Extracting prog: 1m9.603761024s
Minimizing prog: 24m19.21680265s
Simplifying prog options: 0s
Extracting C: 1m9.616847239s
Simplifying C: 13m27.733041432s


extracting reproducer from 67 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-openat$dir-syz_clone-syz_open_procfs$userns-setns-syz_open_procfs-syz_open_procfs-syz_open_dev$loop-sendfile-umount2-mkdir-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x10200, 0x1)
syz_clone(0x40000000, &(0x7f0000000240)="9ccc74833a97e22bb428b7e3d8251afce106b3e6585a7288585b170298db342993741bca92f68d3e5bb92bd884d36373af484077252b9140c4761536f11e7e58454383c5cf0a68d7664396755ac43236db403249df97ba47a37e89cfb50594f0593491198863fc6d35563936c81677e37cc00f25ff8f9f3e11e136258d0f854024f96116e348a7922dd41efac4cd4e0916742239b4ee", 0x96, &(0x7f0000000000), &(0x7f0000000080), &(0x7f0000000100)="258c1658e29b6c6a694f682ee950ab9215a30ea73312b91e3c1d252e18f758d425277876bd893ba4e1c0268b1a92b542a52523dd00799d1f546191b7e4e9a2e6d8fd7ae786b1939c7c54b579968292ce8764cc34220a38b3f1353c3ed398e35c7cb3d7fff5645fb1d7cbf066e61ccdf124")
syz_open_procfs$userns(r0, &(0x7f00000000c0))
setns(r1, 0x24020000)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000200)='smaps_rollup\x00')
syz_open_procfs(r0, &(0x7f00000001c0)='net/tcp6\x00')
r2 = syz_open_dev$loop(&(0x7f0000000140), 0x760, 0xa382)
sendfile(r2, r2, 0x0, 0x24002de8)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mkdir(&(0x7f00000000c0)='./bus\x00', 0xcd)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program crashed: WARNING in simple_rmdir
single: successfully extracted reproducer
found reproducer with 18 syscalls
minimizing guilty program
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-openat$dir-syz_clone-syz_open_procfs$userns-setns-syz_open_procfs-syz_open_procfs-syz_open_dev$loop-sendfile-umount2-mkdir-mount$incfs-chdir-mkdirat-mkdir-mkdir
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x10200, 0x1)
syz_clone(0x40000000, &(0x7f0000000240)="9ccc74833a97e22bb428b7e3d8251afce106b3e6585a7288585b170298db342993741bca92f68d3e5bb92bd884d36373af484077252b9140c4761536f11e7e58454383c5cf0a68d7664396755ac43236db403249df97ba47a37e89cfb50594f0593491198863fc6d35563936c81677e37cc00f25ff8f9f3e11e136258d0f854024f96116e348a7922dd41efac4cd4e0916742239b4ee", 0x96, &(0x7f0000000000), &(0x7f0000000080), &(0x7f0000000100)="258c1658e29b6c6a694f682ee950ab9215a30ea73312b91e3c1d252e18f758d425277876bd893ba4e1c0268b1a92b542a52523dd00799d1f546191b7e4e9a2e6d8fd7ae786b1939c7c54b579968292ce8764cc34220a38b3f1353c3ed398e35c7cb3d7fff5645fb1d7cbf066e61ccdf124")
syz_open_procfs$userns(r0, &(0x7f00000000c0))
setns(r1, 0x24020000)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000200)='smaps_rollup\x00')
syz_open_procfs(r0, &(0x7f00000001c0)='net/tcp6\x00')
r2 = syz_open_dev$loop(&(0x7f0000000140), 0x760, 0xa382)
sendfile(r2, r2, 0x0, 0x24002de8)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mkdir(&(0x7f00000000c0)='./bus\x00', 0xcd)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)

program did not crash
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-openat$dir-syz_clone-syz_open_procfs$userns-setns-syz_open_procfs-syz_open_procfs-syz_open_dev$loop-sendfile-umount2-mkdir-mount$incfs-chdir-mkdirat-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x10200, 0x1)
syz_clone(0x40000000, &(0x7f0000000240)="9ccc74833a97e22bb428b7e3d8251afce106b3e6585a7288585b170298db342993741bca92f68d3e5bb92bd884d36373af484077252b9140c4761536f11e7e58454383c5cf0a68d7664396755ac43236db403249df97ba47a37e89cfb50594f0593491198863fc6d35563936c81677e37cc00f25ff8f9f3e11e136258d0f854024f96116e348a7922dd41efac4cd4e0916742239b4ee", 0x96, &(0x7f0000000000), &(0x7f0000000080), &(0x7f0000000100)="258c1658e29b6c6a694f682ee950ab9215a30ea73312b91e3c1d252e18f758d425277876bd893ba4e1c0268b1a92b542a52523dd00799d1f546191b7e4e9a2e6d8fd7ae786b1939c7c54b579968292ce8764cc34220a38b3f1353c3ed398e35c7cb3d7fff5645fb1d7cbf066e61ccdf124")
syz_open_procfs$userns(r0, &(0x7f00000000c0))
setns(r1, 0x24020000)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000200)='smaps_rollup\x00')
syz_open_procfs(r0, &(0x7f00000001c0)='net/tcp6\x00')
r2 = syz_open_dev$loop(&(0x7f0000000140), 0x760, 0xa382)
sendfile(r2, r2, 0x0, 0x24002de8)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mkdir(&(0x7f00000000c0)='./bus\x00', 0xcd)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program did not crash
