Extracting prog: 6m29.420168772s Minimizing prog: 1h55m42.347671509s Simplifying prog options: 0s Extracting C: 3m14.278870423s Simplifying C: 1h1m52.634911417s 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:5 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}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-openat$cgroup_ro-write$binfmt_script-mmap-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd detailed listing: executing program 0: sync() syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) pipe2$9p(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff018010000800395032303030"], 0x15) r2 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) write$binfmt_script(r2, 0x0, 0x0) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x200000a, 0x13, r2, 0x0) r3 = dup(r1) write$FUSE_BMAP(r3, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_DIRENTPLUS(r3, &(0x7f0000000380)=ANY=[@ANYBLOB="fd05"], 0x138) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0), 0x11, &(0x7f0000000200)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x0}) program did not crash program did not crash single: failed to extract reproducer single: executing 1 programs separately with timeout 6m0s testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-openat$cgroup_ro-write$binfmt_script-mmap-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd detailed listing: executing program 0: sync() syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) pipe2$9p(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff018010000800395032303030"], 0x15) r2 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) write$binfmt_script(r2, 0x0, 0x0) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x200000a, 0x13, r2, 0x0) r3 = dup(r1) write$FUSE_BMAP(r3, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_DIRENTPLUS(r3, &(0x7f0000000380)=ANY=[@ANYBLOB="fd05"], 0x138) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0), 0x11, &(0x7f0000000200)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x0}) program crashed: INFO: task hung in iterate_supers single: successfully extracted reproducer found reproducer with 11 syscalls minimizing guilty program testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-openat$cgroup_ro-write$binfmt_script-mmap-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS detailed listing: executing program 0: sync() syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) pipe2$9p(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r0, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff018010000800395032303030"], 0x15) r1 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) write$binfmt_script(r1, 0x0, 0x0) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x200000a, 0x13, r1, 0x0) r2 = dup(r0) write$FUSE_BMAP(r2, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_DIRENTPLUS(r2, &(0x7f0000000380)=ANY=[@ANYBLOB="fd05"], 0x138) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-openat$cgroup_ro-write$binfmt_script-mmap-dup-write$FUSE_BMAP-mount$9p_fd detailed listing: executing program 0: sync() syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) pipe2$9p(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff018010000800395032303030"], 0x15) r2 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) write$binfmt_script(r2, 0x0, 0x0) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x200000a, 0x13, r2, 0x0) r3 = dup(r1) write$FUSE_BMAP(r3, &(0x7f0000000100)={0x18}, 0x18) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0), 0x11, &(0x7f0000000200)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x0}) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-openat$cgroup_ro-write$binfmt_script-mmap-dup-write$FUSE_DIRENTPLUS-mount$9p_fd detailed listing: executing program 0: sync() syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) pipe2$9p(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff018010000800395032303030"], 0x15) r2 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) write$binfmt_script(r2, 0x0, 0x0) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x200000a, 0x13, r2, 0x0) r3 = dup(r1) write$FUSE_DIRENTPLUS(r3, &(0x7f0000000380)=ANY=[@ANYBLOB="fd05"], 0x138) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0), 0x11, &(0x7f0000000200)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x0}) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-openat$cgroup_ro-write$binfmt_script-mmap-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd detailed listing: executing program 0: sync() syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) pipe2$9p(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff018010000800395032303030"], 0x15) r2 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) write$binfmt_script(r2, 0x0, 0x0) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x200000a, 0x13, r2, 