffffdef