Extracting prog: 1m0.208318579s Minimizing prog: 15m47.025784413s Simplifying prog options: 0s Extracting C: 18.069163843s Simplifying C: 7m44.658649787s 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r5, 0x5, &(0x7f00000005c0)='fd', 0x0, r4) fsconfig$FSCONFIG_CMD_CREATE(r5, 0x6, 0x0, 0x0, 0x0) r6 = fsmount(r5, 0x0, 0x2) fchdir(r6) r7 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r7, r7) setpgid(0x0, r7) r8 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r8, &(0x7f0000000040)=0x4000921, 0x12) program crashed: possible deadlock in anon_pipe_prefill_and_lock single: successfully extracted reproducer found reproducer with 17 syscalls minimizing guilty program 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r5, 0x5, &(0x7f00000005c0)='fd', 0x0, r4) fsconfig$FSCONFIG_CMD_CREATE(r5, 0x6, 0x0, 0x0, 0x0) r6 = fsmount(r5, 0x0, 0x2) fchdir(r6) r7 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r7, r7) setpgid(0x0, r7) openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) program did not crash 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r5, 0x5, &(0x7f00000005c0)='fd', 0x0, r4) fsconfig$FSCONFIG_CMD_CREATE(r5, 0x6, 0x0, 0x0, 0x0) r6 = fsmount(r5, 0x0, 0x2) fchdir(r6) r7 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r7, r7) setpgid(0x0, r7) write$cgroup_int(0xffffffffffffffff, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r5, 0x5, &(0x7f00000005c0)='fd', 0x0, r4) fsconfig$FSCONFIG_CMD_CREATE(r5, 0x6, 0x0, 0x0, 0x0) r6 = fsmount(r5, 0x0, 0x2) fchdir(r6) r7 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r7, r7) r8 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r8, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r5, 0x5, &(0x7f00000005c0)='fd', 0x0, r4) fsconfig$FSCONFIG_CMD_CREATE(r5, 0x6, 0x0, 0x0, 0x0) r6 = fsmount(r5, 0x0, 0x2) fchdir(r6) r7 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(0x0, r7) r8 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r8, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r5, 0x5, &(0x7f00000005c0)='fd', 0x0, r4) fsconfig$FSCONFIG_CMD_CREATE(r5, 0x6, 0x0, 0x0, 0x0) r6 = fsmount(r5, 0x0, 0x2) fchdir(r6) setpgid(0x0, 0x0) setpgid(0x0, 0x0) r7 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r7, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r5, 0x5, &(0x7f00000005c0)='fd', 0x0, r4) fsconfig$FSCONFIG_CMD_CREATE(r5, 0x6, 0x0, 0x0, 0x0) fsmount(r5, 0x0, 0x2) r6 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r6, r6) setpgid(0x0, r6) r7 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r7, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r5, 0x5, &(0x7f00000005c0)='fd', 0x0, r4) fsconfig$FSCONFIG_CMD_CREATE(r5, 0x6, 0x0, 0x0, 0x0) fchdir(0xffffffffffffffff) r6 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r6, r6) setpgid(0x0, r6) r7 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r7, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r5, 0x5, &(0x7f00000005c0)='fd', 0x0, r4) r6 = fsmount(r5, 0x0, 0x2) fchdir(r6) r7 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r7, r7) setpgid(0x0, r7) r8 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r8, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)) r4 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_CMD_CREATE(r4, 0x6, 0x0, 0x0, 0x0) r5 = fsmount(r4, 0x0, 0x2) fchdir(r5) r6 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r6, r6) setpgid(0x0, r6) r7 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r7, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) fsconfig$FSCONFIG_SET_FD(0xffffffffffffffff, 0x5, &(0x7f00000005c0)='fd', 0x0, r4) fsconfig$FSCONFIG_CMD_CREATE(0xffffffffffffffff, 0x6, 0x0, 0x0, 0x0) r5 = fsmount(0xffffffffffffffff, 0x0, 0x2) fchdir(r5) r6 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r6, r6) setpgid(0x0, r6) r7 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r7, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) r4 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r4, 0x5, &(0x7f00000005c0)='fd', 0x0, 0xffffffffffffffff) fsconfig$FSCONFIG_CMD_CREATE(r4, 0x6, 0x0, 0x0, 0x0) r5 = fsmount(r4, 0x0, 0x2) fchdir(r5) r6 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r6, r6) setpgid(0x0, r6) r7 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r7, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r0, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r1 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) openat$cgroup_devices(r1, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r3 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r3, 0x5, &(0x7f00000005c0)='fd', 0x0, r2) fsconfig$FSCONFIG_CMD_CREATE(r3, 0x6, 0x0, 0x0, 0x0) r4 = fsmount(r3, 0x0, 0x2) fchdir(r4) r5 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r5, r5) setpgid(0x0, r5) r6 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r6, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) splice(r0, 0x0, 0xffffffffffffffff, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r3 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r3, 0x5, &(0x7f00000005c0)='fd', 0x0, r2) fsconfig$FSCONFIG_CMD_CREATE(r3, 0x6, 0x0, 0x0, 0x0) r4 = fsmount(r3, 0x0, 0x2) fchdir(r4) r5 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r5, r5) setpgid(0x0, r5) r6 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r6, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_devices(0xffffffffffffffff, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r2, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r4, 0x5, &(0x7f00000005c0)='fd', 0x0, r3) fsconfig$FSCONFIG_CMD_CREATE(r4, 0x6, 0x0, 0x0, 0x0) r5 = fsmount(r4, 0x0, 0x2) fchdir(r5) r6 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r6, r6) setpgid(0x0, r6) r7 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r7, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-write$cgroup_devices-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r5, 0x5, &(0x7f00000005c0)='fd', 0x0, r4) fsconfig$FSCONFIG_CMD_CREATE(r5, 0x6, 0x0, 0x0, 0x0) r6 = fsmount(r5, 0x0, 0x2) fchdir(r6) r7 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r7, r7) setpgid(0x0, r7) r8 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r8, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff}) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r1 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r2 = openat$cgroup_devices(r1, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r2, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r4 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r4, 0x5, &(0x7f00000005c0)='fd', 0x0, r3) fsconfig$FSCONFIG_CMD_CREATE(r4, 0x6, 0x0, 0x0, 0x0) r5 = fsmount(r4, 0x0, 0x2) fchdir(r5) r6 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r6, r6) setpgid(0x0, r6) r7 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r7, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: write$cgroup_devices(0xffffffffffffffff, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r1 = openat$cgroup_devices(r0, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(0xffffffffffffffff, 0x0, r1, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r3 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r3, 0x5, &(0x7f00000005c0)='fd', 0x0, r2) fsconfig$FSCONFIG_CMD_CREATE(r3, 0x6, 0x0, 0x0, 0x0) r4 = fsmount(r3, 0x0, 0x2) fchdir(r4) r5 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r5, r5) setpgid(0x0, r5) r6 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r6, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(0x0) write$cgroup_devices(0xffffffffffffffff, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r1 = openat$cgroup_devices(r0, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(0xffffffffffffffff, 0x0, r1, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r3 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r3, 0x5, &(0x7f00000005c0)='fd', 0x0, r2) fsconfig$FSCONFIG_CMD_CREATE(r3, 0x6, 0x0, 0x0, 0x0) r4 = fsmount(r3, 0x0, 0x2) fchdir(r4) r5 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r5, r5) setpgid(0x0, r5) r6 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r6, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, 0x0, 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r5, 0x5, &(0x7f00000005c0)='fd', 0x0, r4) fsconfig$FSCONFIG_CMD_CREATE(r5, 0x6, 0x0, 0x0, 0x0) r6 = fsmount(r5, 0x0, 0x2) fchdir(r6) r7 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r7, r7) setpgid(0x0, r7) r8 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r8, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, 0x0, 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r5, 0x5, &(0x7f00000005c0)='fd', 0x0, r4) fsconfig$FSCONFIG_CMD_CREATE(r5, 0x6, 0x0, 0x0, 0x0) r6 = fsmount(r5, 0x0, 0x2) fchdir(r6) r7 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r7, r7) setpgid(0x0, r7) r8 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r8, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r5, 0x5, &(0x7f00000005c0)='fd', 0x0, r4) fsconfig$FSCONFIG_CMD_CREATE(r5, 0x6, 0x0, 0x0, 0x0) r6 = fsmount(r5, 0x0, 0x2) fchdir(r6) r7 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r7, r7) setpgid(0x0, r7) r8 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r8, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, 0x0, 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r5, 0x5, &(0x7f00000005c0)='fd', 0x0, r4) fsconfig$FSCONFIG_CMD_CREATE(r5, 0x6, 0x0, 0x0, 0x0) r6 = fsmount(r5, 0x0, 0x2) fchdir(r6) r7 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r7, r7) setpgid(0x0, r7) r8 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r8, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(0x0) r4 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r4, 0x5, &(0x7f00000005c0)='fd', 0x0, 0xffffffffffffffff) fsconfig$FSCONFIG_CMD_CREATE(r4, 0x6, 0x0, 0x0, 0x0) r5 = fsmount(r4, 0x0, 0x2) fchdir(r5) r6 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r6, r6) setpgid(0x0, r6) r7 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r7, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = fsopen(0x0, 0x0) fsconfig$FSCONFIG_SET_FD(r5, 0x5, &(0x7f00000005c0)='fd', 0x0, r4) fsconfig$FSCONFIG_CMD_CREATE(r5, 0x6, 0x0, 0x0, 0x0) r6 = fsmount(r5, 0x0, 0x2) fchdir(r6) r7 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r7, r7) setpgid(0x0, r7) r8 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r8, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r5, 0x5, 0x0, 0x0, r4) fsconfig$FSCONFIG_CMD_CREATE(r5, 0x6, 0x0, 0x0, 0x0) r6 = fsmount(r5, 0x0, 0x2) fchdir(r6) r7 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r7, r7) setpgid(0x0, r7) r8 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r8, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r5, 0x5, &(0x7f00000005c0)='fd', 0x0, r4) fsconfig$FSCONFIG_CMD_CREATE(r5, 0x6, 0x0, 0x0, 0x0) r6 = fsmount(r5, 0x0, 0x2) fchdir(r6) r7 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r7, r7) setpgid(0x0, r7) r8 = openat$sysfs(0xffffffffffffff9c, 0x0, 0xa82, 0x0) write$cgroup_int(r8, &(0x7f0000000040)=0x4000921, 0x12) program did not crash 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r5, 0x5, &(0x7f00000005c0)='fd', 0x0, r4) fsconfig$FSCONFIG_CMD_CREATE(r5, 0x6, 0x0, 0x0, 0x0) r6 = fsmount(r5, 0x0, 0x2) fchdir(r6) r7 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r7, r7) setpgid(0x0, r7) r8 