Extracting prog: 23.865822662s
Minimizing prog: 14m14.489564746s
Simplifying prog options: 0s
Extracting C: 26.568487887s
Simplifying C: 4m30.608458913s


extracting reproducer from 62 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:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-syz_create_resource$binfmt-openat$binfmt-openat-write-openat-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./tracing\x00', &(0x7f0000000300)='tracefs\x00', 0x0, 0x0)
r0 = syz_create_resource$binfmt(&(0x7f0000000400)='./file0\x00')
openat$binfmt(0xffffffffffffff9c, r0, 0x241, 0x1ff)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./tracing/uprobe_events\x00', 0x1, 0x0)
write(r1, &(0x7f0000000700)='p:myevent ./file0:0x1', 0x15)
openat(0xffffffffffffff9c, &(0x7f0000000800)='./tracing/events/uprobes/myevent/enable\x00', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing/uprobe_events\x00', 0xe242, 0x48)

program crashed: general protection fault in tracing_release_file_tr
single: successfully extracted reproducer
found reproducer with 8 syscalls
minimizing guilty program
testing program (duration=30.832866621s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-syz_create_resource$binfmt-openat$binfmt-openat-write-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./tracing\x00', &(0x7f0000000300)='tracefs\x00', 0x0, 0x0)
r0 = syz_create_resource$binfmt(&(0x7f0000000400)='./file0\x00')
openat$binfmt(0xffffffffffffff9c, r0, 0x241, 0x1ff)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./tracing/uprobe_events\x00', 0x1, 0x0)
write(r1, &(0x7f0000000700)='p:myevent ./file0:0x1', 0x15)
openat(0xffffffffffffff9c, &(0x7f0000000800)='./tracing/events/uprobes/myevent/enable\x00', 0x1, 0x0)

program did not crash
testing program (duration=30.832866621s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-syz_create_resource$binfmt-openat$binfmt-openat-write-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./tracing\x00', &(0x7f0000000300)='tracefs\x00', 0x0, 0x0)
r0 = syz_create_resource$binfmt(&(0x7f0000000400)='./file0\x00')
openat$binfmt(0xffffffffffffff9c, r0, 0x241, 0x1ff)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./tracing/uprobe_events\x00', 0x1, 0x0)
write(r1, &(0x7f0000000700)='p:myevent ./file0:0x1', 0x15)
openat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing/uprobe_events\x00', 0xe242, 0x48)

program did not crash
testing program (duration=30.832866621s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-syz_create_resource$binfmt-openat$binfmt-openat-openat-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./tracing\x00', &(0x7f0000000300)='tracefs\x00', 0x0, 0x0)
r0 = syz_create_resource$binfmt(&(0x7f0000000400)='./file0\x00')
openat$binfmt(0xffffffffffffff9c, r0, 0x241, 0x1ff)
openat(0xffffffffffffff9c, &(0x7f0000000600)='./tracing/uprobe_events\x00', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000800)='./tracing/events/uprobes/myevent/enable\x00', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing/uprobe_events\x00', 0xe242, 0x48)

program did not crash
testing program (duration=30.832866621s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-syz_create_resource$binfmt-openat$binfmt-write-openat-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./tracing\x00', &(0x7f0000000300)='tracefs\x00', 0x0, 0x0)
r0 = syz_create_resource$binfmt(&(0x7f0000000400)='./file0\x00')
openat$binfmt(0xffffffffffffff9c, r0, 0x241, 0x1ff)
write(0xffffffffffffffff, &(0x7f0000000700)='p:myevent ./file0:0x1', 0x15)
openat(0xffffffffffffff9c, &(0x7f0000000800)='./tracing/events/uprobes/myevent/enable\x00', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing/uprobe_events\x00', 0xe242, 0x48)

program did not crash
testing program (duration=30.832866621s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-syz_create_resource$binfmt-openat-write-openat-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./tracing\x00', &(0x7f0000000300)='tracefs\x00', 0x0, 0x0)
syz_create_resource$binfmt(&(0x7f0000000400)='./file0\x00')
r0 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./tracing/uprobe_events\x00', 0x1, 0x0)
write(r0, &(0x7f0000000700)='p:myevent ./file0:0x1', 0x15)
openat(0xffffffffffffff9c, &(0x7f0000000800)='./tracing/events/uprobes/myevent/enable\x00', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing/uprobe_events\x00', 0xe242, 0x48)