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-openat$dir-syz_clone-syz_open_procfs$userns-setns-syz_open_procfs-syz_open_procfs-syz_open_dev$loop-sendfile-umount2-mkdir-mount$incfs-chdir-mkdirat-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x10200, 0x1)
syz_clone(0x40000000, &(0x7f0000000240)="9ccc74833a97e22bb428b7e3d8251afce106b3e6585a7288585b170298db342993741bca92f68d3e5bb92bd884d36373af484077252b9140c4761536f11e7e58454383c5cf0a68d7664396755ac43236db403249df97ba47a37e89cfb50594f0593491198863fc6d35563936c81677e37cc00f25ff8f9f3e11e136258d0f854024f96116e348a7922dd41efac4cd4e0916742239b4ee", 0x96, &(0x7f0000000000), &(0x7f0000000080), &(0x7f0000000100)="258c1658e29b6c6a694f682ee950ab9215a30ea73312b91e3c1d252e18f758d425277876bd893ba4e1c0268b1a92b542a52523dd00799d1f546191b7e4e9a2e6d8fd7ae786b1939c7c54b579968292ce8764cc34220a38b3f1353c3ed398e35c7cb3d7fff5645fb1d7cbf066e61ccdf124")
syz_open_procfs$userns(r0, &(0x7f00000000c0))
setns(r1, 0x24020000)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000200)='smaps_rollup\x00')
syz_open_procfs(r0, &(0x7f00000001c0)='net/tcp6\x00')
r2 = syz_open_dev$loop(&(0x7f0000000140), 0x760, 0xa382)
sendfile(r2, r2, 0x0, 0x24002de8)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mkdir(&(0x7f00000000c0)='./bus\x00', 0xcd)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program did not crash
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-openat$dir-syz_clone-syz_open_procfs$userns-setns-syz_open_procfs-syz_open_procfs-syz_open_dev$loop-sendfile-umount2-mkdir-mount$incfs-chdir-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x10200, 0x1)
syz_clone(0x40000000, &(0x7f0000000240)="9ccc74833a97e22bb428b7e3d8251afce106b3e6585a7288585b170298db342993741bca92f68d3e5bb92bd884d36373af484077252b9140c4761536f11e7e58454383c5cf0a68d7664396755ac43236db403249df97ba47a37e89cfb50594f0593491198863fc6d35563936c81677e37cc00f25ff8f9f3e11e136258d0f854024f96116e348a7922dd41efac4cd4e0916742239b4ee", 0x96, &(0x7f0000000000), &(0x7f0000000080), &(0x7f0000000100)="258c1658e29b6c6a694f682ee950ab9215a30ea73312b91e3c1d252e18f758d425277876bd893ba4e1c0268b1a92b542a52523dd00799d1f546191b7e4e9a2e6d8fd7ae786b1939c7c54b579968292ce8764cc34220a38b3f1353c3ed398e35c7cb3d7fff5645fb1d7cbf066e61ccdf124")
syz_open_procfs$userns(r0, &(0x7f00000000c0))
setns(r1, 0x24020000)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000200)='smaps_rollup\x00')
syz_open_procfs(r0, &(0x7f00000001c0)='net/tcp6\x00')
r2 = syz_open_dev$loop(&(0x7f0000000140), 0x760, 0xa382)
sendfile(r2, r2, 0x0, 0x24002de8)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mkdir(&(0x7f00000000c0)='./bus\x00', 0xcd)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program did not crash
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-openat$dir-syz_clone-syz_open_procfs$userns-setns-syz_open_procfs-syz_open_procfs-syz_open_dev$loop-sendfile-umount2-mkdir-mount$incfs-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x10200, 0x1)
syz_clone(0x40000000, &(0x7f0000000240)="9ccc74833a97e22bb428b7e3d8251afce106b3e6585a7288585b170298db342993741bca92f68d3e5bb92bd884d36373af484077252b9140c4761536f11e7e58454383c5cf0a68d7664396755ac43236db403249df97ba47a37e89cfb50594f0593491198863fc6d35563936c81677e37cc00f25ff8f9f3e11e136258d0f854024f96116e348a7922dd41efac4cd4e0916742239b4ee", 0x96, &(0x7f0000000000), &(0x7f0000000080), &(0x7f0000000100)="258c1658e29b6c6a694f682ee950ab9215a30ea73312b91e3c1d252e18f758d425277876bd893ba4e1c0268b1a92b542a52523dd00799d1f546191b7e4e9a2e6d8fd7ae786b1939c7c54b579968292ce8764cc34220a38b3f1353c3ed398e35c7cb3d7fff5645fb1d7cbf066e61ccdf124")
syz_open_procfs$userns(r0, &(0x7f00000000c0))
setns(r1, 0x24020000)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000200)='smaps_rollup\x00')
syz_open_procfs(r0, &(0x7f00000001c0)='net/tcp6\x00')
r2 = syz_open_dev$loop(&(0x7f0000000140), 0x760, 0xa382)
sendfile(r2, r2, 0x0, 0x24002de8)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mkdir(&(0x7f00000000c0)='./bus\x00', 0xcd)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program did not crash
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-openat$dir-syz_clone-syz_open_procfs$userns-setns-syz_open_procfs-syz_open_procfs-syz_open_dev$loop-sendfile-umount2-mkdir-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x10200, 0x1)
syz_clone(0x40000000, &(0x7f0000000240)="9ccc74833a97e22bb428b7e3d8251afce106b3e6585a7288585b170298db342993741bca92f68d3e5bb92bd884d36373af484077252b9140c4761536f11e7e58454383c5cf0a68d7664396755ac43236db403249df97ba47a37e89cfb50594f0593491198863fc6d35563936c81677e37cc00f25ff8f9f3e11e136258d0f854024f96116e348a7922dd41efac4cd4e0916742239b4ee", 0x96, &(0x7f0000000000), &(0x7f0000000080), &(0x7f0000000100)="258c1658e29b6c6a694f682ee950ab9215a30ea73312b91e3c1d252e18f758d425277876bd893ba4e1c0268b1a92b542a52523dd00799d1f546191b7e4e9a2e6d8fd7ae786b1939c7c54b579968292ce8764cc34220a38b3f1353c3ed398e35c7cb3d7fff5645fb1d7cbf066e61ccdf124")
