Extracting prog: 2m29.084369793s
Minimizing prog: 30m35.837938846s
Simplifying prog options: 3m15.908673468s
Extracting C: 1m42.682846948s
Simplifying C: 0s


extracting reproducer from 38 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-prctl$auto-preadv$auto-read$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-mmap$auto-close_range$auto-openat$auto_mousedev_fops_mousedev-openat$auto_proc_sys_file_operations_proc_sysctl-unshare$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x4020009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000380)='/sys/devices/system/cpu/cpu1/hotplug/target\x00', 0x800, 0x0)
r1 = prctl$auto(0x6, 0x0, 0x0, 0x8, 0x0)
preadv$auto(r1, &(0x7f00000000c0)={&(0x7f0000000080)="09bb24ce2972209b9e8f4554e74243bdd50465c41abf9f5d969e6106c55f47204c45e60a7677e9e3d8", 0x1}, 0x7861, 0xffffffffffffffff, 0xa)
read$auto(r0, 0x0, 0x6)
r2 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r2, &(0x7f0000000200)={0x0, 0x7}, 0x3)
mmap$auto(0x0, 0x20009, 0x4000000000df, 0xeb1, 0x401, 0x8000)
close_range$auto(0x2, 0x8, 0x0)
openat$auto_mousedev_fops_mousedev(0xffffffffffffff9c, 0x0, 0x2, 0x0)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv6/conf/bridge_slave_1/disable_policy\x00', 0x8000, 0x0)
unshare$auto(0x40000080)

program crashed: WARNING in remove_proc_entry
single: successfully extracted reproducer
found reproducer with 12 syscalls
minimizing guilty program
testing program (duration=1m1.449168486s, {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}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-prctl$auto-preadv$auto-read$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-mmap$auto-close_range$auto-openat$auto_mousedev_fops_mousedev-openat$auto_proc_sys_file_operations_proc_sysctl
detailed listing:
executing program 0:
mmap$auto(0x0, 0x4020009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000380)='/sys/devices/system/cpu/cpu1/hotplug/target\x00', 0x800, 0x0)
r1 = prctl$auto(0x6, 0x0, 0x0, 0x8, 0x0)
preadv$auto(r1, &(0x7f00000000c0)={&(0x7f0000000080)="09bb24ce2972209b9e8f4554e74243bdd50465c41abf9f5d969e6106c55f47204c45e60a7677e9e3d8", 0x1}, 0x7861, 0xffffffffffffffff, 0xa)
read$auto(r0, 0x0, 0x6)
r2 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r2, &(0x7f0000000200)={0x0, 0x7}, 0x3)
mmap$auto(0x0, 0x20009, 0x4000000000df, 0xeb1, 0x401, 0x8000)
close_range$auto(0x2, 0x8, 0x0)
openat$auto_mousedev_fops_mousedev(0xffffffffffffff9c, 0x0, 0x2, 0x0)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv6/conf/bridge_slave_1/disable_policy\x00', 0x8000, 0x0)

program did not crash
testing program (duration=1m1.449168486s, {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}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-prctl$auto-preadv$auto-read$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-mmap$auto-close_range$auto-openat$auto_mousedev_fops_mousedev-unshare$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x4020009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000380)='/sys/devices/system/cpu/cpu1/hotplug/target\x00', 0x800, 0x0)
r1 = prctl$auto(0x6, 0x0, 0x0, 0x8, 0x0)
preadv$auto(r1, &(0x7f00000000c0)={&(0x7f0000000080)="09bb24ce2972209b9e8f4554e74243bdd50465c41abf9f5d969e6106c55f47204c45e60a7677e9e3d8", 0x1}, 0x7861, 0xffffffffffffffff, 0xa)
read$auto(r0, 0x0, 0x6)
r2 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r2, &(0x7f0000000200)={0x0, 0x7}, 0x3)
mmap$auto(0x0, 0x20009, 0x4000000000df, 0xeb1, 0x401, 0x8000)
close_range$auto(0x2, 0x8, 0x0)
openat$auto_mousedev_fops_mousedev(0xffffffffffffff9c, 0x0, 0x2, 0x0)
unshare$auto(0x40000080)

program did not crash
testing program (duration=1m1.449168486s, {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}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-prctl$auto-preadv$auto-read$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-mmap$auto-close_range$auto-openat$auto_proc_sys_file_operations_proc_sysctl-unshare$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x4020009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000380)='/sys/devices/system/cpu/cpu1/hotplug/target\x00', 0x800, 0x0)
r1 = prctl$auto(0x6, 0x0, 0x0, 0x8, 0x0)
preadv$auto(r1, &(0x7f00000000c0)={&(0x7f0000000080)="09bb24ce2972209b9e8f4554e74243bdd50465c41abf9f5d969e6106c55f47204c45e60a7677e9e3d8", 0x1}, 0x7861, 0xffffffffffffffff, 0xa)
read$auto(r0, 0x0, 0x6)
r2 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r2, &(0x7f0000000200)={0x0, 0x7}, 0x3)
mmap$auto(0x0, 0x20009, 0x4000000000df, 0xeb1, 0x401, 0x8000)
close_range$auto(0x2, 0x8, 0x0)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv6/conf/bridge_slave_1/disable_policy\x00', 0x8000, 0x0)
unshare$auto(0x40000080)

program crashed: WARNING in remove_proc_entry
testing program (duration=1m1.449168486s, {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}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-prctl$auto-preadv$auto-read$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-mmap$auto-openat$auto_proc_sys_file_operations_proc_sysctl-unshare$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x4020009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000380)='/sys/devices/system/cpu/cpu1/hotplug/target\x00', 0x800, 0x0)
r1 = prctl$auto(0x6, 0x0, 0x0, 0x8, 0x0)
preadv$auto(r1, &(0x7f00000000c0)={&(0x7f0000000080)="09bb24ce2972209b9e8f4554e74243bdd50465c41abf9f5d969e6106c55f47204c45e60a7677e9e3d8", 0x1}, 0x7861, 0xffffffffffffffff, 0xa)
read$auto(r0, 0x0, 0x6)
r2 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r2, &(0x7f0000000200)={0x0, 0x7}, 0x3)
mmap$auto(0x0, 0x20009, 0x4000000000df, 0xeb1, 0x401, 0x8000)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv6/conf/bridge_slave_1/disable_policy\x00', 0x8000, 0x0)
unshare$auto(0x40000080)

program did not crash
testing program (duration=1m1.449168486s, {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}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-prctl$auto-preadv$auto-read$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-close_range$auto-openat$auto_proc_sys_file_operations_proc_sysctl-unshare$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x4020009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000380)='/sys/devices/system/cpu/cpu1/hotplug/target\x00', 0x800, 0x0)
r1 = prctl$auto(0x6, 0x0, 0x0, 0x8, 0x0)
preadv$auto(r1, &(0x7f00000000c0)={&(0x7f0000000080)="09bb24ce2972209b9e8f4554e74243bdd50465c41abf9f5d969e6106c55f47204c45e60a7677e9e3d8", 0x1}, 0x7861, 0xffffffffffffffff, 0xa)
read$auto(r0, 0x0, 0x6)
r2 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r2, &(0x7f0000000200)={0x0, 0x7}, 0x3)
close_range$auto(0x2, 0x8, 0x0)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv6/conf/bridge_slave_1/disable_policy\x00', 0x8000, 0x0)
unshare$auto(0x40000080)

program crashed: WARNING in remove_proc_entry
testing program (duration=1m1.449168486s, {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}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-prctl$auto-preadv$auto-read$auto-openat$auto_proc_fail_nth_operations_base-close_range$auto-openat$auto_proc_sys_file_operations_proc_sysctl-unshare$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x4020009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000380)='/sys/devices/system/cpu/cpu1/hotplug/target\x00', 0x800, 0x0)
r1 = prctl$auto(0x6, 0x0, 0x0, 0x8, 0x0)
preadv$auto(r1, &(0x7f00000000c0)={&(0x7f0000000080)="09bb24ce2972209b9e8f4554e74243bdd50465c41abf9f5d969e6106c55f47204c45e60a7677e9e3d8", 0x1}, 0x7861, 0xffffffffffffffff, 0xa)
read$auto(r0, 0x0, 0x6)
openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
close_range$auto(0x2, 0x8, 0x0)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv6/conf/bridge_slave_1/disable_policy\x00', 0x8000, 0x0)
unshare$auto(0x40000080)

program did not crash
testing program (duration=1m1.449168486s, {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}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-prctl$auto-preadv$auto-read$auto-writev$auto-close_range$auto-openat$auto_proc_sys_file_operations_proc_sysctl-unshare$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x4020009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000380)='/sys/devices/system/cpu/cpu1/hotplug/target\x00', 0x800, 0x0)
r1 = prctl$auto(0x6, 0x0, 0x0, 0x8, 0x0)
preadv$auto(r1, &(0x7f00000000c0)={&(0x7f0000000080)="09bb24ce2972209b9e8f4554e74243bdd50465c41abf9f5d969e6106c55f47204c45e60a7677e9e3d8", 0x1}, 0x7861, 0xffffffffffffffff, 0xa)
read$auto(r0, 0x0, 0x6)
writev$auto(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x7}, 0x3)
close_range$auto(0x2, 0x8, 0x0)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv6/conf/bridge_slave_1/disable_policy\x00', 0x8000, 0x0)
unshare$auto(0x40000080)

program did not crash
testing program (duration=1m1.449168486s, {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}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-prctl$auto-preadv$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-close_range$auto-openat$auto_proc_sys_file_operations_proc_sysctl-unshare$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x4020009, 0xdf, 0xeb1, 0x401, 0x8000)
openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000380)='/sys/devices/system/cpu/cpu1/hotplug/target\x00', 0x800, 0x0)
r0 = prctl$auto(0x6, 0x0, 0x0, 0x8, 0x0)
preadv$auto(r0, &(0x7f00000000c0)={&(0x7f0000000080)="09bb24ce2972209b9e8f4554e74243bdd50465c41abf9f5d969e6106c55f47204c45e60a7677e9e3d8", 0x1}, 0x7861, 0xffffffffffffffff, 0xa)
r1 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r1, &(0x7f0000000200)={0x0, 0x7}, 0x3)
close_range$auto(0x2, 0x8, 0x0)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv6/conf/bridge_slave_1/disable_policy\x00', 0x8000, 0x0)
unshare$auto(0x40000080)