program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
testing program (duration=30.832866621s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./tracing\x00', &(0x7f0000000300)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./tracing/uprobe_events\x00', 0x1, 0x0)
write(r0, &(0x7f0000000700)='p:myevent ./file0:0x1', 0x15)
openat(0xffffffffffffff9c, &(0x7f0000000800)='./tracing/events/uprobes/myevent/enable\x00', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing/uprobe_events\x00', 0xe242, 0x48)

program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
testing program (duration=30.832866621s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-write-openat-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./tracing\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./tracing/uprobe_events\x00', 0x1, 0x0)
write(r0, &(0x7f0000000700)='p:myevent ./file0:0x1', 0x15)
openat(0xffffffffffffff9c, &(0x7f0000000800)='./tracing/events/uprobes/myevent/enable\x00', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing/uprobe_events\x00', 0xe242, 0x48)

program did not crash
testing program (duration=30.832866621s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount-openat-write-openat-openat
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000200)='./tracing\x00', &(0x7f0000000300)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./tracing/uprobe_events\x00', 0x1, 0x0)
write(r0, &(0x7f0000000700)='p:myevent ./file0:0x1', 0x15)
openat(0xffffffffffffff9c, &(0x7f0000000800)='./tracing/events/uprobes/myevent/enable\x00', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing/uprobe_events\x00', 0xe242, 0x48)

program did not crash
testing program (duration=30.832866621s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000200)='./tracing\x00', &(0x7f0000000300)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./tracing/uprobe_events\x00', 0x1, 0x0)
write(r0, &(0x7f0000000700)='p:myevent ./file0:0x1', 0x15)
openat(0xffffffffffffff9c, &(0x7f0000000800)='./tracing/events/uprobes/myevent/enable\x00', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing/uprobe_events\x00', 0xe242, 0x48)

program did not crash
testing program (duration=30.832866621s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./tracing\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000300)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./tracing/uprobe_events\x00', 0x1, 0x0)
write(r0, &(0x7f0000000700)='p:myevent ./file0:0x1', 0x15)
openat(0xffffffffffffff9c, &(0x7f0000000800)='./tracing/events/uprobes/myevent/enable\x00', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing/uprobe_events\x00', 0xe242, 0x48)

program did not crash
testing program (duration=30.832866621s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./tracing\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./tracing/uprobe_events\x00', 0x1, 0x0)
write(r0, &(0x7f0000000700)='p:myevent ./file0:0x1', 0x15)
openat(0xffffffffffffff9c, &(0x7f0000000800)='./tracing/events/uprobes/myevent/enable\x00', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing/uprobe_events\x00', 0xe242, 0x48)

program did not crash
testing program (duration=30.832866621s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./tracing\x00', &(0x7f0000000300)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000700)='p:myevent ./file0:0x1', 0x15)
openat(0xffffffffffffff9c, &(0x7f0000000800)='./tracing/events/uprobes/myevent/enable\x00', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing/uprobe_events\x00', 0xe242, 0x48)

program did not crash
testing program (duration=30.832866621s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./tracing\x00', &(0x7f0000000300)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./tracing/uprobe_events\x00', 0x1, 0x0)
write(r0, 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000800)='./tracing/events/uprobes/myevent/enable\x00', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing/uprobe_events\x00', 0xe242, 0x48)

program did not crash
testing program (duration=30.832866621s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./tracing\x00', &(0x7f0000000300)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./tracing/uprobe_events\x00', 0x1, 0x0)
write(r0, &(0x7f0000000700), 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000800)='./tracing/events/uprobes/myevent/enable\x00', 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing/uprobe_events\x00', 0xe242, 0x48)

program did not crash
testing program (duration=30.832866621s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./tracing\x00', &(0x7f0000000300)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./tracing/uprobe_events\x00', 0x1, 0x0)
write(r0, &(0x7f0000000700)='p:myevent ./file0:0x1', 0x15)
openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000040)='./tracing/uprobe_events\x00', 0xe242, 0x48)

program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
testing program (duration=30.832866621s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./tracing\x00', &(0x7f0000000300)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./tracing/uprobe_events\x00', 0x1, 0x0)
write(r0, &(0x7f0000000700)='p:myevent ./file0:0x1', 0x15)
openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
openat(0xffffffffffffff9c, 0x0, 0xe242, 0x48)

