Extracting prog: 32.330027459s
Minimizing prog: 19m20.05622616s
Simplifying prog options: 0s
Extracting C: 19.951944887s
Simplifying C: 4m5.549602737s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r3, &(0x7f0000000040), 0x12)
sendfile(r2, r3, 0x0, 0x4)

program crashed: possible deadlock in kernfs_seq_start
single: successfully extracted reproducer
found reproducer with 14 syscalls
minimizing guilty program
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r2 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r2, &(0x7f0000000040), 0x12)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
sendfile(r2, r3, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
write$cgroup_int(0xffffffffffffffff, &(0x7f0000000040), 0x12)
sendfile(r2, 0xffffffffffffffff, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r2, &(0x7f0000000040), 0x12)
sendfile(0xffffffffffffffff, r2, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
r0 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r1 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r1, &(0x7f0000000040), 0x12)
sendfile(r0, r1, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
splice(r0, 0x0, 0xffffffffffffffff, 0x0, 0xcd6, 0x0)
r1 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r2 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r2, &(0x7f0000000040), 0x12)
sendfile(r1, r2, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(0xffffffffffffffff, 0x0, r0, 0x0, 0xcd6, 0x0)
r1 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r2 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r2, &(0x7f0000000040), 0x12)
sendfile(r1, r2, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r3, &(0x7f0000000040), 0x12)
sendfile(r2, r3, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r3, &(0x7f0000000040), 0x12)
sendfile(r2, r3, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r3, &(0x7f0000000040), 0x12)
sendfile(r2, r3, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r3, &(0x7f0000000040), 0x12)
sendfile(r2, r3, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r3, &(0x7f0000000040), 0x12)
sendfile(r2, r3, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r3, &(0x7f0000000040), 0x12)
sendfile(r2, r3, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r3, &(0x7f0000000040), 0x12)
sendfile(r2, r3, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r3, &(0x7f0000000040), 0x12)
sendfile(r2, r3, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, 0x0, 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r3, &(0x7f0000000040), 0x12)
sendfile(r2, r3, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, 0x0, 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r3, &(0x7f0000000040), 0x12)
sendfile(r2, r3, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, 0x0, &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r3, &(0x7f0000000040), 0x12)
sendfile(r2, r3, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', 0x0, 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r3, &(0x7f0000000040), 0x12)
sendfile(r2, r3, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, 0x0)
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r3, &(0x7f0000000040), 0x12)
sendfile(r2, r3, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240))
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r3, &(0x7f0000000040), 0x12)
sendfile(r2, r3, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(0x0)
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r3, &(0x7f0000000040), 0x12)
sendfile(r2, r3, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(0x0, 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r3, &(0x7f0000000040), 0x12)
sendfile(r2, r3, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(0x0, 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r3, &(0x7f0000000040), 0x12)
sendfile(r2, r3, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(0x0, 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r3, &(0x7f0000000040), 0x12)
sendfile(r2, r3, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(0x0, 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r3, &(0x7f0000000040), 0x12)
sendfile(r2, r3, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(0x0, 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r3, &(0x7f0000000040), 0x12)
sendfile(r2, r3, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, 0x0, 0x149a82, 0x0)
write$cgroup_int(r3, &(0x7f0000000040), 0x12)
sendfile(r2, r3, 0x0, 0x4)

program did not crash
testing program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./file0\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file1\x00', 0x0)
mkdirat(0xffffffffffffff9c, &(0x7f00000000c0)='./bus\x00', 0x0)
mount$overlay(0x0, &(0x7f00000000c0)='./bus\x00', &(0x7f0000000340), 0x0, &(0x7f0000000240)={[{@workdir={'workdir', 0x3d, './bus'}}, {@lowerdir={'lowerdir', 0x3d, './file0'}}, {@upperdir={'upperdir', 0x3d, './file1'}}, {@metacopy_on}]})
chdir(&(0x7f0000000140)='./bus\x00')
open(&(0x7f0000000080)='./bus\x00', 0x141042, 0x0)
mknod(&(0x7f0000000040)='./file0\x00', 0x8001420, 0x0)
r0 = open$dir(&(0x7f0000000100)='./file0\x00', 0x2, 0x0)
r1 = open(&(0x7f0000000080)='./bus\x00', 0x42202, 0x0)
splice(r0, 0x0, r1, 0x0, 0xcd6, 0x0)
r2 = open$dir(&(0x7f0000000000)='./file0\x00', 0x10907e, 0x0)
r3 = openat$sysfs(0xffffffffffffff9c, &(0x7f00000002c0)='/sys/power/resume', 0x149a82, 0x0)
write$cgroup_int(r3, 0x0, 0x0)
sendfile(r2, r3, 0x0, 0x4)

program did not crash
extracting C reproducer
testing compiled C program (duration=34.758986374s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
program crashed: possible deadlock in kernfs_seq_start
simplifying C reproducer
testing compiled C program (duration=34.758986374s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
program did not crash
testing compiled C program (duration=34.758986374s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
program crashed: possible deadlock in kernfs_seq_start
testing compiled C program (duration=34.758986374s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
program crashed: possible deadlock in kernfs_seq_start
testing compiled C program (duration=34.758986374s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
program crashed: possible deadlock in kernfs_seq_start
testing compiled C program (duration=34.758986374s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
program crashed: possible deadlock in kernfs_seq_start
testing compiled C program (duration=34.758986374s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
program crashed: possible deadlock in kernfs_seq_start
testing compiled C program (duration=34.758986374s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mkdirat-mkdirat-mount$overlay-chdir-open-mknod-open$dir-open-splice-open$dir-openat$sysfs-write$cgroup_int-sendfile
program crashed: possible deadlock in kernfs_seq_start
reproducing took 24m17.887820251s
repro crashed as (corrupted=false):
======================================================
WARNING: possible circular locking dependency detected
6.13.0-rc5-syzkaller-00161-g63676eefb7a0 #0 Not tainted
------------------------------------------------------
syz-executor149/5935 is trying to acquire lock:
ffff88802574cc88 (&of->mutex){+.+.}-{4:4}, at: kernfs_seq_start+0x4d/0x240 fs/kernfs/file.c:154

but task is already holding lock:
ffff8880312c61c8 (&p->lock){+.+.}-{4:4}, at: seq_read_iter+0xd8/0x12b0 fs/seq_file.c:182