0x0) write$FUSE_BMAP(0xffffffffffffffff, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_DIRENTPLUS(0xffffffffffffffff, &(0x7f0000000380)=ANY=[@ANYBLOB="fd05"], 0x138) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0), 0x11, &(0x7f0000000200)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x0}) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-openat$cgroup_ro-write$binfmt_script-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd detailed listing: executing program 0: sync() syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) pipe2$9p(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff018010000800395032303030"], 0x15) r2 = openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) write$binfmt_script(r2, 0x0, 0x0) r3 = dup(r1) write$FUSE_BMAP(r3, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_DIRENTPLUS(r3, &(0x7f0000000380)=ANY=[@ANYBLOB="fd05"], 0x138) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0), 0x11, &(0x7f0000000200)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x0}) program crashed: INFO: task hung in iterate_supers testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-openat$cgroup_ro-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd detailed listing: executing program 0: sync() syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) pipe2$9p(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff018010000800395032303030"], 0x15) openat$cgroup_ro(0xffffffffffffff9c, 0x0, 0x275a, 0x0) r2 = dup(r1) write$FUSE_BMAP(r2, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_DIRENTPLUS(r2, &(0x7f0000000380)=ANY=[@ANYBLOB="fd05"], 0x138) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0), 0x11, &(0x7f0000000200)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x0}) program crashed: INFO: task hung in iterate_supers testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd detailed listing: executing program 0: sync() syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) pipe2$9p(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff018010000800395032303030"], 0x15) r2 = dup(r1) write$FUSE_BMAP(r2, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_DIRENTPLUS(r2, &(0x7f0000000380)=ANY=[@ANYBLOB="fd05"], 0x138) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0), 0x11, &(0x7f0000000200)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x0}) program crashed: INFO: task hung in iterate_supers testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd detailed listing: executing program 0: sync() syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) pipe2$9p(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) r2 = dup(r1) write$FUSE_BMAP(r2, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_DIRENTPLUS(r2, &(0x7f0000000380)=ANY=[@ANYBLOB="fd05"], 0x138) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0), 0x11, &(0x7f0000000200)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x0}) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd detailed listing: executing program 0: sync() syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) write$P9_RVERSION(0xffffffffffffffff, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff018010000800395032303030"], 0x15) r0 = dup(0xffffffffffffffff) write$FUSE_BMAP(r0, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_DIRENTPLUS(r0, &(0x7f0000000380)=ANY=[@ANYBLOB="fd05"], 0x138) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0), 0x11, &(0x7f0000000200)={'trans=fd,', {}, 0x2c, {}, 0x0}) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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}}): sync-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd detailed listing: executing program 0: sync() pipe2$9p(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff018010000800395032303030"], 0x15) r2 = dup(r1) write$FUSE_BMAP(r2, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_DIRENTPLUS(r2, &(0x7f0000000380)=ANY=[@ANYBLOB="fd05"], 0x138) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0), 0x11, &(0x7f0000000200)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x0}) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd detailed listing: executing program 0: syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) pipe2$9p(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff018010000800395032303030"], 0x15) r2 = dup(r1) write$FUSE_BMAP(r2, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_DIRENTPLUS(r2, &(0x7f0000000380)=ANY=[@ANYBLOB="fd05"], 0x138) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0), 0x11, &(0x7f0000000200)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x0}) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd detailed listing: executing program 0: sync() syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) pipe2$9p(0x0, 0x0) write$P9_RVERSION(0xffffffffffffffff, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff018010000800395032303030"], 