syz_open_procfs$userns(r0, &(0x7f00000000c0))
setns(r1, 0x24020000)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000200)='smaps_rollup\x00')
syz_open_procfs(r0, &(0x7f00000001c0)='net/tcp6\x00')
r2 = syz_open_dev$loop(&(0x7f0000000140), 0x760, 0xa382)
sendfile(r2, r2, 0x0, 0x24002de8)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mkdir(&(0x7f00000000c0)='./bus\x00', 0xcd)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program did not crash
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-openat$dir-syz_clone-syz_open_procfs$userns-setns-syz_open_procfs-syz_open_procfs-syz_open_dev$loop-sendfile-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x10200, 0x1)
syz_clone(0x40000000, &(0x7f0000000240)="9ccc74833a97e22bb428b7e3d8251afce106b3e6585a7288585b170298db342993741bca92f68d3e5bb92bd884d36373af484077252b9140c4761536f11e7e58454383c5cf0a68d7664396755ac43236db403249df97ba47a37e89cfb50594f0593491198863fc6d35563936c81677e37cc00f25ff8f9f3e11e136258d0f854024f96116e348a7922dd41efac4cd4e0916742239b4ee", 0x96, &(0x7f0000000000), &(0x7f0000000080), &(0x7f0000000100)="258c1658e29b6c6a694f682ee950ab9215a30ea73312b91e3c1d252e18f758d425277876bd893ba4e1c0268b1a92b542a52523dd00799d1f546191b7e4e9a2e6d8fd7ae786b1939c7c54b579968292ce8764cc34220a38b3f1353c3ed398e35c7cb3d7fff5645fb1d7cbf066e61ccdf124")
syz_open_procfs$userns(r0, &(0x7f00000000c0))
setns(r1, 0x24020000)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000200)='smaps_rollup\x00')
syz_open_procfs(r0, &(0x7f00000001c0)='net/tcp6\x00')
r2 = syz_open_dev$loop(&(0x7f0000000140), 0x760, 0xa382)
sendfile(r2, r2, 0x0, 0x24002de8)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program crashed: WARNING in simple_rmdir
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-openat$dir-syz_clone-syz_open_procfs$userns-setns-syz_open_procfs-syz_open_procfs-syz_open_dev$loop-sendfile-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x10200, 0x1)
syz_clone(0x40000000, &(0x7f0000000240)="9ccc74833a97e22bb428b7e3d8251afce106b3e6585a7288585b170298db342993741bca92f68d3e5bb92bd884d36373af484077252b9140c4761536f11e7e58454383c5cf0a68d7664396755ac43236db403249df97ba47a37e89cfb50594f0593491198863fc6d35563936c81677e37cc00f25ff8f9f3e11e136258d0f854024f96116e348a7922dd41efac4cd4e0916742239b4ee", 0x96, &(0x7f0000000000), &(0x7f0000000080), &(0x7f0000000100)="258c1658e29b6c6a694f682ee950ab9215a30ea73312b91e3c1d252e18f758d425277876bd893ba4e1c0268b1a92b542a52523dd00799d1f546191b7e4e9a2e6d8fd7ae786b1939c7c54b579968292ce8764cc34220a38b3f1353c3ed398e35c7cb3d7fff5645fb1d7cbf066e61ccdf124")
syz_open_procfs$userns(r0, &(0x7f00000000c0))
setns(r1, 0x24020000)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000200)='smaps_rollup\x00')
syz_open_procfs(r0, &(0x7f00000001c0)='net/tcp6\x00')
r2 = syz_open_dev$loop(&(0x7f0000000140), 0x760, 0xa382)
sendfile(r2, r2, 0x0, 0x24002de8)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program did not crash
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-openat$dir-syz_clone-syz_open_procfs$userns-setns-syz_open_procfs-syz_open_procfs-syz_open_dev$loop-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x10200, 0x1)
syz_clone(0x40000000, &(0x7f0000000240)="9ccc74833a97e22bb428b7e3d8251afce106b3e6585a7288585b170298db342993741bca92f68d3e5bb92bd884d36373af484077252b9140c4761536f11e7e58454383c5cf0a68d7664396755ac43236db403249df97ba47a37e89cfb50594f0593491198863fc6d35563936c81677e37cc00f25ff8f9f3e11e136258d0f854024f96116e348a7922dd41efac4cd4e0916742239b4ee", 0x96, &(0x7f0000000000), &(0x7f0000000080), &(0x7f0000000100)="258c1658e29b6c6a694f682ee950ab9215a30ea73312b91e3c1d252e18f758d425277876bd893ba4e1c0268b1a92b542a52523dd00799d1f546191b7e4e9a2e6d8fd7ae786b1939c7c54b579968292ce8764cc34220a38b3f1353c3ed398e35c7cb3d7fff5645fb1d7cbf066e61ccdf124")
syz_open_procfs$userns(r0, &(0x7f00000000c0))
setns(r1, 0x24020000)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000200)='smaps_rollup\x00')
syz_open_procfs(r0, &(0x7f00000001c0)='net/tcp6\x00')
syz_open_dev$loop(&(0x7f0000000140), 0x760, 0xa382)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program crashed: WARNING in simple_rmdir
