Extracting prog: 6m20.624212585s Minimizing prog: 1h43m24.126007645s Simplifying prog options: 12m11.556138484s Extracting C: 5m6.06891024s Simplifying C: 0s 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}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-bpf$BPF_MAP_GET_FD_BY_ID-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill-setrlimit-mkdirat$cgroup_root-socket$nl_netfilter detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) bpf$BPF_MAP_GET_FD_BY_ID(0xe, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) setrlimit(0x0, 0x0) mkdirat$cgroup_root(0xffffffffffffff9c, 0x0, 0x1ff) socket$nl_netfilter(0x10, 0x3, 0xc) program did not crash single: failed to extract reproducer single: executing 1 programs separately with timeout 6m0s testing program (duration=6m0s, {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}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-bpf$BPF_MAP_GET_FD_BY_ID-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill-setrlimit-mkdirat$cgroup_root-socket$nl_netfilter detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) bpf$BPF_MAP_GET_FD_BY_ID(0xe, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) setrlimit(0x0, 0x0) mkdirat$cgroup_root(0xffffffffffffff9c, 0x0, 0x1ff) socket$nl_netfilter(0x10, 0x3, 0xc) program crashed: WARNING in print_bfs_bug single: successfully extracted reproducer found reproducer with 15 syscalls minimizing guilty program testing program (duration=6m0s, {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}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-bpf$BPF_MAP_GET_FD_BY_ID-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill-setrlimit-mkdirat$cgroup_root detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) bpf$BPF_MAP_GET_FD_BY_ID(0xe, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) setrlimit(0x0, 0x0) mkdirat$cgroup_root(0xffffffffffffff9c, 0x0, 0x1ff) program crashed: WARNING in print_bfs_bug testing program (duration=6m0s, {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}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-bpf$BPF_MAP_GET_FD_BY_ID-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill-setrlimit detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) bpf$BPF_MAP_GET_FD_BY_ID(0xe, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) setrlimit(0x0, 0x0) program crashed: WARNING in print_bfs_bug testing program (duration=6m0s, {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}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-bpf$BPF_MAP_GET_FD_BY_ID-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) bpf$BPF_MAP_GET_FD_BY_ID(0xe, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program crashed: WARNING in print_bfs_bug testing program (duration=6m0s, {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}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-bpf$BPF_MAP_GET_FD_BY_ID-gettid-fsconfig$FSCONFIG_CMD_CREATE detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) bpf$BPF_MAP_GET_FD_BY_ID(0xe, 0x0, 0x0) gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) program did not crash testing program (duration=6m0s, {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}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-bpf$BPF_MAP_GET_FD_BY_ID-gettid-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) bpf$BPF_MAP_GET_FD_BY_ID(0xe, 0x0, 0x0) r2 = gettid() tkill(r2, 0xb) program did not crash testing program (duration=6m0s, {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}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-bpf$BPF_MAP_GET_FD_BY_ID-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) bpf$BPF_MAP_GET_FD_BY_ID(0xe, 0x0, 0x0) fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(0x0, 0xb) program did not