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r8, 0x0, 0x0) program did not crash extracting C reproducer testing compiled C 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int program crashed: possible deadlock in anon_pipe_prefill_and_lock simplifying C reproducer testing compiled C program (duration=30s, {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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int program crashed: possible deadlock in anon_pipe_prefill_and_lock testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int program did not crash testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int program crashed: possible deadlock in anon_pipe_prefill_and_lock testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int program did not crash testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int program crashed: possible deadlock in anon_pipe_prefill_and_lock testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int program crashed: possible deadlock in anon_pipe_prefill_and_lock testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int program crashed: possible deadlock in anon_pipe_prefill_and_lock testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int program did not crash testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int program crashed: possible deadlock in anon_pipe_prefill_and_lock testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int program crashed: possible deadlock in anon_pipe_prefill_and_lock testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false 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}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int program crashed: possible deadlock in anon_pipe_prefill_and_lock testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int program crashed: possible deadlock in anon_pipe_prefill_and_lock testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int program crashed: possible deadlock in anon_pipe_prefill_and_lock testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int program crashed: possible deadlock in anon_pipe_prefill_and_lock testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int program crashed: possible deadlock in anon_pipe_prefill_and_lock testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int program crashed: possible deadlock in anon_pipe_prefill_and_lock testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r5, 0x5, &(0x7f00000005c0)='fd', 0x0, r4) fsconfig$FSCONFIG_CMD_CREATE(r5, 0x6, 0x0, 0x0, 0x0) r6 = fsmount(r5, 0x0, 0x2) fchdir(r6) r7 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r7, r7) setpgid(0x0, r7) r8 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r8, &(0x7f0000000040)=0x4000921, 0x12) program crashed: possible deadlock in anon_pipe_prefill_and_lock validation run: crashed=true testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r5, 0x5, &(0x7f00000005c0)='fd', 0x0, r4) fsconfig$FSCONFIG_CMD_CREATE(r5, 0x6, 0x0, 0x0, 0x0) r6 = fsmount(r5, 0x0, 0x2) fchdir(r6) r7 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r7, r7) setpgid(0x0, r7) r8 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r8, &(0x7f0000000040)=0x4000921, 0x12) program crashed: possible deadlock in anon_pipe_prefill_and_lock validation run: crashed=true testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): pipe-write$cgroup_devices-mkdirat$cgroup_root-openat$cgroup_root-openat$cgroup_devices-splice-pipe-fsopen-fsconfig$FSCONFIG_SET_FD-fsconfig$FSCONFIG_CMD_CREATE-fsmount-fchdir-syz_clone-setpgid-setpgid-openat$sysfs-write$cgroup_int detailed listing: executing program 0: pipe(&(0x7f0000000100)={0xffffffffffffffff, 0xffffffffffffffff}) write$cgroup_devices(r1, &(0x7f0000000640)=ANY=[], 