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-openat$dir-syz_clone-syz_open_procfs$userns-setns-syz_open_procfs-syz_open_procfs-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x10200, 0x1)
syz_clone(0x40000000, &(0x7f0000000240)="9ccc74833a97e22bb428b7e3d8251afce106b3e6585a7288585b170298db342993741bca92f68d3e5bb92bd884d36373af484077252b9140c4761536f11e7e58454383c5cf0a68d7664396755ac43236db403249df97ba47a37e89cfb50594f0593491198863fc6d35563936c81677e37cc00f25ff8f9f3e11e136258d0f854024f96116e348a7922dd41efac4cd4e0916742239b4ee", 0x96, &(0x7f0000000000), &(0x7f0000000080), &(0x7f0000000100)="258c1658e29b6c6a694f682ee950ab9215a30ea73312b91e3c1d252e18f758d425277876bd893ba4e1c0268b1a92b542a52523dd00799d1f546191b7e4e9a2e6d8fd7ae786b1939c7c54b579968292ce8764cc34220a38b3f1353c3ed398e35c7cb3d7fff5645fb1d7cbf066e61ccdf124")
syz_open_procfs$userns(r0, &(0x7f00000000c0))
setns(r1, 0x24020000)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000200)='smaps_rollup\x00')
syz_open_procfs(r0, &(0x7f00000001c0)='net/tcp6\x00')
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program crashed: WARNING in simple_rmdir
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-openat$dir-syz_clone-syz_open_procfs$userns-setns-syz_open_procfs-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x10200, 0x1)
syz_clone(0x40000000, &(0x7f0000000240)="9ccc74833a97e22bb428b7e3d8251afce106b3e6585a7288585b170298db342993741bca92f68d3e5bb92bd884d36373af484077252b9140c4761536f11e7e58454383c5cf0a68d7664396755ac43236db403249df97ba47a37e89cfb50594f0593491198863fc6d35563936c81677e37cc00f25ff8f9f3e11e136258d0f854024f96116e348a7922dd41efac4cd4e0916742239b4ee", 0x96, &(0x7f0000000000), &(0x7f0000000080), &(0x7f0000000100)="258c1658e29b6c6a694f682ee950ab9215a30ea73312b91e3c1d252e18f758d425277876bd893ba4e1c0268b1a92b542a52523dd00799d1f546191b7e4e9a2e6d8fd7ae786b1939c7c54b579968292ce8764cc34220a38b3f1353c3ed398e35c7cb3d7fff5645fb1d7cbf066e61ccdf124")
syz_open_procfs$userns(r0, &(0x7f00000000c0))
setns(r1, 0x24020000)
syz_open_procfs(0xffffffffffffffff, &(0x7f0000000200)='smaps_rollup\x00')
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program crashed: WARNING in simple_rmdir
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-openat$dir-syz_clone-syz_open_procfs$userns-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x10200, 0x1)
syz_clone(0x40000000, &(0x7f0000000240)="9ccc74833a97e22bb428b7e3d8251afce106b3e6585a7288585b170298db342993741bca92f68d3e5bb92bd884d36373af484077252b9140c4761536f11e7e58454383c5cf0a68d7664396755ac43236db403249df97ba47a37e89cfb50594f0593491198863fc6d35563936c81677e37cc00f25ff8f9f3e11e136258d0f854024f96116e348a7922dd41efac4cd4e0916742239b4ee", 0x96, &(0x7f0000000000), &(0x7f0000000080), &(0x7f0000000100)="258c1658e29b6c6a694f682ee950ab9215a30ea73312b91e3c1d252e18f758d425277876bd893ba4e1c0268b1a92b542a52523dd00799d1f546191b7e4e9a2e6d8fd7ae786b1939c7c54b579968292ce8764cc34220a38b3f1353c3ed398e35c7cb3d7fff5645fb1d7cbf066e61ccdf124")
syz_open_procfs$userns(r0, &(0x7f00000000c0))
setns(r1, 0x24020000)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program crashed: WARNING in simple_rmdir
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-openat$dir-syz_clone-syz_open_procfs$userns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
syz_pidfd_open(r0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x10200, 0x1)
syz_clone(0x40000000, &(0x7f0000000240)="9ccc74833a97e22bb428b7e3d8251afce106b3e6585a7288585b170298db342993741bca92f68d3e5bb92bd884d36373af484077252b9140c4761536f11e7e58454383c5cf0a68d7664396755ac43236db403249df97ba47a37e89cfb50594f0593491198863fc6d35563936c81677e37cc00f25ff8f9f3e11e136258d0f854024f96116e348a7922dd41efac4cd4e0916742239b4ee", 0x96, &(0x7f0000000000), &(0x7f0000000080), &(0x7f0000000100)="258c1658e29b6c6a694f682ee950ab9215a30ea73312b91e3c1d252e18f758d425277876bd893ba4e1c0268b1a92b542a52523dd00799d1f546191b7e4e9a2e6d8fd7ae786b1939c7c54b579968292ce8764cc34220a38b3f1353c3ed398e35c7cb3d7fff5645fb1d7cbf066e61ccdf124")
syz_open_procfs$userns(r0, &(0x7f00000000c0))
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program did not crash
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-openat$dir-syz_clone-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x10200, 0x1)