0x15) r0 = dup(0xffffffffffffffff) write$FUSE_BMAP(r0, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_DIRENTPLUS(r0, &(0x7f0000000380)=ANY=[@ANYBLOB="fd05"], 0x138) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0), 0x11, &(0x7f0000000200)={'trans=fd,', {}, 0x2c, {}, 0x0}) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd detailed listing: executing program 0: sync() syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) pipe2$9p(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r1, 0x0, 0x15) r2 = dup(r1) write$FUSE_BMAP(r2, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_DIRENTPLUS(r2, &(0x7f0000000380)=ANY=[@ANYBLOB="fd05"], 0x138) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0), 0x11, &(0x7f0000000200)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x0}) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd detailed listing: executing program 0: sync() syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) pipe2$9p(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB], 0x15) r2 = dup(r1) write$FUSE_BMAP(r2, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_DIRENTPLUS(r2, &(0x7f0000000380)=ANY=[@ANYBLOB="fd05"], 0x138) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0), 0x11, &(0x7f0000000200)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x0}) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd detailed listing: executing program 0: sync() syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) pipe2$9p(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff018010000800395032303030"], 0x15) r2 = dup(r1) write$FUSE_BMAP(r2, 0x0, 0x0) write$FUSE_DIRENTPLUS(r2, &(0x7f0000000380)=ANY=[@ANYBLOB="fd05"], 0x138) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0), 0x11, &(0x7f0000000200)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x0}) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd detailed listing: executing program 0: sync() syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) pipe2$9p(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff018010000800395032303030"], 0x15) r2 = dup(r1) write$FUSE_BMAP(r2, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_DIRENTPLUS(r2, 0x0, 0x138) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0), 0x11, &(0x7f0000000200)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x0}) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd detailed listing: executing program 0: sync() syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) pipe2$9p(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff018010000800395032303030"], 0x15) r2 = dup(r1) write$FUSE_BMAP(r2, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_DIRENTPLUS(r2, &(0x7f0000000380)=ANY=[@ANYBLOB], 0x138) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0), 0x11, &(0x7f0000000200)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x0}) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd detailed listing: executing program 0: sync() syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) pipe2$9p(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff018010000800395032303030"], 0x15) r2 = dup(r1) write$FUSE_BMAP(r2, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_DIRENTPLUS(r2, &(0x7f0000000380)=ANY=[@ANYBLOB="fd05"], 0x138) mount$9p_fd(0x0, 0x0, &(0x7f00000000c0), 0x11, &(0x7f0000000200)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x0}) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd detailed listing: executing program 0: sync() syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) pipe2$9p(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff018010000800395032303030"], 0x15) r2 = dup(r1) write$FUSE_BMAP(r2, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_DIRENTPLUS(r2, &(0x7f0000000380)=ANY=[@ANYBLOB="fd05"], 0x138) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', 0x0, 0x11, &(0x7f0000000200)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x0}) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd detailed listing: executing program 0: sync() syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) pipe2$9p(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r0, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff018010000800395032303030"], 0x15) r1 = dup(r0) write$FUSE_BMAP(r1, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_DIRENTPLUS(r1, &(0x7f0000000380)=ANY=[@ANYBLOB="fd05"], 0x138) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0), 0x11, 0x0) program did not crash extracting C reproducer testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd program crashed: INFO: task hung in iterate_supers simplifying C reproducer testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd program crashed: INFO: task hung in iterate_supers testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd program crashed: INFO: task hung in iterate_supers testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd program crashed: INFO: task hung in iterate_supers testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd program crashed: INFO: task hung in iterate_supers testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd program crashed: INFO: task hung in iterate_supers testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd program crashed: INFO: task hung in iterate_supers testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd program crashed: INFO: task hung in iterate_supers testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd program crashed: no output from test machine a never seen crash title: no output from test machine, ignore testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd program crashed: INFO: task hung in iterate_supers testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd program crashed: INFO: task hung in iterate_supers testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd detailed listing: executing program 0: sync() syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) pipe2$9p(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff018010000800395032303030"], 0x15) r2 = dup(r1) write$FUSE_BMAP(r2, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_DIRENTPLUS(r2, &(0x7f0000000380)=ANY=[@ANYBLOB="fd05"], 0x138) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0), 0x11, &(0x7f0000000200)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x0}) program crashed: INFO: task hung in iterate_supers validation run: crashed=true testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd detailed listing: executing program 0: sync() syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) pipe2$9p(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff018010000800395032303030"], 0x15) r2 = dup(r1) write$FUSE_BMAP(r2, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_DIRENTPLUS(r2, &(0x7f0000000380)=ANY=[@ANYBLOB="fd05"], 0x138) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0), 0x11, &(0x7f0000000200)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x0}) program crashed: INFO: task hung in iterate_supers validation run: crashed=true testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sync-syz_mount_image$vfat-pipe2$9p-write$P9_RVERSION-dup-write$FUSE_BMAP-write$FUSE_DIRENTPLUS-mount$9p_fd detailed listing: executing program 0: sync() syz_mount_image$vfat(0x0, &(0x7f0000000100)='./file0\x00', 0xc3464, 0x0, 0x0, 0x0, &(0x7f0000000000)) pipe2$9p(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) write$P9_RVERSION(r1, &(0x7f0000000080)=ANY=[@ANYBLOB="1500000065ffff018010000800395032303030"], 0x15) r2 = dup(r1) write$FUSE_BMAP(r2, &(0x7f0000000100)={0x18}, 0x18) write$FUSE_DIRENTPLUS(r2, &(0x7f0000000380)=ANY=[@ANYBLOB="fd05"], 0x138) mount$9p_fd(0x0, &(0x7f0000000000)='./file0\x00', &(0x7f00000000c0), 0x11, &(0x7f0000000200)={'trans=fd,', {'rfdno', 0x3d, r0}, 0x2c, {'wfdno', 0x3d, r1}, 0x0}) program crashed: INFO: task hung in iterate_supers validation run: crashed=true reproducing took 3h16m55.651226953s repro crashed as (corrupted=false): INFO: task syz.3.20:4526 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.20 state:D stack:26688 pid:4526 ppid:4404 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0x10ec/0x40b0 kernel/sched/core.c:6561 schedule+0xb9/0x180 kernel/sched/core.c:6637 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6696 rwsem_down_read_slowpath+0x4f4/0x840 kernel/locking/rwsem.c:1094 __down_read_common kernel/locking/rwsem.c:1261 [inline] __down_read kernel/locking/rwsem.c:1274 [inline] down_read+0x94/0x2d0 kernel/locking/rwsem.c:1522 iterate_supers+0xa4/0x1d0 fs/super.c:755 ksys_sync+0x91/0x150 fs/sync.c:102 __ia32_sys_sync+0xa/0x10 fs/sync.c:113 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f638678f749 RSP: 002b:00007ffeed155f48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f63869e5fa0 RCX: 00007f638678f749 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f63869e5fa0 R14: 00007f63869e5fa0 R15: 0000000000000000 INFO: task syz.4.21:4527 blocked for more than 144 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.4.21 state:D stack:26688 pid:4527 ppid:4412 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0x10ec/0x40b0 kernel/sched/core.c:6561 schedule+0xb9/0x180 kernel/sched/core.c:6637 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6696 rwsem_down_read_slowpath+0x4f4/0x840 kernel/locking/rwsem.c:1094 __down_read_common kernel/locking/rwsem.c:1261 [inline] __down_read kernel/locking/rwsem.c:1274 [inline] down_read+0x94/0x2d0 kernel/locking/rwsem.c:1522 iterate_supers+0xa4/0x1d0 fs/super.c:755 ksys_sync+0x91/0x150 fs/sync.c:102 __ia32_sys_sync+0xa/0x10 fs/sync.c:113 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f8e3b18f749 