program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
extracting C reproducer
testing compiled C program (duration=30.832866621s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-openat
program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
simplifying C reproducer
testing compiled C program (duration=30.832866621s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-openat
program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
testing compiled C program (duration=30.832866621s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-openat
program did not crash
testing compiled C program (duration=30.832866621s, {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 CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-openat
program did not crash
testing compiled C program (duration=30.832866621s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-openat
program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
testing compiled C program (duration=30.832866621s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-openat
program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
testing compiled C program (duration=30.832866621s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-openat
program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
testing compiled C program (duration=30.832866621s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-openat
program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
testing program (duration=30.832866621s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./tracing\x00', &(0x7f0000000300)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./tracing/uprobe_events\x00', 0x1, 0x0)
write(r0, &(0x7f0000000700)='p:myevent ./file0:0x1', 0x15)
openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
openat(0xffffffffffffff9c, 0x0, 0xe242, 0x48)

program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
validation run: crashed=true
testing program (duration=30.832866621s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./tracing\x00', &(0x7f0000000300)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./tracing/uprobe_events\x00', 0x1, 0x0)
write(r0, &(0x7f0000000700)='p:myevent ./file0:0x1', 0x15)
openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
openat(0xffffffffffffff9c, 0x0, 0xe242, 0x48)

program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
validation run: crashed=true
testing program (duration=30.832866621s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-openat-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./tracing\x00', 0x1ff)
mount(0x0, &(0x7f0000000200)='./tracing\x00', &(0x7f0000000300)='tracefs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./tracing/uprobe_events\x00', 0x1, 0x0)
write(r0, &(0x7f0000000700)='p:myevent ./file0:0x1', 0x15)
openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
openat(0xffffffffffffff9c, 0x0, 0xe242, 0x48)

program crashed: KASAN: slab-out-of-bounds Write in __trace_probe_log_err
validation run: crashed=true
reproducing took 21m19.767960084s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-out-of-bounds in __trace_probe_log_err+0x290/0x2a0 kernel/trace/trace_probe.c:199
Write of size 1 at addr ffff888118de917f by task syz.5.137/543

CPU: 1 PID: 543 Comm: syz.5.137 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 __dump_stack+0x21/0x24 lib/dump_stack.c:77
 dump_stack_lvl+0x1a7/0x208 lib/dump_stack.c:118
 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:435 [inline]
 kasan_report+0x100/0x140 mm/kasan/report.c:452
 __asan_report_store1_noabort+0x17/0x20 mm/kasan/report_generic.c:311
 __trace_probe_log_err+0x290/0x2a0 kernel/trace/trace_probe.c:199
 trace_uprobe_create+0x355/0xb90 kernel/trace/trace_uprobe.c:588
 create_or_delete_trace_uprobe+0x89/0xc0 kernel/trace/trace_uprobe.c:731
 trace_run_command kernel/trace/trace.c:9575 [inline]
 trace_parse_run_command+0x296/0x450 kernel/trace/trace.c:9634
 probes_write+0x34/0x40 kernel/trace/trace_uprobe.c:800
 vfs_write+0x344/0xd70 fs/read_write.c:603
 ksys_write+0x14a/0x260 fs/read_write.c:658
 __do_sys_write fs/read_write.c:670 [inline]
 __se_sys_write fs/read_write.c:667 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:667
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f9a849f7019
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd44d11768 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f9a84c7efa0 RCX: 00007f9a849f7019
RDX: 0000000000000015 RSI: 0000200000000700 RDI: 0000000000000003
RBP: 00007f9a84a8e00c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9a84c7efac R14: 00007f9a84c7efa0 R15: 00007f9a84c7efa0

Allocated by task 97:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:430 [inline]
 ____kasan_kmalloc mm/kasan/common.c:509 [inline]
 __kasan_kmalloc+0xd4/0x100 mm/kasan/common.c:518
 kasan_kmalloc include/linux/kasan.h:254 [inline]
 __kmalloc+0x19f/0x330 mm/slub.c:4038
 kmalloc include/linux/slab.h:560 [inline]
 shmem_initxattrs+0xd1/0x1f0 mm/shmem.c:3216
 security_inode_init_security+0x249/0x380 security/security.c:1033
 shmem_symlink+0xd0/0x4f0 mm/shmem.c:3123
 vfs_symlink+0x339/0x4c0 fs/namei.c:4107
 do_symlinkat+0x10e/0x3d0 fs/namei.c:4134
 __do_sys_symlink fs/namei.c:4153 [inline]
 __se_sys_symlink fs/namei.c:4151 [inline]
 __x64_sys_symlink+0x60/0x70 fs/namei.c:4151
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb

The buggy address belongs to the object at ffff888118de9140
 which belongs to the cache kmalloc-32 of size 32
The buggy address is located 31 bytes to the right of
 32-byte region [ffff888118de9140, ffff888118de9160)
The buggy address belongs to the page:
page:ffffea0004637a40 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888118de9600 pfn:0x118de9
flags: 0x4000000000000200(slab)
raw: 4000000000000200 ffffea00045fbe40 0000000600000006 ffff888100043980
raw: ffff888118de9600 0000000080400039 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY), pid 102, ts 6240402845, free_ts 0
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook mm/page_alloc.c:2456 [inline]
 prep_new_page+0x176/0x190 mm/page_alloc.c:2462
 get_page_from_freelist+0x225f/0x23f0 mm/page_alloc.c:4254
 __alloc_pages_nodemask+0x29a/0x640 mm/page_alloc.c:5384
 alloc_slab_page mm/slub.c:-1 [inline]
 allocate_slab mm/slub.c:1813 [inline]
 new_slab+0x84/0x3f0 mm/slub.c:1874
 new_slab_objects mm/slub.c:2632 [inline]
 ___slab_alloc+0x2f8/0x4c0 mm/slub.c:2796
 __slab_alloc+0x63/0xa0 mm/slub.c:2836
 slab_alloc_node mm/slub.c:2918 [inline]
 slab_alloc mm/slub.c:2960 [inline]
 __kmalloc_track_caller+0x1e4/0x310 mm/slub.c:4541
 kmemdup+0x26/0x60 mm/util.c:131
 sidtab_sid2str_get+0x137/0x2c0 security/selinux/ss/sidtab.c:615
 sidtab_entry_to_string security/selinux/ss/services.c:1291 [inline]
 security_sid_to_context_core+0x2ac/0x480 security/selinux/ss/services.c:1384
 security_sid_to_context_force+0x36/0x40 security/selinux/ss/services.c:1413
 selinux_inode_init_security+0x667/0x960 security/selinux/hooks.c:2937
 security_inode_init_security+0x166/0x380 security/security.c:1022
 shmem_mknod+0xbb/0x1c0 mm/shmem.c:2899
 shmem_create+0x2b/0x40 mm/shmem.c:2954
 lookup_open fs/namei.c:3255 [inline]
 open_last_lookups fs/namei.c:3325 [inline]
 path_openat+0x15ff/0x3040 fs/namei.c:3514
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888118de9000: fa fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
 ffff888118de9080: fa fb fb fb fc fc fc fc 00 00 01 fc fc fc fc fc
>ffff888118de9100: fb fb fb fb fc fc fc fc 00 00 01 fc fc fc fc fc
                                                                ^
 ffff888118de9180: 00 00 06 fc fc fc fc fc fa fb fb fb fc fc fc fc
 ffff888118de9200: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
==================================================================

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-out-of-bounds in __trace_probe_log_err+0x290/0x2a0 kernel/trace/trace_probe.c:199
Write of size 1 at addr ffff888118de917f by task syz.5.137/543

CPU: 1 PID: 543 Comm: syz.5.137 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 __dump_stack+0x21/0x24 lib/dump_stack.c:77
 dump_stack_lvl+0x1a7/0x208 lib/dump_stack.c:118
 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:435 [inline]
 kasan_report+0x100/0x140 mm/kasan/report.c:452
 __asan_report_store1_noabort+0x17/0x20 mm/kasan/report_generic.c:311
 __trace_probe_log_err+0x290/0x2a0 kernel/trace/trace_probe.c:199
 trace_uprobe_create+0x355/0xb90 kernel/trace/trace_uprobe.c:588
 create_or_delete_trace_uprobe+0x89/0xc0 kernel/trace/trace_uprobe.c:731
 trace_run_command kernel/trace/trace.c:9575 [inline]
 trace_parse_run_command+0x296/0x450 kernel/trace/trace.c:9634
 probes_write+0x34/0x40 kernel/trace/trace_uprobe.c:800
 vfs_write+0x344/0xd70 fs/read_write.c:603
 ksys_write+0x14a/0x260 fs/read_write.c:658
 __do_sys_write fs/read_write.c:670 [inline]
 __se_sys_write fs/read_write.c:667 [inline]
 __x64_sys_write+0x7b/0x90 fs/read_write.c:667
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f9a849f7019
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd44d11768 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f9a84c7efa0 RCX: 00007f9a849f7019
RDX: 0000000000000015 RSI: 0000200000000700 RDI: 0000000000000003
RBP: 00007f9a84a8e00c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f9a84c7efac R14: 00007f9a84c7efa0 R15: 00007f9a84c7efa0