crash testing program (duration=6m0s, {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}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program crashed: WARNING in print_bfs_bug testing program (duration=6m0s, {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}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program did not crash testing program (duration=6m0s, {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}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$BPF_GET_MAP_INFO-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program did not crash testing program (duration=6m0s, {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}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program did not crash testing program (duration=6m0s, {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}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) fsconfig$FSCONFIG_SET_STRING(0xffffffffffffffff, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) r1 = gettid() fsconfig$FSCONFIG_CMD_CREATE(0xffffffffffffffff, 0x6, 0x0, 0x0, 0x0) tkill(r1, 0xb) program did not crash testing program (duration=6m0s, {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}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program crashed: WARNING in print_bfs_bug testing program (duration=6m0s, {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}}): socket$inet6_tcp-setsockopt$sock_int-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program did not crash testing program (duration=6m0s, {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}}): socket$inet6_tcp-bind$inet6-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) bind$inet6(r0, 0x0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program did not crash testing program (duration=6m0s, {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}}): setsockopt$sock_int-bind$inet6-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: setsockopt$sock_int(0xffffffffffffffff, 0x1, 0xf, 0x0, 0x0) bind$inet6(0xffffffffffffffff, 0x0, 0x0) r0 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r0, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) r1 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0) tkill(r1, 0xb) program did not crash testing program (duration=6m0s, {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}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) r1 = fsopen(0x0, 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program did not crash testing program (duration=6m0s, {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}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, 0x0, &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program did not crash testing program (duration=6m0s, {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}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', 0x0, 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program did not crash extracting C reproducer testing compiled C program (duration=6m0s, {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}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill program crashed: no output from test machine a never seen crash title: no output from test machine, ignore simplifying guilty program options testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program did not crash validation run: crashed=false testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program crashed: WARNING in print_bfs_bug validation run: crashed=true testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program crashed: WARNING in print_bfs_bug validation run: crashed=true testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6_tcp-setsockopt$sock_int-bind$inet6-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program