syz_clone(0x40000000, &(0x7f0000000240)="9ccc74833a97e22bb428b7e3d8251afce106b3e6585a7288585b170298db342993741bca92f68d3e5bb92bd884d36373af484077252b9140c4761536f11e7e58454383c5cf0a68d7664396755ac43236db403249df97ba47a37e89cfb50594f0593491198863fc6d35563936c81677e37cc00f25ff8f9f3e11e136258d0f854024f96116e348a7922dd41efac4cd4e0916742239b4ee", 0x96, &(0x7f0000000000), &(0x7f0000000080), &(0x7f0000000100)="258c1658e29b6c6a694f682ee950ab9215a30ea73312b91e3c1d252e18f758d425277876bd893ba4e1c0268b1a92b542a52523dd00799d1f546191b7e4e9a2e6d8fd7ae786b1939c7c54b579968292ce8764cc34220a38b3f1353c3ed398e35c7cb3d7fff5645fb1d7cbf066e61ccdf124")
setns(r1, 0x24020000)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program crashed: WARNING in simple_rmdir
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-openat$dir-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
openat$dir(0xffffffffffffff9c, 0x0, 0x10200, 0x1)
setns(r1, 0x24020000)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program crashed: WARNING in simple_rmdir
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
setns(r1, 0x24020000)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program crashed: WARNING in simple_rmdir
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
getpid()
setns(0xffffffffffffffff, 0x24020000)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program did not crash
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = syz_pidfd_open(0x0, 0x0)
setns(r0, 0x24020000)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program did not crash
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
setns(r1, 0x24020000)
umount2(0x0, 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program did not crash
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
setns(r1, 0x24020000)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(0x0, &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program did not crash
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
setns(r1, 0x24020000)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', 0x0, &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program did not crash
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
setns(r1, 0x24020000)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', 0x0, 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program did not crash
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
setns(r1, 0x24020000)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program did not crash
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
setns(r1, 0x24020000)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, 0x0, 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program did not crash
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
setns(r1, 0x24020000)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(0x0, 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program did not crash
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
setns(r1, 0x24020000)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(0x0, 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program did not crash
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
setns(r1, 0x24020000)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, 0x0, &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program did not crash
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
setns(r1, 0x24020000)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', 0x0, 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program did not crash
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
setns(r1, 0x24020000)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, 0x0)

program did not crash
testing program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
setns(r1, 0x24020000)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340))

program did not crash
extracting C reproducer
testing compiled C program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
program crashed: WARNING in simple_rmdir
simplifying C reproducer
testing compiled C program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
program crashed: WARNING in simple_rmdir
testing compiled C program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
program did not crash
testing compiled C program (duration=32.50213213s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
program did not crash
testing compiled C program (duration=32.50213213s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
program did not crash
testing compiled C program (duration=32.50213213s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
program crashed: WARNING in simple_rmdir
testing compiled C program (duration=32.50213213s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
program crashed: WARNING in simple_rmdir