Allocated by task 97:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:430 [inline]
 ____kasan_kmalloc mm/kasan/common.c:509 [inline]
 __kasan_kmalloc+0xd4/0x100 mm/kasan/common.c:518
 kasan_kmalloc include/linux/kasan.h:254 [inline]
 __kmalloc+0x19f/0x330 mm/slub.c:4038
 kmalloc include/linux/slab.h:560 [inline]
 shmem_initxattrs+0xd1/0x1f0 mm/shmem.c:3216
 security_inode_init_security+0x249/0x380 security/security.c:1033
 shmem_symlink+0xd0/0x4f0 mm/shmem.c:3123
 vfs_symlink+0x339/0x4c0 fs/namei.c:4107
 do_symlinkat+0x10e/0x3d0 fs/namei.c:4134
 __do_sys_symlink fs/namei.c:4153 [inline]
 __se_sys_symlink fs/namei.c:4151 [inline]
 __x64_sys_symlink+0x60/0x70 fs/namei.c:4151
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb

The buggy address belongs to the object at ffff888118de9140
 which belongs to the cache kmalloc-32 of size 32
The buggy address is located 31 bytes to the right of
 32-byte region [ffff888118de9140, ffff888118de9160)
The buggy address belongs to the page:
page:ffffea0004637a40 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff888118de9600 pfn:0x118de9
flags: 0x4000000000000200(slab)
raw: 4000000000000200 ffffea00045fbe40 0000000600000006 ffff888100043980
raw: ffff888118de9600 0000000080400039 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x12a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY), pid 102, ts 6240402845, free_ts 0
 set_page_owner include/linux/page_owner.h:35 [inline]
 post_alloc_hook mm/page_alloc.c:2456 [inline]
 prep_new_page+0x176/0x190 mm/page_alloc.c:2462
 get_page_from_freelist+0x225f/0x23f0 mm/page_alloc.c:4254
 __alloc_pages_nodemask+0x29a/0x640 mm/page_alloc.c:5384
 alloc_slab_page mm/slub.c:-1 [inline]
 allocate_slab mm/slub.c:1813 [inline]
 new_slab+0x84/0x3f0 mm/slub.c:1874
 new_slab_objects mm/slub.c:2632 [inline]
 ___slab_alloc+0x2f8/0x4c0 mm/slub.c:2796
 __slab_alloc+0x63/0xa0 mm/slub.c:2836
 slab_alloc_node mm/slub.c:2918 [inline]
 slab_alloc mm/slub.c:2960 [inline]
 __kmalloc_track_caller+0x1e4/0x310 mm/slub.c:4541
 kmemdup+0x26/0x60 mm/util.c:131
 sidtab_sid2str_get+0x137/0x2c0 security/selinux/ss/sidtab.c:615
 sidtab_entry_to_string security/selinux/ss/services.c:1291 [inline]
 security_sid_to_context_core+0x2ac/0x480 security/selinux/ss/services.c:1384
 security_sid_to_context_force+0x36/0x40 security/selinux/ss/services.c:1413
 selinux_inode_init_security+0x667/0x960 security/selinux/hooks.c:2937
 security_inode_init_security+0x166/0x380 security/security.c:1022
 shmem_mknod+0xbb/0x1c0 mm/shmem.c:2899
 shmem_create+0x2b/0x40 mm/shmem.c:2954
 lookup_open fs/namei.c:3255 [inline]
 open_last_lookups fs/namei.c:3325 [inline]
 path_openat+0x15ff/0x3040 fs/namei.c:3514
page_owner free stack trace missing

Memory state around the buggy address:
 ffff888118de9000: fa fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
 ffff888118de9080: fa fb fb fb fc fc fc fc 00 00 01 fc fc fc fc fc
>ffff888118de9100: fb fb fb fb fc fc fc fc 00 00 01 fc fc fc fc fc
                                                                ^
 ffff888118de9180: 00 00 06 fc fc fc fc fc fa fb fb fb fc fc fc fc
 ffff888118de9200: fb fb fb fb fc fc fc fc fb fb fb fb fc fc fc fc
==================================================================