crashed: WARNING in print_bfs_bug validation run: crashed=true reproducing took 2h30m0.515266983s repro crashed as (corrupted=false): Increase LOCKDEP_CIRCULAR_QUEUE_BITS to avoid this warning: ------------[ cut here ]------------ lockdep bfs error:-1 WARNING: kernel/locking/lockdep.c:2103 at print_bfs_bug+0x7f/0xf0 kernel/locking/lockdep.c:2103, CPU#2: syz.1.9138/20265 Modules linked in: CPU: 2 UID: 0 PID: 20265 Comm: syz.1.9138 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 RIP: 0010:print_bfs_bug+0x81/0xf0 kernel/locking/lockdep.c:2103 Code: 09 48 c7 c7 b0 8e 48 8e e8 2c 0a ea 09 65 ff 0d 4d 76 a6 12 85 ed 74 17 83 fb ff 0f 84 00 7a 3b ff 48 8d 3d a1 4c 62 0f 89 de <67> 48 0f b9 3a 5b 5d c3 cc cc cc cc 90 e8 9d b5 3f 03 85 c0 74 1d RSP: 0000:ffffc9000c56f228 EFLAGS: 00010086 RAX: 000000000000003b RBX: 00000000ffffffff RCX: 0000000000000000 RDX: 000000000000003b RSI: 00000000ffffffff RDI: ffffffff9148cd40 RBP: 0000000000000001 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000001 R12: ffffc9000c56f2a0 R13: ffff888013f1b1a8 R14: ffffc9000c56f2e0 R15: ffff888013f1b180 FS: 0000000000000000(0000) GS:ffff888096b55000(0063) knlGS:00000000f6815b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f7f0a190 CR3: 000000006d6ef000 CR4: 0000000000352ef0 Call Trace: check_irq_usage+0x32b/0x8b0 kernel/locking/lockdep.c:2860 check_prev_add+0xfe/0xe60 kernel/locking/lockdep.c:3213 check_prevs_add kernel/locking/lockdep.c:3328 [inline] validate_chain kernel/locking/lockdep.c:3952 [inline] __lock_acquire+0x1528/0x1f40 kernel/locking/lockdep.c:5288 lock_acquire kernel/locking/lockdep.c:5942 [inline] lock_acquire+0x1d1/0x380 kernel/locking/lockdep.c:5899 seqcount_lockdep_reader_access include/linux/seqlock.h:73 [inline] ktime_expiry_to_cycles+0x9b/0x2c0 kernel/time/timekeeping.c:941 clockevent_set_next_coupled kernel/time/clockevents.c:314 [inline] clockevents_program_event+0x1bf/0x820 kernel/time/clockevents.c:360 tick_program_event+0xa9/0x140 kernel/time/tick-oneshot.c:48 hrtimer_rearm_event kernel/time/hrtimer.c:710 [inline] hrtimer_rearm kernel/time/hrtimer.c:2176 [inline] __hrtimer_rearm_deferred+0x234/0x7b0 kernel/time/hrtimer.c:2196 hrtimer_rearm_deferred_tif include/linux/hrtimer_rearm.h:58 [inline] hrtimer_rearm_deferred include/linux/hrtimer_rearm.h:67 [inline] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:505 [inline] irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:542 [inline] irqentry_exit+0x5f3/0xa10 kernel/entry/common.c:167 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:preempt_schedule_irq+0x49/0x90 kernel/sched/core.c:7606 Code: 00 00 00 fc ff df 48 89 eb 48 c1 eb 03 48 01 d3 f6 c4 02 75 47 bf 01 00 00 00 e8 e2 d4 04 f6 e8 4d 43 42 f6 fb bf 01 00 00 00 d2 8f ff ff 9c 58 fa f6 c4 02 75 1e bf 01 00 00 00 e8 d0 74 04 RSP: 0000:ffffc9000c56f7a8 EFLAGS: 00000206 RAX: 000000000000060f RBX: ffffed10027e34b0 RCX: 0000000000000040 RDX: 0000000000000001 RSI: ffffffff8e392125 RDI: 0000000000000001 RBP: ffff888013f1a580 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 irqentry_exit_to_kernel_mode_preempt include/linux/irq-entry-common.h:468 [inline] irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline] irqentry_exit+0x205/0xa10 kernel/entry/common.c:167 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:679 RIP: 0010:lock_acquire+0x5e/0x380 kernel/locking/lockdep.c:5947 Code: 05 8f c2 a5 12 83 f8 07 0f 87 da 00 00 00 48 0f a3 05 9e 99 5e 0f 0f 82 c9 02 00 00 8b 35 1e cb 5e 0f 85 f6 0f 85 c7 00 00 00 <48> 8b 44 24 30 65 48 2b 05 2d c2 a5 12 0f 85 09 03 00 00 48 83 c4 RSP: 0000:ffffc9000c56f8b8 EFLAGS: 00000206 RAX: 0000000000000046 RBX: 0000000000000000 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff8e36bcb0 RDI: ffffffff8c623f80 RBP: ffff8880699c8140 