0x9) mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040)='./cgroup.net/syz0\x00', 0x1ff) r2 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000040), 0x200002, 0x0) r3 = openat$cgroup_devices(r2, &(0x7f00000001c0)='devices.deny\x00', 0x2, 0x0) splice(r0, 0x0, r3, 0x0, 0x1000a, 0x0) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = fsopen(&(0x7f0000000080)='autofs\x00', 0x0) fsconfig$FSCONFIG_SET_FD(r5, 0x5, &(0x7f00000005c0)='fd', 0x0, r4) fsconfig$FSCONFIG_CMD_CREATE(r5, 0x6, 0x0, 0x0, 0x0) r6 = fsmount(r5, 0x0, 0x2) fchdir(r6) r7 = syz_clone(0x300, 0x0, 0x0, 0x0, 0x0, 0x0) setpgid(r7, r7) setpgid(0x0, r7) r8 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0xa82, 0x0) write$cgroup_int(r8, &(0x7f0000000040)=0x4000921, 0x12) program crashed: possible deadlock in anon_pipe_prefill_and_lock validation run: crashed=true reproducing took 26m27.791905979s repro crashed as (corrupted=false): ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.0.17/5918 is trying to acquire lock: ffff8880376dd460 (&pipe->mutex){+.+.}-{4:4}, at: anon_pipe_prefill_and_lock+0x16c/0x580 fs/pipe.c:165 but task is already holding lock: ffff8880267fa938 (&sbi->pipe_mutex){+.+.}-{4:4}, at: autofs_write fs/autofs/waitq.c:55 [inline] ffff8880267fa938 (&sbi->pipe_mutex){+.+.}-{4:4}, at: autofs_notify_daemon+0x4f8/0xd90 fs/autofs/waitq.c:164 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&sbi->pipe_mutex){+.+.}-{4:4}: lock_acquire kernel/locking/lockdep.c:5942 [inline] lock_acquire+0x1d1/0x380 kernel/locking/lockdep.c:5899 __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1bd0 kernel/locking/mutex.c:821 autofs_write fs/autofs/waitq.c:55 [inline] autofs_notify_daemon+0x4f8/0xd90 fs/autofs/waitq.c:164 autofs_wait+0x10fd/0x1b50 fs/autofs/waitq.c:426 autofs_mount_wait+0x132/0x3b0 fs/autofs/root.c:256 autofs_d_automount+0x490/0x950 fs/autofs/root.c:410 follow_automount fs/namei.c:1565 [inline] __traverse_mounts+0x1b9/0x8a0 fs/namei.c:1618 traverse_mounts fs/namei.c:1647 [inline] handle_mounts fs/namei.c:1749 [inline] step_into_slowpath+0xcb4/0x1150 fs/namei.c:2131 step_into fs/namei.c:2181 [inline] walk_component fs/namei.c:2317 [inline] lookup_last fs/namei.c:2818 [inline] path_lookupat+0x58b/0xc40 fs/namei.c:2842 filename_lookup+0x202/0x590 fs/namei.c:2871 kern_path+0x37/0x50 fs/namei.c:3065 lookup_bdev+0xd8/0x2a0 block/bdev.c:1268 resume_store+0x1d6/0x460 kernel/power/hibernate.c:1280 kobj_attr_store+0x58/0x80 lib/kobject.c:842 sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:145 kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:345 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x6af/0x1050 fs/read_write.c:687 ksys_write+0x12a/0x250 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&of->mutex){+.+.}-{4:4}: lock_acquire kernel/locking/lockdep.c:5942 [inline] lock_acquire+0x1d1/0x380 kernel/locking/lockdep.c:5899 __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1bd0 kernel/locking/mutex.c:821 kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:336 iter_file_splice_write+0x830/0x10b0 fs/splice.c:736 do_splice_from fs/splice.c:936 [inline] do_splice+0x109c/0x1fa0 fs/splice.c:1349 __do_splice+0x33b/0x370 fs/splice.c:1431 __do_sys_splice fs/splice.c:1634 [inline] __se_sys_splice fs/splice.c:1616 [inline] __x64_sys_splice+0x187/0x250 fs/splice.c:1616 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (&pipe->mutex){+.+.