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #4 (&p->lock){+.+.}-{4:4}:
       __mutex_lock_common kernel/locking/mutex.c:585 [inline]
       __mutex_lock+0x19b/0xa60 kernel/locking/mutex.c:735
       seq_read_iter+0xd8/0x12b0 fs/seq_file.c:182
       kernfs_fop_read_iter+0x414/0x580 fs/kernfs/file.c:279
       copy_splice_read+0x620/0xb90 fs/splice.c:365
       do_splice_read fs/splice.c:985 [inline]
       do_splice_read+0x282/0x370 fs/splice.c:959
       splice_file_to_pipe+0x109/0x120 fs/splice.c:1295
       do_sendfile+0x3fd/0xe30 fs/read_write.c:1369
       __do_sys_sendfile64 fs/read_write.c:1424 [inline]
       __se_sys_sendfile64 fs/read_write.c:1410 [inline]
       __x64_sys_sendfile64+0x1da/0x220 fs/read_write.c:1410
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #3 (&pipe->mutex){+.+.}-{4:4}:
       __mutex_lock_common kernel/locking/mutex.c:585 [inline]
       __mutex_lock+0x19b/0xa60 kernel/locking/mutex.c:735
       pipe_lock fs/pipe.c:92 [inline]
       pipe_lock+0x64/0x80 fs/pipe.c:89
       iter_file_splice_write+0x1eb/0x10b0 fs/splice.c:687
       backing_file_splice_write+0x277/0x880 fs/backing-file.c:315
       ovl_splice_write+0x38e/0x630 fs/overlayfs/file.c:440
       do_splice_from fs/splice.c:941 [inline]
       do_splice+0x145c/0x1f60 fs/splice.c:1354
       __do_splice+0x327/0x360 fs/splice.c:1436
       __do_sys_splice fs/splice.c:1639 [inline]
       __se_sys_splice fs/splice.c:1621 [inline]
       __x64_sys_splice+0x187/0x250 fs/splice.c:1621
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #2 (sb_writers#5){.+.+}-{0:0}:
       percpu_down_read include/linux/percpu-rwsem.h:51 [inline]
       __sb_start_write include/linux/fs.h:1725 [inline]
       sb_start_write include/linux/fs.h:1861 [inline]
       mnt_want_write+0x6f/0x450 fs/namespace.c:515
       ovl_create_object+0x12e/0x300 fs/overlayfs/dir.c:656
       lookup_open.isra.0+0x1174/0x14c0 fs/namei.c:3649
       open_last_lookups fs/namei.c:3748 [inline]
       path_openat+0x904/0x2d60 fs/namei.c:3984
       do_filp_open+0x20c/0x470 fs/namei.c:4014
       do_sys_openat2+0x17a/0x1e0 fs/open.c:1402
       do_sys_open fs/open.c:1417 [inline]
       __do_sys_open fs/open.c:1425 [inline]
       __se_sys_open fs/open.c:1421 [inline]
       __x64_sys_open+0x154/0x1e0 fs/open.c:1421
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #1 (&ovl_i_mutex_dir_key[depth]){++++}-{4:4}:
       down_read+0x9a/0x330 kernel/locking/rwsem.c:1524
       inode_lock_shared include/linux/fs.h:828 [inline]
       lookup_slow fs/namei.c:1807 [inline]
       walk_component+0x342/0x5b0 fs/namei.c:2112
       lookup_last fs/namei.c:2610 [inline]
       path_lookupat+0x17f/0x770 fs/namei.c:2634
       filename_lookup+0x221/0x5f0 fs/namei.c:2663
       kern_path+0x35/0x50 fs/namei.c:2771
       lookup_bdev+0xd9/0x280 block/bdev.c:1163
       resume_store+0x1d8/0x460 kernel/power/hibernate.c:1242
       kobj_attr_store+0x55/0x80 lib/kobject.c:840
       sysfs_kf_write+0x117/0x170 fs/sysfs/file.c:139
       kernfs_fop_write_iter+0x33d/0x500 fs/kernfs/file.c:334
       new_sync_write fs/read_write.c:586 [inline]
       vfs_write+0x5ae/0x1150 fs/read_write.c:679
       ksys_write+0x12b/0x250 fs/read_write.c:731
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #0 (&of->mutex){+.+.}-{4:4}:
       check_prev_add kernel/locking/lockdep.c:3161 [inline]
       check_prevs_add kernel/locking/lockdep.c:3280 [inline]
       validate_chain kernel/locking/lockdep.c:3904 [inline]
       __lock_acquire+0x249e/0x3c40 kernel/locking/lockdep.c:5226
       lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849
       __mutex_lock_common kernel/locking/mutex.c:585 [inline]
       __mutex_lock+0x19b/0xa60 kernel/locking/mutex.c:735
       kernfs_seq_start+0x4d/0x240 fs/kernfs/file.c:154
       traverse.part.0.constprop.0+0xac/0x640 fs/seq_file.c:106
       traverse fs/seq_file.c:98 [inline]
       seq_read_iter+0x934/0x12b0 fs/seq_file.c:195
       kernfs_fop_read_iter+0x414/0x580 fs/kernfs/file.c:279
       copy_splice_read+0x620/0xb90 fs/splice.c:365
       do_splice_read fs/splice.c:985 [inline]
       do_splice_read+0x282/0x370 fs/splice.c:959
       splice_file_to_pipe+0x109/0x120 fs/splice.c:1295
       do_sendfile+0x3fd/0xe30 fs/read_write.c:1369
       __do_sys_sendfile64 fs/read_write.c:1424 [inline]
       __se_sys_sendfile64 fs/read_write.c:1410 [inline]
       __x64_sys_sendfile64+0x1da/0x220 fs/read_write.c:1410
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

other info that might help us debug this:

Chain exists of:
  &of->mutex --> &pipe->mutex --> &p->lock

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&p->lock);
                               lock(&pipe->mutex);
                               lock(&p->lock);
  lock(&of->mutex);