R08: 00000000002dfb28 R09: ffffffff976e2010 R10: 0000000000000200 R11: 000000000000001f R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000 touch_wq_lockdep_map+0xad/0x1c0 kernel/workqueue.c:4111 __flush_workqueue+0x131/0x1200 kernel/workqueue.c:4153 drain_workqueue+0x175/0x3b0 kernel/workqueue.c:4317 destroy_workqueue+0xc3/0xa30 kernel/workqueue.c:6155 ceph_osdc_stop+0x46/0x4f0 net/ceph/osd_client.c:5275 ceph_destroy_client+0x74/0x160 net/ceph/ceph_common.c:768 destroy_fs_client+0x1e4/0x3b0 fs/ceph/super.c:910 ceph_kill_sb+0x2ec/0x9d0 fs/ceph/super.c:1612 deactivate_locked_super+0xbd/0x130 fs/super.c:586 ceph_get_tree+0x1534/0x1fd0 fs/ceph/super.c:1380 vfs_get_tree+0x92/0x320 fs/super.c:1932 vfs_cmd_create+0xd7/0x2a0 fs/fsopen.c:231 vfs_fsconfig_locked fs/fsopen.c:295 [inline] __do_sys_fsconfig+0x55a/0xcb0 fs/fsopen.c:463 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline] __do_fast_syscall_32+0x13a/0x8b0 arch/x86/entry/syscall_32.c:291 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:316 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf701efec Code: Unable to access opcode bytes at 0xf701efc2. RSP: 002b:00000000f681550c EFLAGS: 00000292 ORIG_RAX: 00000000000001af RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000000006 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 48 c7 c7 b0 8e 48 8e mov $0xffffffff8e488eb0,%rdi 7: e8 2c 0a ea 09 call 0x9ea0a38 c: 65 ff 0d 4d 76 a6 12 decl %gs:0x12a6764d(%rip) # 0x12a67660 13: 85 ed test %ebp,%ebp 15: 74 17 je 0x2e 17: 83 fb ff cmp $0xffffffff,%ebx 1a: 0f 84 00 7a 3b ff je 0xff3b7a20 20: 48 8d 3d a1 4c 62 0f lea 0xf624ca1(%rip),%rdi # 0xf624cc8 27: 89 de mov %ebx,%esi * 29: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2e: 5b pop %rbx 2f: 5d pop %rbp 30: c3 ret 31: cc int3 32: cc int3 33: cc int3 34: cc int3 35: 90 nop 36: e8 9d b5 3f 03 call 0x33fb5d8 3b: 85 c0 test %eax,%eax 3d: 74 1d je 0x5c final repro crashed as (corrupted=false): Increase LOCKDEP_CIRCULAR_QUEUE_BITS to avoid this warning: ------------[ cut here ]------------ lockdep bfs error:-1 WARNING: kernel/locking/lockdep.c:2103 at print_bfs_bug+0x7f/0xf0 kernel/locking/lockdep.c:2103, CPU#2: syz.1.9138/20265 Modules linked in: CPU: 2 UID: 0 PID: 20265 Comm: syz.1.9138 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 RIP: 0010:print_bfs_bug+0x81/0xf0 kernel/locking/lockdep.c:2103 Code: 09 48 c7 c7 b0 8e 48 8e e8 2c 0a ea 09 65 ff 0d 4d 76 a6 12 85 ed 74 17 83 fb ff 0f 84 00 7a 3b ff 48 8d 3d a1 4c 62 0f 89 de <67> 48 0f b9 3a 5b 5d c3 cc cc cc cc 90 e8 9d b5 3f 03 85 c0 74 1d RSP: 0000:ffffc9000c56f228 EFLAGS: 00010086 RAX: 000000000000003b RBX: 00000000ffffffff RCX: 0000000000000000 RDX: 000000000000003b RSI: 00000000ffffffff RDI: ffffffff9148cd40 RBP: 0000000000000001 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000001 R12: ffffc9000c56f2a0 R13: ffff888013f1b1a8 R14: ffffc9000c56f2e0 R15: ffff888013f1b180 FS: 0000000000000000(0000) GS:ffff888096b55000(0063) knlGS:00000000f6815b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f7f0a190 CR3: 000000006d6ef000 CR4: 0000000000352ef0 Call Trace: check_irq_usage+0x32b/0x8b0 kernel/locking/lockdep.c:2860 check_prev_add+0xfe/0xe60 kernel/locking/lockdep.c:3213 check_prevs_add kernel/locking/lockdep.c:3328 [inline] validate_chain kernel/locking/lockdep.c:3952 [inline] __lock_acquire+0x1528/0x1f40 kernel/locking/lockdep.c:5288 lock_acquire kernel/locking/lockdep.c:5942 [inline] lock_acquire+0x1d1/0x380 kernel/locking/lockdep.c:5899 seqcount_lockdep_reader_access include/linux/seqlock.h:73 [inline] ktime_expiry_to_cycles+0x9b/0x2c0 kernel/time/timekeeping.c:941 clockevent_set_next_coupled kernel/time/clockevents.c:314 [inline] clockevents_program_event+0x1bf/0x820 kernel/time/clockevents.c:360 