}-{4:4}: check_prev_add+0xeb/0xe60 kernel/locking/lockdep.c:3209 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 __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1bd0 kernel/locking/mutex.c:821 anon_pipe_prefill_and_lock+0x16c/0x580 fs/pipe.c:165 anon_pipe_write+0x164/0x1b50 fs/pipe.c:534 __kernel_write_iter+0x6bb/0x930 fs/read_write.c:621 __kernel_write+0xf6/0x140 fs/read_write.c:641 autofs_write fs/autofs/waitq.c:57 [inline] autofs_notify_daemon+0x50d/0xd90 fs/autofs/waitq.c:164 autofs_wait+0x10fd/0x1b50 fs/autofs/waitq.c:426 autofs_mount_wait+0x132/0x3b0 fs/autofs/root.c:256 autofs_d_automount+0x490/0x950 fs/autofs/root.c:410 follow_automount fs/namei.c:1565 [inline] __traverse_mounts+0x1b9/0x8a0 fs/namei.c:1618 traverse_mounts fs/namei.c:1647 [inline] handle_mounts fs/namei.c:1749 [inline] step_into_slowpath+0xcb4/0x1150 fs/namei.c:2131 step_into fs/namei.c:2181 [inline] walk_component fs/namei.c:2317 [inline] lookup_last fs/namei.c:2818 [inline] path_lookupat+0x58b/0xc40 fs/namei.c:2842 filename_lookup+0x202/0x590 fs/namei.c:2871 kern_path+0x37/0x50 fs/namei.c:3065 lookup_bdev+0xd8/0x2a0 block/bdev.c:1268 resume_store+0x1d6/0x460 kernel/power/hibernate.c:1280 kobj_attr_store+0x58/0x80 lib/kobject.c:842 sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:145 kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:345 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x6af/0x1050 fs/read_write.c:687 ksys_write+0x12a/0x250 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Chain exists of: &pipe->mutex --> &of->mutex --> &sbi->pipe_mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&sbi->pipe_mutex); lock(&of->mutex); lock(&sbi->pipe_mutex); lock(&pipe->mutex); *** DEADLOCK *** locks held by syz.0.17/5918: 4, last CPU#3: #0: ffff88802751a460 (sb_writers#8){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:739 #1: ffff88805434b480 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:336 #2: ffff88801dfa0e18 (kn->active#67){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:73 [inline] #2: ffff88801dfa0e18 (kn->active#67){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:337 #3: ffff8880267fa938 (&sbi->pipe_mutex){+.+.}-{4:4}, at: autofs_write fs/autofs/waitq.c:55 [inline] #3: ffff8880267fa938 (&sbi->pipe_mutex){+.+.}-{4:4}, at: autofs_notify_daemon+0x4f8/0xd90 fs/autofs/waitq.c:164 stack backtrace: CPU: 3 UID: 0 PID: 5918 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120 print_circular_bug.cold+0x178/0x1be kernel/locking/lockdep.c:2087 check_noncircular+0x146/0x160 kernel/locking/lockdep.c:2219 check_prev_add+0xeb/0xe60 kernel/locking/lockdep.c:3209 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 __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1bd0 kernel/locking/mutex.c:821 anon_pipe_prefill_and_lock+0x16c/0x580 fs/pipe.c:165 anon_pipe_write+0x164/0x1b50 fs/pipe.c:534 __kernel_write_iter+0x6bb/0x930 fs/read_write.c:621 __kernel_write+0xf6/0x140 fs/read_write.c:641 autofs_write fs/autofs/waitq.c:57 [inline] autofs_notify_daemon+0x50d/0xd90 fs/autofs/waitq.c:164 autofs_wait+0x10fd/0x1b50 fs/autofs/waitq.c:426 autofs_mount_wait+0x132/0x3b0 fs/autofs/root.c:256 autofs_d_automount+0x490/0x950 fs/autofs/root.c:410 follow_automount fs/namei.c:1565 [inline] __traverse_mounts+0x1b9/0x8a0 fs/namei.c:1618 traverse_mounts fs/namei.c:1647 [inline] handle_mounts fs/namei.c:1749 [inline] step_into_slowpath+0xcb4/0x1150 fs/namei.c:2131 step_into fs/namei.c:2181 [inline] walk_component fs/namei.c:2317 [inline] lookup_last fs/namei.c:2818 [inline] path_lookupat+0x58b/0xc40 fs/namei.c:2842 filename_lookup+0x202/0x590 fs/namei.c:2871 kern_path+0x37/0x50 fs/namei.c:3065 lookup_bdev+0xd8/0x2a0 block/bdev.c:1268 resume_store+0x1d6/0x460 kernel/power/hibernate.c:1280 kobj_attr_store+0x58/0x80 lib/kobject.c:842 sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:145 kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:345 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x6af/0x1050 fs/read_write.c:687 ksys_write+0x12a/0x250 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fac2c79e559 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff29357a78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fac2ca25fa0 