 *** DEADLOCK ***

2 locks held by syz-executor149/5935:
 #0: ffff888026585068 (&pipe->mutex){+.+.}-{4:4}, at: pipe_lock fs/pipe.c:92 [inline]
 #0: ffff888026585068 (&pipe->mutex){+.+.}-{4:4}, at: pipe_lock+0x64/0x80 fs/pipe.c:89
 #1: ffff8880312c61c8 (&p->lock){+.+.}-{4:4}, at: seq_read_iter+0xd8/0x12b0 fs/seq_file.c:182

stack backtrace:
CPU: 0 UID: 0 PID: 5935 Comm: syz-executor149 Not tainted 6.13.0-rc5-syzkaller-00161-g63676eefb7a0 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_circular_bug+0x419/0x5d0 kernel/locking/lockdep.c:2074
 check_noncircular+0x31a/0x400 kernel/locking/lockdep.c:2206
 check_prev_add kernel/locking/lockdep.c:3161 [inline]
 check_prevs_add kernel/locking/lockdep.c:3280 [inline]
 validate_chain kernel/locking/lockdep.c:3904 [inline]
 __lock_acquire+0x249e/0x3c40 kernel/locking/lockdep.c:5226
 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849
 __mutex_lock_common kernel/locking/mutex.c:585 [inline]
 __mutex_lock+0x19b/0xa60 kernel/locking/mutex.c:735
 kernfs_seq_start+0x4d/0x240 fs/kernfs/file.c:154
 traverse.part.0.constprop.0+0xac/0x640 fs/seq_file.c:106
 traverse fs/seq_file.c:98 [inline]
 seq_read_iter+0x934/0x12b0 fs/seq_file.c:195
 kernfs_fop_read_iter+0x414/0x580 fs/kernfs/file.c:279
 copy_splice_read+0x620/0xb90 fs/splice.c:365
 do_splice_read fs/splice.c:985 [inline]
 do_splice_read+0x282/0x370 fs/splice.c:959
 splice_file_to_pipe+0x109/0x120 fs/splice.c:1295
 do_sendfile+0x3fd/0xe30 fs/read_write.c:1369
 __do_sys_sendfile64 fs/read_write.c:1424 [inline]
 __se_sys_sendfile64 fs/read_write.c:1410 [inline]
 __x64_sys_sendfile64+0x1da/0x220 fs/read_write.c:1410
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6d5378b239
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6d53726218 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f6d53815418 RCX: 00007f6d5378b239
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006
RBP: 00007f6d53815410 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000246 R12: 00007f6d537e2024
R13: 0030656c69662f2e R14: 0079616c7265766f R15: 00007f6d537e2004
 </TASK>

final repro crashed as (corrupted=false):
======================================================
WARNING: possible circular locking dependency detected
6.13.0-rc5-syzkaller-00161-g63676eefb7a0 #0 Not tainted
------------------------------------------------------
syz-executor149/5935 is trying to acquire lock:
ffff88802574cc88 (&of->mutex){+.+.}-{4:4}, at: kernfs_seq_start+0x4d/0x240 fs/kernfs/file.c:154

but task is already holding lock:
ffff8880312c61c8 (&p->lock){+.+.}-{4:4}, at: seq_read_iter+0xd8/0x12b0 fs/seq_file.c:182

which lock already depends on the new lock.


the existing dependency chain (in reverse order) is:

-> #4 (&p->lock){+.+.}-{4:4}:
       __mutex_lock_common kernel/locking/mutex.c:585 [inline]
       __mutex_lock+0x19b/0xa60 kernel/locking/mutex.c:735
       seq_read_iter+0xd8/0x12b0 fs/seq_file.c:182
       kernfs_fop_read_iter+0x414/0x580 fs/kernfs/file.c:279
       copy_splice_read+0x620/0xb90 fs/splice.c:365
       do_splice_read fs/splice.c:985 [inline]
       do_splice_read+0x282/0x370 fs/splice.c:959
       splice_file_to_pipe+0x109/0x120 fs/splice.c:1295
       do_sendfile+0x3fd/0xe30 fs/read_write.c:1369
       __do_sys_sendfile64 fs/read_write.c:1424 [inline]
       __se_sys_sendfile64 fs/read_write.c:1410 [inline]
       __x64_sys_sendfile64+0x1da/0x220 fs/read_write.c:1410
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #3 (&pipe->mutex){+.+.}-{4:4}:
       __mutex_lock_common kernel/locking/mutex.c:585 [inline]
       __mutex_lock+0x19b/0xa60 kernel/locking/mutex.c:735
       pipe_lock fs/pipe.c:92 [inline]
       pipe_lock+0x64/0x80 fs/pipe.c:89
       iter_file_splice_write+0x1eb/0x10b0 fs/splice.c:687
       backing_file_splice_write+0x277/0x880 fs/backing-file.c:315
       ovl_splice_write+0x38e/0x630 fs/overlayfs/file.c:440
       do_splice_from fs/splice.c:941 [inline]
       do_splice+0x145c/0x1f60 fs/splice.c:1354
       __do_splice+0x327/0x360 fs/splice.c:1436
       __do_sys_splice fs/splice.c:1639 [inline]
       __se_sys_splice fs/splice.c:1621 [inline]
       __x64_sys_splice+0x187/0x250 fs/splice.c:1621
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #2 (sb_writers#5){.+.+}-{0:0}:
       percpu_down_read include/linux/percpu-rwsem.h:51 [inline]
       __sb_start_write include/linux/fs.h:1725 [inline]
       sb_start_write include/linux/fs.h:1861 [inline]
       mnt_want_write+0x6f/0x450 fs/namespace.c:515
       ovl_create_object+0x12e/0x300 fs/overlayfs/dir.c:656
       lookup_open.isra.0+0x1174/0x14c0 fs/namei.c:3649
       open_last_lookups fs/namei.c:3748 [inline]
       path_openat+0x904/0x2d60 fs/namei.c:3984
       do_filp_open+0x20c/0x470 fs/namei.c:4014
       do_sys_openat2+0x17a/0x1e0 fs/open.c:1402
       do_sys_open fs/open.c:1417 [inline]
       __do_sys_open fs/open.c:1425 [inline]
       __se_sys_open fs/open.c:1421 [inline]
       __x64_sys_open+0x154/0x1e0 fs/open.c:1421
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #1 (&ovl_i_mutex_dir_key[depth]){++++}-{4:4}:
       down_read+0x9a/0x330 kernel/locking/rwsem.c:1524
       inode_lock_shared include/linux/fs.h:828 [inline]
       lookup_slow fs/namei.c:1807 [inline]
       walk_component+0x342/0x5b0 fs/namei.c:2112
       lookup_last fs/namei.c:2610 [inline]
       path_lookupat+0x17f/0x770 fs/namei.c:2634
       filename_lookup+0x221/0x5f0 fs/namei.c:2663
       kern_path+0x35/0x50 fs/namei.c:2771
       lookup_bdev+0xd9/0x280 block/bdev.c:1163
       resume_store+0x1d8/0x460 kernel/power/hibernate.c:1242
       kobj_attr_store+0x55/0x80 lib/kobject.c:840
       sysfs_kf_write+0x117/0x170 fs/sysfs/file.c:139
       kernfs_fop_write_iter+0x33d/0x500 fs/kernfs/file.c:334
       new_sync_write fs/read_write.c:586 [inline]
       vfs_write+0x5ae/0x1150 fs/read_write.c:679
       ksys_write+0x12b/0x250 fs/read_write.c:731
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