tick_program_event+0xa9/0x140 kernel/time/tick-oneshot.c:48 hrtimer_rearm_event kernel/time/hrtimer.c:710 [inline] hrtimer_rearm kernel/time/hrtimer.c:2176 [inline] __hrtimer_rearm_deferred+0x234/0x7b0 kernel/time/hrtimer.c:2196 hrtimer_rearm_deferred_tif include/linux/hrtimer_rearm.h:58 [inline] hrtimer_rearm_deferred include/linux/hrtimer_rearm.h:67 [inline] irqentry_exit_to_kernel_mode_after_preempt include/linux/irq-entry-common.h:505 [inline] irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:542 [inline] irqentry_exit+0x5f3/0xa10 kernel/entry/common.c:167 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:preempt_schedule_irq+0x49/0x90 kernel/sched/core.c:7606 Code: 00 00 00 fc ff df 48 89 eb 48 c1 eb 03 48 01 d3 f6 c4 02 75 47 bf 01 00 00 00 e8 e2 d4 04 f6 e8 4d 43 42 f6 fb bf 01 00 00 00 d2 8f ff ff 9c 58 fa f6 c4 02 75 1e bf 01 00 00 00 e8 d0 74 04 RSP: 0000:ffffc9000c56f7a8 EFLAGS: 00000206 RAX: 000000000000060f RBX: ffffed10027e34b0 RCX: 0000000000000040 RDX: 0000000000000001 RSI: ffffffff8e392125 RDI: 0000000000000001 RBP: ffff888013f1a580 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 irqentry_exit_to_kernel_mode_preempt include/linux/irq-entry-common.h:468 [inline] irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline] irqentry_exit+0x205/0xa10 kernel/entry/common.c:167 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:679 RIP: 0010:lock_acquire+0x5e/0x380 kernel/locking/lockdep.c:5947 Code: 05 8f c2 a5 12 83 f8 07 0f 87 da 00 00 00 48 0f a3 05 9e 99 5e 0f 0f 82 c9 02 00 00 8b 35 1e cb 5e 0f 85 f6 0f 85 c7 00 00 00 <48> 8b 44 24 30 65 48 2b 05 2d c2 a5 12 0f 85 09 03 00 00 48 83 c4 RSP: 0000:ffffc9000c56f8b8 EFLAGS: 00000206 RAX: 0000000000000046 RBX: 0000000000000000 RCX: 0000000000000001 RDX: 0000000000000000 RSI: ffffffff8e36bcb0 RDI: ffffffff8c623f80 RBP: ffff8880699c8140 R08: 00000000002dfb28 R09: ffffffff976e2010 R10: 0000000000000200 R11: 000000000000001f R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000000 touch_wq_lockdep_map+0xad/0x1c0 kernel/workqueue.c:4111 __flush_workqueue+0x131/0x1200 kernel/workqueue.c:4153 drain_workqueue+0x175/0x3b0 kernel/workqueue.c:4317 destroy_workqueue+0xc3/0xa30 kernel/workqueue.c:6155 ceph_osdc_stop+0x46/0x4f0 net/ceph/osd_client.c:5275 ceph_destroy_client+0x74/0x160 net/ceph/ceph_common.c:768 destroy_fs_client+0x1e4/0x3b0 fs/ceph/super.c:910 ceph_kill_sb+0x2ec/0x9d0 fs/ceph/super.c:1612 deactivate_locked_super+0xbd/0x130 fs/super.c:586 ceph_get_tree+0x1534/0x1fd0 fs/ceph/super.c:1380 vfs_get_tree+0x92/0x320 fs/super.c:1932 vfs_cmd_create+0xd7/0x2a0 fs/fsopen.c:231 vfs_fsconfig_locked fs/fsopen.c:295 [inline] __do_sys_fsconfig+0x55a/0xcb0 fs/fsopen.c:463 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:79 [inline] __do_fast_syscall_32+0x13a/0x8b0 arch/x86/entry/syscall_32.c:291 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:316 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf701efec Code: Unable to access opcode bytes at 0xf701efc2. RSP: 002b:00000000f681550c EFLAGS: 00000292 ORIG_RAX: 00000000000001af RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000000006 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 48 c7 c7 b0 8e 48 8e mov $0xffffffff8e488eb0,%rdi 7: e8 2c 0a ea 09 call 0x9ea0a38 c: 65 ff 0d 4d 76 a6 12 decl %gs:0x12a6764d(%rip) # 0x12a67660 13: 85 ed test %ebp,%ebp 15: 74 17 je 0x2e 17: 83 fb ff cmp $0xffffffff,%ebx 1a: 0f 84 00 7a 3b ff je 0xff3b7a20 20: 48 8d 3d a1 4c 62 0f lea 0xf624ca1(%rip),%rdi # 0xf624cc8 27: 89 de mov %ebx,%esi * 29: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2e: 5b pop %rbx 2f: 5d pop %rbp 30: c3 ret 31: cc int3 32: cc int3 33: cc int3 34: cc int3 35: 90 nop 36: e8 9d b5 3f 03 call 0x33fb5d8 3b: 85 c0 test %eax,%eax 3d: 74 1d je 0x5c