RCX: 00007fac2c79e559 RDX: 0000000000000012 RSI: 0000200000000040 RDI: 000000000000000b RBP: 00007fac2c8358b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fac2ca25fac R14: 00007fac2ca25fa0 R15: 00007fac2ca25fa0 PM: Image not found (code -6) final repro crashed as (corrupted=false): ====================================================== WARNING: possible circular locking dependency detected syzkaller #0 Not tainted ------------------------------------------------------ syz.0.17/5918 is trying to acquire lock: ffff8880376dd460 (&pipe->mutex){+.+.}-{4:4}, at: anon_pipe_prefill_and_lock+0x16c/0x580 fs/pipe.c:165 but task is already holding lock: ffff8880267fa938 (&sbi->pipe_mutex){+.+.}-{4:4}, at: autofs_write fs/autofs/waitq.c:55 [inline] ffff8880267fa938 (&sbi->pipe_mutex){+.+.}-{4:4}, at: autofs_notify_daemon+0x4f8/0xd90 fs/autofs/waitq.c:164 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (&sbi->pipe_mutex){+.+.}-{4:4}: lock_acquire kernel/locking/lockdep.c:5942 [inline] lock_acquire+0x1d1/0x380 kernel/locking/lockdep.c:5899 __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1bd0 kernel/locking/mutex.c:821 autofs_write fs/autofs/waitq.c:55 [inline] autofs_notify_daemon+0x4f8/0xd90 fs/autofs/waitq.c:164 autofs_wait+0x10fd/0x1b50 fs/autofs/waitq.c:426 autofs_mount_wait+0x132/0x3b0 fs/autofs/root.c:256 autofs_d_automount+0x490/0x950 fs/autofs/root.c:410 follow_automount fs/namei.c:1565 [inline] __traverse_mounts+0x1b9/0x8a0 fs/namei.c:1618 traverse_mounts fs/namei.c:1647 [inline] handle_mounts fs/namei.c:1749 [inline] step_into_slowpath+0xcb4/0x1150 fs/namei.c:2131 step_into fs/namei.c:2181 [inline] walk_component fs/namei.c:2317 [inline] lookup_last fs/namei.c:2818 [inline] path_lookupat+0x58b/0xc40 fs/namei.c:2842 filename_lookup+0x202/0x590 fs/namei.c:2871 kern_path+0x37/0x50 fs/namei.c:3065 lookup_bdev+0xd8/0x2a0 block/bdev.c:1268 resume_store+0x1d6/0x460 kernel/power/hibernate.c:1280 kobj_attr_store+0x58/0x80 lib/kobject.c:842 sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:145 kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:345 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x6af/0x1050 fs/read_write.c:687 ksys_write+0x12a/0x250 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&of->mutex){+.+.}-{4:4}: lock_acquire kernel/locking/lockdep.c:5942 [inline] lock_acquire+0x1d1/0x380 kernel/locking/lockdep.c:5899 __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1bd0 kernel/locking/mutex.c:821 kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:336 iter_file_splice_write+0x830/0x10b0 fs/splice.c:736 do_splice_from fs/splice.c:936 [inline] do_splice+0x109c/0x1fa0 fs/splice.c:1349 __do_splice+0x33b/0x370 fs/splice.c:1431 __do_sys_splice fs/splice.c:1634 [inline] __se_sys_splice fs/splice.c:1616 [inline] __x64_sys_splice+0x187/0x250 fs/splice.c:1616 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (&pipe->mutex){+.+.}-{4:4}: check_prev_add+0xeb/0xe60 kernel/locking/lockdep.c:3209 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 __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1bd0 kernel/locking/mutex.c:821 anon_pipe_prefill_and_lock+0x16c/0x580 fs/pipe.c:165 anon_pipe_write+0x164/0x1b50 fs/pipe.c:534 __kernel_write_iter+0x6bb/0x930 fs/read_write.c:621 __kernel_write+0xf6/0x140 fs/read_write.c:641 autofs_write fs/autofs/waitq.c:57 [inline] autofs_notify_daemon+0x50d/0xd90 fs/autofs/waitq.c:164 autofs_wait+0x10fd/0x1b50 fs/autofs/waitq.c:426 autofs_mount_wait+0x132/0x3b0 fs/autofs/root.c:256 autofs_d_automount+0x490/0x950 fs/autofs/root.c:410 follow_automount fs/namei.c:1565 [inline] __traverse_mounts+0x1b9/0x8a0 fs/namei.c:1618 traverse_mounts fs/namei.c:1647 [inline] handle_mounts fs/namei.c:1749 [inline] step_into_slowpath+0xcb4/0x1150 