RSP: 002b:00007fff640e0f18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f8e3b3e5fa0 RCX: 00007f8e3b18f749 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3b3e5fa0 R14: 00007f8e3b3e5fa0 R15: 0000000000000000 INFO: task syz.2.19:4528 blocked for more than 144 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.19 state:D stack:26672 pid:4528 ppid:4402 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0x10ec/0x40b0 kernel/sched/core.c:6561 schedule+0xb9/0x180 kernel/sched/core.c:6637 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6696 rwsem_down_read_slowpath+0x4f4/0x840 kernel/locking/rwsem.c:1094 __down_read_common kernel/locking/rwsem.c:1261 [inline] __down_read kernel/locking/rwsem.c:1274 [inline] down_read+0x94/0x2d0 kernel/locking/rwsem.c:1522 iterate_supers+0xa4/0x1d0 fs/super.c:755 ksys_sync+0x91/0x150 fs/sync.c:102 __ia32_sys_sync+0xa/0x10 fs/sync.c:113 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f4ada78f749 RSP: 002b:00007ffed82bf398 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f4ada9e5fa0 RCX: 00007f4ada78f749 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f4ada9e5fa0 R14: 00007f4ada9e5fa0 R15: 0000000000000000 Showing all locks held in the system: 2 locks held by kworker/u4:0/9: 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8c92bab0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xf00 kernel/rcu/tasks.h:517 1 lock held by rcu_tasks_trace/13: #0: ffffffff8c92c2d0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xf00 kernel/rcu/tasks.h:517 1 lock held by khungtaskd/27: #0: ffffffff8c92b120 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline] #0: ffffffff8c92b120 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline] #0: ffffffff8c92b120 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6513 3 locks held by kworker/u4:4/57: #0: ffff888017479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7a1/0x1160 kernel/workqueue.c:2267 #1: ffffc90001587d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x7a1/0x1160 kernel/workqueue.c:2267 #2: ffffffff8db3b3a8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xa/0x50 net/core/link_watch.c:263 2 locks held by kworker/0:3/2183: #0: ffff888017472138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7a1/0x1160 kernel/workqueue.c:2267 #1: ffffc90005e67d00 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7a1/0x1160 kernel/workqueue.c:2267 2 locks held by getty/4024: #0: ffff88814de98098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244 #1: ffffc9000327b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41b/0x1380 drivers/tty/n_tty.c:2198 3 locks held by kworker/1:5/4393: #0: ffff88814cead138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7a1/0x1160 kernel/workqueue.c:2267 #1: ffffc900032a7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7a1/0x1160 kernel/workqueue.c:2267 #2: ffffffff8db3b3a8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xc4/0x14d0 net/ipv6/addrconf.c:4131 1 lock held by syz.0.17/4460: #0: ffff88807852e0e0 (&type->s_umount_key#70/1){+.+.}-{3:3}, at: alloc_super+0x1fa/0x930 fs/super.c:228 1 lock held by syz.1.18/4462: #0: ffff8880238d40e0 (&type->s_umount_key#70/1){+.+.}-{3:3}, at: alloc_super+0x1fa/0x930 fs/super.c:228 1 lock held by syz.3.20/4526: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.4.21/4527: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.2.19/4528: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.5.22/4579: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.6.23/4580: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.7.24/4656: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.9.26/4658: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.8.25/4659: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.0.27/4704: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.1.28/4705: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.2.29/4766: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.3.30/4767: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.4.31/4768: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.5.32/4808: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.6.33/4819: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.7.34/4866: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.8.36/4898: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.9.35/4899: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.0.37/4926: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.1.38/4937: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.2.39/4957: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.3.41/5012: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.4.40/5013: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.5.42/5049: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.6.43/5065: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.7.44/5085: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.9.45/5147: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.8.46/5148: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.0.47/5182: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.1.48/5183: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.2.49/5194: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz-executor/5242: #0: ffffffff8db3b3a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffffffff8db3b3a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x740/0xed0 net/core/rtnetlink.c:6147 1 lock held by syz-executor/5246: #0: ffffffff8db3b3a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffffffff8db3b3a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x740/0xed0 net/core/rtnetlink.c:6147 1 lock held by syz.3.51/5248: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.4.50/5253: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 8 locks held by syz-executor/5277: #0: ffff88807ddb6460 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x256/0x960 fs/read_write.c:580 #1: ffff888045dd0088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1e3/0x520 fs/kernfs/file.c:343 #2: ffff888145327ae8 (kn->active#59){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline] #2: ffff888145327ae8 (kn->active#59){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x236/0x520 fs/kernfs/file.c:344 #3: ffffffff8d44d168 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xce/0x360 drivers/net/netdevsim/bus.c:209 #4: ffff8880590de0e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:840 [inline] #4: ffff8880590de0e8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1080 [inline] #4: ffff8880590de0e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xb2/0x850 drivers/base/dd.c:1283 #5: ffff8880590db2f8 (&devlink->lock_key#29){+.+.}-{3:3}, at: nsim_drv_remove+0x54/0x160 drivers/net/netdevsim/dev.c:1677 #6: ffffffff8db3b3a8 (rtnl_mutex){+.+.}-{3:3}, at: nsim_destroy+0x3b/0x150 drivers/net/netdevsim/netdev.c:381 #7: ffffffff8c930df8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline] #7: ffffffff8c930df8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x455/0x830 kernel/rcu/tree_exp.h:962 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x168/0x22e lib/dump_stack.c:106 nmi_cpu_backtrace+0x3f4/0x470 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x1d4/0x450 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline] watchdog+0xeee/0xf30 kernel/hung_task.c:377 kthread+0x29d/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 9 Comm: kworker/u4:0 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Workqueue: 0x0 (phy7) RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x60 kernel/kcov.c:215 Code: 00 00 00 00 00 90 53 48 89 fb e8 17 00 00 00 48 8b 3d 90 30 7e 0c 48 89 de 5b e9 47 68 4f 00 00 00 cc cc 00 00 cc 48 8b 04 24 <65> 48 8b 0d 64 8f 81 7e 65 8b 15 65 8f 81 7e 81 e2 00 01 ff 00 74 RSP: 0018:ffffc900000e7c00 EFLAGS: 00000002 RAX: ffffffff815420a7 RBX: ffff8880694a8400 RCX: 0000000000000000 RDX: ffff88813fe80000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000001 R08: dffffc0000000000 R09: ffff888017618a10 R10: ffffed1002ec3145 R11: 1ffff11002ec3142 R12: 00000000ffffffff R13: dffffc0000000000 R14: 1ffff1100d295082 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fad9ad60370 CR3: 000000000c68e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: put_pwq kernel/workqueue.c:1129 [inline] pwq_dec_nr_in_flight+0x1a7/0x450 kernel/workqueue.c:1228 process_one_work+0xb7b/0x1160 kernel/workqueue.c:2335 worker_thread+0xaa2/0x1250 kernel/workqueue.c:2439 kthread+0x29d/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 final repro crashed as (corrupted=false): INFO: task syz.3.20:4526 blocked for more than 143 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.3.20 state:D stack:26688 pid:4526 ppid:4404 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0x10ec/0x40b0 kernel/sched/core.c:6561 schedule+0xb9/0x180 kernel/sched/core.c:6637 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6696 rwsem_down_read_slowpath+0x4f4/0x840 kernel/locking/rwsem.c:1094 __down_read_common kernel/locking/rwsem.c:1261 [inline] __down_read kernel/locking/rwsem.c:1274 [inline] down_read+0x94/0x2d0 kernel/locking/rwsem.c:1522 iterate_supers+0xa4/0x1d0 fs/super.c:755 ksys_sync+0x91/0x150 fs/sync.c:102 __ia32_sys_sync+0xa/0x10 fs/sync.c:113 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f638678f749 RSP: 002b:00007ffeed155f48 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f63869e5fa0 RCX: 00007f638678f749 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f63869e5fa0 R14: 00007f63869e5fa0 R15: 0000000000000000 INFO: task syz.4.21:4527 blocked for more than 144 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.4.21 state:D stack:26688 pid:4527 ppid:4412 