testing compiled C program (duration=32.50213213s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
program crashed: WARNING in simple_rmdir
testing compiled C program (duration=32.50213213s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
program crashed: WARNING in simple_rmdir
testing compiled C program (duration=32.50213213s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
program crashed: WARNING in simple_rmdir
testing compiled C program (duration=32.50213213s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
program crashed: WARNING in simple_rmdir
testing compiled C program (duration=32.50213213s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
program did not crash
testing compiled C program (duration=32.50213213s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
program crashed: WARNING in simple_rmdir
testing compiled C program (duration=32.50213213s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
program crashed: WARNING in simple_rmdir
testing compiled C program (duration=32.50213213s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
program crashed: WARNING in simple_rmdir
testing program (duration=32.50213213s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
setns(r1, 0x24020000)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program crashed: WARNING in simple_rmdir
validation run: crashed=true
testing program (duration=32.50213213s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
setns(r1, 0x24020000)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program crashed: WARNING in simple_rmdir
validation run: crashed=true
testing program (duration=32.50213213s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): getpid-syz_pidfd_open-setns-umount2-mount$incfs-chdir-mkdirat-mkdir-mkdir-mount$overlay
detailed listing:
executing program 0:
r0 = getpid()
r1 = syz_pidfd_open(r0, 0x0)
setns(r1, 0x24020000)
umount2(&(0x7f0000000040)='.\x00', 0x2)
mount$incfs(&(0x7f00000007c0)='./bus\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
mkdirat(0xffffffffffffff9c, &(0x7f00000021c0)='./file0\x00', 0x3a)
mkdir(&(0x7f0000000040)='./file1\x00', 0x0)
mkdir(&(0x7f0000000300)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000080), 0x1004040, &(0x7f0000000340)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}]})

program crashed: WARNING in simple_rmdir
validation run: crashed=true
reproducing took 42m33.24309569s
repro crashed as (corrupted=false):
------------[ cut here ]------------
WARNING: CPU: 0 PID: 392 at fs/inode.c:340 drop_nlink+0xce/0x110 fs/inode.c:340
Modules linked in:
CPU: 0 UID: 0 PID: 392 Comm: syz.5.25 Not tainted 6.12.30-syzkaller-g21ed84930c16 #0 fa4558fba7fa11aa57b2c84caea5bf67b39b1b5f
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:drop_nlink+0xce/0x110 fs/inode.c:340
Code: 04 00 00 be 08 00 00 00 e8 cf 55 ee ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 32 58 98 ff <0f> 0b eb 81 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 59 ff ff ff 4c
RSP: 0018:ffffc90002e6f0d0 EFLAGS: 00010293

RAX: ffffffff81ed527e RBX: ffff888130ec9040 RCX: ffff8881176a1300
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90002e6f0f8 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520005cde10 R12: dffffc0000000000
R13: 1ffff110261d9211 R14: ffff888130ec9088 R15: 0000000000000000
FS:  000055558c692500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 0000000117272000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 simple_rmdir+0x153/0x260 fs/libfs.c:781
 vfs_rmdir+0x3dd/0x560 fs/namei.c:4340
 incfs_rmdir fs/incfs/vfs.c:649 [inline]
 dir_rmdir+0x236/0x320 fs/incfs/vfs.c:1352
 vfs_rmdir+0x3dd/0x560 fs/namei.c:4340
 incfs_rmdir fs/incfs/vfs.c:649 [inline]
 dir_rmdir+0x236/0x320 fs/incfs/vfs.c:1352
 vfs_rmdir+0x3dd/0x560 fs/namei.c:4340
 ovl_do_rmdir fs/overlayfs/overlayfs.h:209 [inline]
 ovl_workdir_cleanup+0x192/0x780 fs/overlayfs/readdir.c:1156
 ovl_workdir_create+0x2af/0x750 fs/overlayfs/super.c:303
 ovl_make_workdir fs/overlayfs/super.c:650 [inline]
 ovl_get_workdir+0x328/0x1650 fs/overlayfs/super.c:808
 ovl_fill_super+0x133f/0x36f0 fs/overlayfs/super.c:1381
 vfs_get_super fs/super.c:1283 [inline]
 get_tree_nodev+0xcb/0x170 fs/super.c:1302
 ovl_get_tree+0x20/0x30 fs/overlayfs/params.c:610
 vfs_get_tree+0x9e/0x290 fs/super.c:1817
 do_new_mount+0x251/0xb40 fs/namespace.c:3519
 path_mount+0x688/0x1050 fs/namespace.c:3846
 do_mount fs/namespace.c:3859 [inline]