fs/namei.c:2131 step_into fs/namei.c:2181 [inline] walk_component fs/namei.c:2317 [inline] lookup_last fs/namei.c:2818 [inline] path_lookupat+0x58b/0xc40 fs/namei.c:2842 filename_lookup+0x202/0x590 fs/namei.c:2871 kern_path+0x37/0x50 fs/namei.c:3065 lookup_bdev+0xd8/0x2a0 block/bdev.c:1268 resume_store+0x1d6/0x460 kernel/power/hibernate.c:1280 kobj_attr_store+0x58/0x80 lib/kobject.c:842 sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:145 kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:345 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x6af/0x1050 fs/read_write.c:687 ksys_write+0x12a/0x250 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f other info that might help us debug this: Chain exists of: &pipe->mutex --> &of->mutex --> &sbi->pipe_mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&sbi->pipe_mutex); lock(&of->mutex); lock(&sbi->pipe_mutex); lock(&pipe->mutex); *** DEADLOCK *** locks held by syz.0.17/5918: 4, last CPU#3: #0: ffff88802751a460 (sb_writers#8){.+.+}-{0:0}, at: ksys_write+0x12a/0x250 fs/read_write.c:739 #1: ffff88805434b480 (&of->mutex){+.+.}-{4:4}, at: kernfs_fop_write_iter+0x2c2/0x5f0 fs/kernfs/file.c:336 #2: ffff88801dfa0e18 (kn->active#67){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:73 [inline] #2: ffff88801dfa0e18 (kn->active#67){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x332/0x5f0 fs/kernfs/file.c:337 #3: ffff8880267fa938 (&sbi->pipe_mutex){+.+.}-{4:4}, at: autofs_write fs/autofs/waitq.c:55 [inline] #3: ffff8880267fa938 (&sbi->pipe_mutex){+.+.}-{4:4}, at: autofs_notify_daemon+0x4f8/0xd90 fs/autofs/waitq.c:164 stack backtrace: CPU: 3 UID: 0 PID: 5918 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x100/0x190 lib/dump_stack.c:120 print_circular_bug.cold+0x178/0x1be kernel/locking/lockdep.c:2087 check_noncircular+0x146/0x160 kernel/locking/lockdep.c:2219 check_prev_add+0xeb/0xe60 kernel/locking/lockdep.c:3209 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 __mutex_lock_common kernel/locking/mutex.c:646 [inline] __mutex_lock+0x1a4/0x1bd0 kernel/locking/mutex.c:821 anon_pipe_prefill_and_lock+0x16c/0x580 fs/pipe.c:165 anon_pipe_write+0x164/0x1b50 fs/pipe.c:534 __kernel_write_iter+0x6bb/0x930 fs/read_write.c:621 __kernel_write+0xf6/0x140 fs/read_write.c:641 autofs_write fs/autofs/waitq.c:57 [inline] autofs_notify_daemon+0x50d/0xd90 fs/autofs/waitq.c:164 autofs_wait+0x10fd/0x1b50 fs/autofs/waitq.c:426 autofs_mount_wait+0x132/0x3b0 fs/autofs/root.c:256 autofs_d_automount+0x490/0x950 fs/autofs/root.c:410 follow_automount fs/namei.c:1565 [inline] __traverse_mounts+0x1b9/0x8a0 fs/namei.c:1618 traverse_mounts fs/namei.c:1647 [inline] handle_mounts fs/namei.c:1749 [inline] step_into_slowpath+0xcb4/0x1150 fs/namei.c:2131 step_into fs/namei.c:2181 [inline] walk_component fs/namei.c:2317 [inline] lookup_last fs/namei.c:2818 [inline] path_lookupat+0x58b/0xc40 fs/namei.c:2842 filename_lookup+0x202/0x590 fs/namei.c:2871 kern_path+0x37/0x50 fs/namei.c:3065 lookup_bdev+0xd8/0x2a0 block/bdev.c:1268 resume_store+0x1d6/0x460 kernel/power/hibernate.c:1280 kobj_attr_store+0x58/0x80 lib/kobject.c:842 sysfs_kf_write+0xf2/0x150 fs/sysfs/file.c:145 kernfs_fop_write_iter+0x3e0/0x5f0 fs/kernfs/file.c:345 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x6af/0x1050 fs/read_write.c:687 ksys_write+0x12a/0x250 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fac2c79e559 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fff29357a78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fac2ca25fa0 RCX: 00007fac2c79e559 RDX: 0000000000000012 RSI: 0000200000000040 RDI: 000000000000000b RBP: 00007fac2c8358b0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fac2ca25fac R14: 00007fac2ca25fa0 R15: 00007fac2ca25fa0 PM: Image not found (code -6)