-> #0 (&of->mutex){+.+.}-{4:4}:
       check_prev_add kernel/locking/lockdep.c:3161 [inline]
       check_prevs_add kernel/locking/lockdep.c:3280 [inline]
       validate_chain kernel/locking/lockdep.c:3904 [inline]
       __lock_acquire+0x249e/0x3c40 kernel/locking/lockdep.c:5226
       lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849
       __mutex_lock_common kernel/locking/mutex.c:585 [inline]
       __mutex_lock+0x19b/0xa60 kernel/locking/mutex.c:735
       kernfs_seq_start+0x4d/0x240 fs/kernfs/file.c:154
       traverse.part.0.constprop.0+0xac/0x640 fs/seq_file.c:106
       traverse fs/seq_file.c:98 [inline]
       seq_read_iter+0x934/0x12b0 fs/seq_file.c:195
       kernfs_fop_read_iter+0x414/0x580 fs/kernfs/file.c:279
       copy_splice_read+0x620/0xb90 fs/splice.c:365
       do_splice_read fs/splice.c:985 [inline]
       do_splice_read+0x282/0x370 fs/splice.c:959
       splice_file_to_pipe+0x109/0x120 fs/splice.c:1295
       do_sendfile+0x3fd/0xe30 fs/read_write.c:1369
       __do_sys_sendfile64 fs/read_write.c:1424 [inline]
       __se_sys_sendfile64 fs/read_write.c:1410 [inline]
       __x64_sys_sendfile64+0x1da/0x220 fs/read_write.c:1410
       do_syscall_x64 arch/x86/entry/common.c:52 [inline]
       do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
       entry_SYSCALL_64_after_hwframe+0x77/0x7f

other info that might help us debug this:

Chain exists of:
  &of->mutex --> &pipe->mutex --> &p->lock

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&p->lock);
                               lock(&pipe->mutex);
                               lock(&p->lock);
  lock(&of->mutex);

 *** DEADLOCK ***

2 locks held by syz-executor149/5935:
 #0: ffff888026585068 (&pipe->mutex){+.+.}-{4:4}, at: pipe_lock fs/pipe.c:92 [inline]
 #0: ffff888026585068 (&pipe->mutex){+.+.}-{4:4}, at: pipe_lock+0x64/0x80 fs/pipe.c:89
 #1: ffff8880312c61c8 (&p->lock){+.+.}-{4:4}, at: seq_read_iter+0xd8/0x12b0 fs/seq_file.c:182

stack backtrace:
CPU: 0 UID: 0 PID: 5935 Comm: syz-executor149 Not tainted 6.13.0-rc5-syzkaller-00161-g63676eefb7a0 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
 print_circular_bug+0x419/0x5d0 kernel/locking/lockdep.c:2074
 check_noncircular+0x31a/0x400 kernel/locking/lockdep.c:2206
 check_prev_add kernel/locking/lockdep.c:3161 [inline]
 check_prevs_add kernel/locking/lockdep.c:3280 [inline]
 validate_chain kernel/locking/lockdep.c:3904 [inline]
 __lock_acquire+0x249e/0x3c40 kernel/locking/lockdep.c:5226
 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849
 __mutex_lock_common kernel/locking/mutex.c:585 [inline]
 __mutex_lock+0x19b/0xa60 kernel/locking/mutex.c:735
 kernfs_seq_start+0x4d/0x240 fs/kernfs/file.c:154
 traverse.part.0.constprop.0+0xac/0x640 fs/seq_file.c:106
 traverse fs/seq_file.c:98 [inline]
 seq_read_iter+0x934/0x12b0 fs/seq_file.c:195
 kernfs_fop_read_iter+0x414/0x580 fs/kernfs/file.c:279
 copy_splice_read+0x620/0xb90 fs/splice.c:365
 do_splice_read fs/splice.c:985 [inline]
 do_splice_read+0x282/0x370 fs/splice.c:959
 splice_file_to_pipe+0x109/0x120 fs/splice.c:1295
 do_sendfile+0x3fd/0xe30 fs/read_write.c:1369
 __do_sys_sendfile64 fs/read_write.c:1424 [inline]
 __se_sys_sendfile64 fs/read_write.c:1410 [inline]
 __x64_sys_sendfile64+0x1da/0x220 fs/read_write.c:1410
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6d5378b239
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 c1 17 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6d53726218 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f6d53815418 RCX: 00007f6d5378b239
RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006
RBP: 00007f6d53815410 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000004 R11: 0000000000000246 R12: 00007f6d537e2024
R13: 0030656c69662f2e R14: 0079616c7265766f R15: 00007f6d537e2004
 </TASK>