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0x10ec/0x40b0 kernel/sched/core.c:6561 schedule+0xb9/0x180 kernel/sched/core.c:6637 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6696 rwsem_down_read_slowpath+0x4f4/0x840 kernel/locking/rwsem.c:1094 __down_read_common kernel/locking/rwsem.c:1261 [inline] __down_read kernel/locking/rwsem.c:1274 [inline] down_read+0x94/0x2d0 kernel/locking/rwsem.c:1522 iterate_supers+0xa4/0x1d0 fs/super.c:755 ksys_sync+0x91/0x150 fs/sync.c:102 __ia32_sys_sync+0xa/0x10 fs/sync.c:113 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f8e3b18f749 RSP: 002b:00007fff640e0f18 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f8e3b3e5fa0 RCX: 00007f8e3b18f749 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8e3b3e5fa0 R14: 00007f8e3b3e5fa0 R15: 0000000000000000 INFO: task syz.2.19:4528 blocked for more than 144 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.19 state:D stack:26672 pid:4528 ppid:4402 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5244 [inline] __schedule+0x10ec/0x40b0 kernel/sched/core.c:6561 schedule+0xb9/0x180 kernel/sched/core.c:6637 schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6696 rwsem_down_read_slowpath+0x4f4/0x840 kernel/locking/rwsem.c:1094 __down_read_common kernel/locking/rwsem.c:1261 [inline] __down_read kernel/locking/rwsem.c:1274 [inline] down_read+0x94/0x2d0 kernel/locking/rwsem.c:1522 iterate_supers+0xa4/0x1d0 fs/super.c:755 ksys_sync+0x91/0x150 fs/sync.c:102 __ia32_sys_sync+0xa/0x10 fs/sync.c:113 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f4ada78f749 RSP: 002b:00007ffed82bf398 EFLAGS: 00000246 ORIG_RAX: 00000000000000a2 RAX: ffffffffffffffda RBX: 00007f4ada9e5fa0 RCX: 00007f4ada78f749 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f4ada9e5fa0 R14: 00007f4ada9e5fa0 R15: 0000000000000000 Showing all locks held in the system: 2 locks held by kworker/u4:0/9: 1 lock held by rcu_tasks_kthre/12: #0: ffffffff8c92bab0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xf00 kernel/rcu/tasks.h:517 1 lock held by rcu_tasks_trace/13: #0: ffffffff8c92c2d0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x33/0xf00 kernel/rcu/tasks.h:517 1 lock held by khungtaskd/27: #0: ffffffff8c92b120 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire include/linux/rcupdate.h:350 [inline] #0: ffffffff8c92b120 (rcu_read_lock){....}-{1:2}, at: rcu_read_lock include/linux/rcupdate.h:791 [inline] #0: ffffffff8c92b120 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x51/0x290 kernel/locking/lockdep.c:6513 3 locks held by kworker/u4:4/57: #0: ffff888017479138 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work+0x7a1/0x1160 kernel/workqueue.c:2267 #1: ffffc90001587d00 ((linkwatch_work).work){+.+.}-{0:0}, at: process_one_work+0x7a1/0x1160 kernel/workqueue.c:2267 #2: ffffffff8db3b3a8 (rtnl_mutex){+.+.}-{3:3}, at: linkwatch_event+0xa/0x50 net/core/link_watch.c:263 2 locks held by kworker/0:3/2183: #0: ffff888017472138 ((wq_completion)rcu_gp){+.+.}-{0:0}, at: process_one_work+0x7a1/0x1160 kernel/workqueue.c:2267 #1: ffffc90005e67d00 ((work_completion)(&rew->rew_work)){+.+.}-{0:0}, at: process_one_work+0x7a1/0x1160 kernel/workqueue.c:2267 2 locks held by getty/4024: #0: ffff88814de98098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:244 #1: ffffc9000327b2f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x41b/0x1380 drivers/tty/n_tty.c:2198 3 locks held by kworker/1:5/4393: #0: ffff88814cead138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x7a1/0x1160 kernel/workqueue.c:2267 #1: ffffc900032a7d00 ((work_completion)(&(&ifa->dad_work)->work)){+.+.}-{0:0}, at: process_one_work+0x7a1/0x1160 kernel/workqueue.c:2267 #2: ffffffff8db3b3a8 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_dad_work+0xc4/0x14d0 net/ipv6/addrconf.c:4131 1 lock held by syz.0.17/4460: #0: ffff88807852e0e0 (&type->s_umount_key#70/1){+.+.}-{3:3}, at: alloc_super+0x1fa/0x930 fs/super.c:228 1 lock held by syz.1.18/4462: #0: ffff8880238d40e0 (&type->s_umount_key#70/1){+.+.}-{3:3}, at: alloc_super+0x1fa/0x930 fs/super.c:228 1 lock held by syz.3.20/4526: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.4.21/4527: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.2.19/4528: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.5.22/4579: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.6.23/4580: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.7.24/4656: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.9.26/4658: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.8.25/4659: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.0.27/4704: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.1.28/4705: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.2.29/4766: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.3.30/4767: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.4.31/4768