 __do_sys_mount fs/namespace.c:4069 [inline]
 __se_sys_mount+0x2bd/0x480 fs/namespace.c:4046
 __x64_sys_mount+0xc3/0xf0 fs/namespace.c:4046
 x64_sys_call+0x2021/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f8e2118e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff98fd2868 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f8e213b5fa0 RCX: 00007f8e2118e929
RDX: 0000200000000080 RSI: 00002000000000c0 RDI: 0000000000000000
RBP: 00007f8e21210b39 R08: 0000200000000340 R09: 0000000000000000
R10: 0000000001004040 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8e213b5fa0 R14: 00007f8e213b5fa0 R15: 0000000000000005
 </TASK>
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 392 at fs/dcache.c:774 fast_dput fs/dcache.c:774 [inline]
WARNING: CPU: 1 PID: 392 at fs/dcache.c:774 dput+0x3cd/0x510 fs/dcache.c:851
Modules linked in:

CPU: 1 UID: 0 PID: 392 Comm: syz.5.25 Tainted: G        W          6.12.30-syzkaller-g21ed84930c16 #0 fa4558fba7fa11aa57b2c84caea5bf67b39b1b5f
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:fast_dput fs/dcache.c:774 [inline]
RIP: 0010:dput+0x3cd/0x510 fs/dcache.c:851
Code: 55 99 ff 48 b8 00 00 00 00 00 fc ff df 48 8b 4d d0 0f b6 04 01 84 c0 0f 85 21 01 00 00 80 0b 40 e9 a8 fe ff ff e8 93 55 99 ff <0f> 0b e9 9c fe ff ff e8 87 55 99 ff 48 89 df e8 2f 01 00 00 84 c0
RSP: 0018:ffffc90002e6f3b0 EFLAGS: 00010293

RAX: ffffffff81ec551d RBX: ffff888130e4c770 RCX: ffff8881176a1300
RDX: 0000000000000000 RSI: 00000000ffffff80 RDI: 0000000000000001
RBP: ffffc90002e6f3e0 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520005cde68 R12: 00000000ffffff80
R13: ffff888130e4c7f4 R14: ffff888130e4c7f0 R15: 1ffff110261c98fe
FS:  000055558c692500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 0000000117272000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 path_put+0x3d/0x70 fs/namei.c:568
 dentry_release+0x53/0xb0 fs/incfs/vfs.c:1587
 __dentry_kill+0x22b/0x5f0 fs/dcache.c:620
 dput+0x3f2/0x510 fs/dcache.c:857
 path_put+0x3d/0x70 fs/namei.c:568
 dentry_release+0x53/0xb0 fs/incfs/vfs.c:1587
 __dentry_kill+0x22b/0x5f0 fs/dcache.c:620
 dput+0x3f2/0x510 fs/dcache.c:857
 ovl_workdir_create+0x2bf/0x750 fs/overlayfs/super.c:304
 ovl_make_workdir fs/overlayfs/super.c:650 [inline]
 ovl_get_workdir+0x328/0x1650 fs/overlayfs/super.c:808
 ovl_fill_super+0x133f/0x36f0 fs/overlayfs/super.c:1381
 vfs_get_super fs/super.c:1283 [inline]
 get_tree_nodev+0xcb/0x170 fs/super.c:1302
 ovl_get_tree+0x20/0x30 fs/overlayfs/params.c:610
 vfs_get_tree+0x9e/0x290 fs/super.c:1817
 do_new_mount+0x251/0xb40 fs/namespace.c:3519
 path_mount+0x688/0x1050 fs/namespace.c:3846
 do_mount fs/namespace.c:3859 [inline]
 __do_sys_mount fs/namespace.c:4069 [inline]
 __se_sys_mount+0x2bd/0x480 fs/namespace.c:4046
 __x64_sys_mount+0xc3/0xf0 fs/namespace.c:4046
 x64_sys_call+0x2021/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f8e2118e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff98fd2868 EFLAGS: 00000246
 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f8e213b5fa0 RCX: 00007f8e2118e929
RDX: 0000200000000080 RSI: 00002000000000c0 RDI: 0000000000000000
RBP: 00007f8e21210b39 R08: 0000200000000340 R09: 0000000000000000
R10: 0000000001004040 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8e213b5fa0 R14: 00007f8e213b5fa0 R15: 0000000000000005
 </TASK>
---[ end trace 0000000000000000 ]---
overlayfs: failed to create directory ./bus/work (errno: 17); mounting read-only
overlayfs: maximum fs stacking depth exceeded

final repro crashed as (corrupted=false):
------------[ cut here ]------------
WARNING: CPU: 0 PID: 392 at fs/inode.c:340 drop_nlink+0xce/0x110 fs/inode.c:340
Modules linked in:
CPU: 0 UID: 0 PID: 392 Comm: syz.5.25 Not tainted 6.12.30-syzkaller-g21ed84930c16 #0 fa4558fba7fa11aa57b2c84caea5bf67b39b1b5f
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:drop_nlink+0xce/0x110 fs/inode.c:340
Code: 04 00 00 be 08 00 00 00 e8 cf 55 ee ff f0 48 ff 83 b8 04 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc e8 32 58 98 ff <0f> 0b eb 81 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 59 ff ff ff 4c
RSP: 0018:ffffc90002e6f0d0 EFLAGS: 00010293

RAX: ffffffff81ed527e RBX: ffff888130ec9040 RCX: ffff8881176a1300
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90002e6f0f8 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520005cde10 R12: dffffc0000000000
R13: 1ffff110261d9211 R14: ffff888130ec9088 R15: 0000000000000000
FS:  000055558c692500(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 0000000117272000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 simple_rmdir+0x153/0x260 fs/libfs.c:781