: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.5.32/4808: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.6.33/4819: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.7.34/4866: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.8.36/4898: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.9.35/4899: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.0.37/4926: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.1.38/4937: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.2.39/4957: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.3.41/5012: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.4.40/5013: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.5.42/5049: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.6.43/5065: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.7.44/5085: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.9.45/5147: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.8.46/5148: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.0.47/5182: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.1.48/5183: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.2.49/5194: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz-executor/5242: #0: ffffffff8db3b3a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffffffff8db3b3a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x740/0xed0 net/core/rtnetlink.c:6147 1 lock held by syz-executor/5246: #0: ffffffff8db3b3a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline] #0: ffffffff8db3b3a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x740/0xed0 net/core/rtnetlink.c:6147 1 lock held by syz.3.51/5248: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 1 lock held by syz.4.50/5253: #0: ffff88807852e0e0 (&type->s_umount_key#71){.+.+}-{3:3}, at: iterate_supers+0xa4/0x1d0 fs/super.c:755 8 locks held by syz-executor/5277: #0: ffff88807ddb6460 (sb_writers#8){.+.+}-{0:0}, at: vfs_write+0x256/0x960 fs/read_write.c:580 #1: ffff888045dd0088 (&of->mutex){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x1e3/0x520 fs/kernfs/file.c:343 #2: ffff888145327ae8 (kn->active#59){.+.+}-{0:0}, at: kernfs_get_active_of fs/kernfs/file.c:80 [inline] #2: ffff888145327ae8 (kn->active#59){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x236/0x520 fs/kernfs/file.c:344 #3: ffffffff8d44d168 (nsim_bus_dev_list_lock){+.+.}-{3:3}, at: del_device_store+0xce/0x360 drivers/net/netdevsim/bus.c:209 #4: ffff8880590de0e8 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:840 [inline] #4: ffff8880590de0e8 (&dev->mutex){....}-{3:3}, at: __device_driver_lock drivers/base/dd.c:1080 [inline] #4: ffff8880590de0e8 (&dev->mutex){....}-{3:3}, at: device_release_driver_internal+0xb2/0x850 drivers/base/dd.c:1283 #5: ffff8880590db2f8 (&devlink->lock_key#29){+.+.}-{3:3}, at: nsim_drv_remove+0x54/0x160 drivers/net/netdevsim/dev.c:1677 #6: ffffffff8db3b3a8 (rtnl_mutex){+.+.}-{3:3}, at: nsim_destroy+0x3b/0x150 drivers/net/netdevsim/netdev.c:381 #7: ffffffff8c930df8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: exp_funnel_lock kernel/rcu/tree_exp.h:291 [inline] #7: ffffffff8c930df8 (rcu_state.exp_mutex){+.+.}-{3:3}, at: synchronize_rcu_expedited+0x455/0x830 kernel/rcu/tree_exp.h:962 ============================================= NMI backtrace for cpu 0 CPU: 0 PID: 27 Comm: khungtaskd Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: dump_stack_lvl+0x168/0x22e lib/dump_stack.c:106 nmi_cpu_backtrace+0x3f4/0x470 lib/nmi_backtrace.c:111 nmi_trigger_cpumask_backtrace+0x1d4/0x450 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:220 [inline] watchdog+0xeee/0xf30 kernel/hung_task.c:377 kthread+0x29d/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 9 Comm: kworker/u4:0 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Workqueue: 0x0 (phy7) RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x60 kernel/kcov.c:215 Code: 00 00 00 00 00 90 53 48 89 fb e8 17 00 00 00 48 8b 3d 90 30 7e 0c 48 89 de 5b e9 47 68 4f 00 00 00 cc cc 00 00 cc 48 8b 04 24 <65> 48 8b 0d 64 8f 81 7e 65 8b 15 65 8f 81 7e 81 e2 00 01 ff 00 74 RSP: 0018:ffffc900000e7c00 EFLAGS: 00000002 RAX: ffffffff815420a7 RBX: ffff8880694a8400 RCX: 0000000000000000 RDX: ffff88813fe80000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: 0000000000000001 R08: dffffc0000000000 R09: ffff888017618a10 R10: ffffed1002ec3145 R11: 1ffff11002ec3142 R12: 00000000ffffffff R13: dffffc0000000000 R14: 1ffff1100d295082 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fad9ad60370 CR3: 000000000c68e000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: put_pwq kernel/workqueue.c:1129 [inline] pwq_dec_nr_in_flight+0x1a7/0x450 kernel/workqueue.c:1228 process_one_work+0xb7b/0x1160 kernel/workqueue.c:2335 worker_thread+0xaa2/0x1250 kernel/workqueue.c:2439 kthread+0x29d/0x330 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295