 vfs_rmdir+0x3dd/0x560 fs/namei.c:4340
 incfs_rmdir fs/incfs/vfs.c:649 [inline]
 dir_rmdir+0x236/0x320 fs/incfs/vfs.c:1352
 vfs_rmdir+0x3dd/0x560 fs/namei.c:4340
 incfs_rmdir fs/incfs/vfs.c:649 [inline]
 dir_rmdir+0x236/0x320 fs/incfs/vfs.c:1352
 vfs_rmdir+0x3dd/0x560 fs/namei.c:4340
 ovl_do_rmdir fs/overlayfs/overlayfs.h:209 [inline]
 ovl_workdir_cleanup+0x192/0x780 fs/overlayfs/readdir.c:1156
 ovl_workdir_create+0x2af/0x750 fs/overlayfs/super.c:303
 ovl_make_workdir fs/overlayfs/super.c:650 [inline]
 ovl_get_workdir+0x328/0x1650 fs/overlayfs/super.c:808
 ovl_fill_super+0x133f/0x36f0 fs/overlayfs/super.c:1381
 vfs_get_super fs/super.c:1283 [inline]
 get_tree_nodev+0xcb/0x170 fs/super.c:1302
 ovl_get_tree+0x20/0x30 fs/overlayfs/params.c:610
 vfs_get_tree+0x9e/0x290 fs/super.c:1817
 do_new_mount+0x251/0xb40 fs/namespace.c:3519
 path_mount+0x688/0x1050 fs/namespace.c:3846
 do_mount fs/namespace.c:3859 [inline]
 __do_sys_mount fs/namespace.c:4069 [inline]
 __se_sys_mount+0x2bd/0x480 fs/namespace.c:4046
 __x64_sys_mount+0xc3/0xf0 fs/namespace.c:4046
 x64_sys_call+0x2021/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f8e2118e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff98fd2868 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f8e213b5fa0 RCX: 00007f8e2118e929
RDX: 0000200000000080 RSI: 00002000000000c0 RDI: 0000000000000000
RBP: 00007f8e21210b39 R08: 0000200000000340 R09: 0000000000000000
R10: 0000000001004040 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8e213b5fa0 R14: 00007f8e213b5fa0 R15: 0000000000000005
 </TASK>
---[ end trace 0000000000000000 ]---
------------[ cut here ]------------
WARNING: CPU: 1 PID: 392 at fs/dcache.c:774 fast_dput fs/dcache.c:774 [inline]
WARNING: CPU: 1 PID: 392 at fs/dcache.c:774 dput+0x3cd/0x510 fs/dcache.c:851
Modules linked in:

CPU: 1 UID: 0 PID: 392 Comm: syz.5.25 Tainted: G        W          6.12.30-syzkaller-g21ed84930c16 #0 fa4558fba7fa11aa57b2c84caea5bf67b39b1b5f
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:fast_dput fs/dcache.c:774 [inline]
RIP: 0010:dput+0x3cd/0x510 fs/dcache.c:851
Code: 55 99 ff 48 b8 00 00 00 00 00 fc ff df 48 8b 4d d0 0f b6 04 01 84 c0 0f 85 21 01 00 00 80 0b 40 e9 a8 fe ff ff e8 93 55 99 ff <0f> 0b e9 9c fe ff ff e8 87 55 99 ff 48 89 df e8 2f 01 00 00 84 c0
RSP: 0018:ffffc90002e6f3b0 EFLAGS: 00010293

RAX: ffffffff81ec551d RBX: ffff888130e4c770 RCX: ffff8881176a1300
RDX: 0000000000000000 RSI: 00000000ffffff80 RDI: 0000000000000001
RBP: ffffc90002e6f3e0 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520005cde68 R12: 00000000ffffff80
R13: ffff888130e4c7f4 R14: ffff888130e4c7f0 R15: 1ffff110261c98fe
FS:  000055558c692500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001000 CR3: 0000000117272000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 path_put+0x3d/0x70 fs/namei.c:568
 dentry_release+0x53/0xb0 fs/incfs/vfs.c:1587
 __dentry_kill+0x22b/0x5f0 fs/dcache.c:620
 dput+0x3f2/0x510 fs/dcache.c:857
 path_put+0x3d/0x70 fs/namei.c:568
 dentry_release+0x53/0xb0 fs/incfs/vfs.c:1587
 __dentry_kill+0x22b/0x5f0 fs/dcache.c:620
 dput+0x3f2/0x510 fs/dcache.c:857
 ovl_workdir_create+0x2bf/0x750 fs/overlayfs/super.c:304
 ovl_make_workdir fs/overlayfs/super.c:650 [inline]
 ovl_get_workdir+0x328/0x1650 fs/overlayfs/super.c:808
 ovl_fill_super+0x133f/0x36f0 fs/overlayfs/super.c:1381
 vfs_get_super fs/super.c:1283 [inline]
 get_tree_nodev+0xcb/0x170 fs/super.c:1302
 ovl_get_tree+0x20/0x30 fs/overlayfs/params.c:610
 vfs_get_tree+0x9e/0x290 fs/super.c:1817
 do_new_mount+0x251/0xb40 fs/namespace.c:3519
 path_mount+0x688/0x1050 fs/namespace.c:3846
 do_mount fs/namespace.c:3859 [inline]
 __do_sys_mount fs/namespace.c:4069 [inline]
 __se_sys_mount+0x2bd/0x480 fs/namespace.c:4046
 __x64_sys_mount+0xc3/0xf0 fs/namespace.c:4046
 x64_sys_call+0x2021/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:166
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f8e2118e929
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff98fd2868 EFLAGS: 00000246
 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f8e213b5fa0 RCX: 00007f8e2118e929
RDX: 0000200000000080 RSI: 00002000000000c0 RDI: 0000000000000000
RBP: 00007f8e21210b39 R08: 0000200000000340 R09: 0000000000000000
R10: 0000000001004040 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8e213b5fa0 R14: 00007f8e213b5fa0 R15: 0000000000000005
 </TASK>
---[ end trace 0000000000000000 ]---
overlayfs: failed to create directory ./bus/work (errno: 17); mounting read-only
overlayfs: maximum fs stacking depth exceeded