program did not crash
testing program (duration=1m1.449168486s, {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}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-prctl$auto-read$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-close_range$auto-openat$auto_proc_sys_file_operations_proc_sysctl-unshare$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x4020009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000380)='/sys/devices/system/cpu/cpu1/hotplug/target\x00', 0x800, 0x0)
prctl$auto(0x6, 0x0, 0x0, 0x8, 0x0)
read$auto(r0, 0x0, 0x6)
r1 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r1, &(0x7f0000000200)={0x0, 0x7}, 0x3)
close_range$auto(0x2, 0x8, 0x0)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv6/conf/bridge_slave_1/disable_policy\x00', 0x8000, 0x0)
unshare$auto(0x40000080)

program did not crash
testing program (duration=1m1.449168486s, {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}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-preadv$auto-read$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-close_range$auto-openat$auto_proc_sys_file_operations_proc_sysctl-unshare$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x4020009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000380)='/sys/devices/system/cpu/cpu1/hotplug/target\x00', 0x800, 0x0)
preadv$auto(0xffffffffffffffff, &(0x7f00000000c0)={&(0x7f0000000080)="09bb24ce2972209b9e8f4554e74243bdd50465c41abf9f5d969e6106c55f47204c45e60a7677e9e3d8", 0x1}, 0x7861, 0xffffffffffffffff, 0xa)
read$auto(r0, 0x0, 0x6)
r1 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r1, &(0x7f0000000200)={0x0, 0x7}, 0x3)
close_range$auto(0x2, 0x8, 0x0)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv6/conf/bridge_slave_1/disable_policy\x00', 0x8000, 0x0)
unshare$auto(0x40000080)

program did not crash
testing program (duration=1m1.449168486s, {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}}): mmap$auto-prctl$auto-preadv$auto-read$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-close_range$auto-openat$auto_proc_sys_file_operations_proc_sysctl-unshare$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x4020009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = prctl$auto(0x6, 0x0, 0x0, 0x8, 0x0)
preadv$auto(r0, &(0x7f00000000c0)={&(0x7f0000000080)="09bb24ce2972209b9e8f4554e74243bdd50465c41abf9f5d969e6106c55f47204c45e60a7677e9e3d8", 0x1}, 0x7861, 0xffffffffffffffff, 0xa)
read$auto(0xffffffffffffffff, 0x0, 0x6)
r1 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r1, &(0x7f0000000200)={0x0, 0x7}, 0x3)
close_range$auto(0x2, 0x8, 0x0)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv6/conf/bridge_slave_1/disable_policy\x00', 0x8000, 0x0)
unshare$auto(0x40000080)

program did not crash
testing program (duration=1m1.449168486s, {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}}): openat$auto_kernfs_file_fops_kernfs_internal-prctl$auto-preadv$auto-read$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-close_range$auto-openat$auto_proc_sys_file_operations_proc_sysctl-unshare$auto
detailed listing:
executing program 0:
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000380)='/sys/devices/system/cpu/cpu1/hotplug/target\x00', 0x800, 0x0)
r1 = prctl$auto(0x6, 0x0, 0x0, 0x8, 0x0)
preadv$auto(r1, &(0x7f00000000c0)={&(0x7f0000000080)="09bb24ce2972209b9e8f4554e74243bdd50465c41abf9f5d969e6106c55f47204c45e60a7677e9e3d8", 0x1}, 0x7861, 0xffffffffffffffff, 0xa)
read$auto(r0, 0x0, 0x6)
r2 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r2, &(0x7f0000000200)={0x0, 0x7}, 0x3)
close_range$auto(0x2, 0x8, 0x0)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv6/conf/bridge_slave_1/disable_policy\x00', 0x8000, 0x0)
unshare$auto(0x40000080)

program did not crash
testing program (duration=1m1.449168486s, {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}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-prctl$auto-preadv$auto-read$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-close_range$auto-openat$auto_proc_sys_file_operations_proc_sysctl-unshare$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x4020009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, 0x0, 0x800, 0x0)
r1 = prctl$auto(0x6, 0x0, 0x0, 0x8, 0x0)
preadv$auto(r1, &(0x7f00000000c0)={&(0x7f0000000080)="09bb24ce2972209b9e8f4554e74243bdd50465c41abf9f5d969e6106c55f47204c45e60a7677e9e3d8", 0x1}, 0x7861, 0xffffffffffffffff, 0xa)
read$auto(r0, 0x0, 0x6)
r2 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r2, &(0x7f0000000200)={0x0, 0x7}, 0x3)
close_range$auto(0x2, 0x8, 0x0)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv6/conf/bridge_slave_1/disable_policy\x00', 0x8000, 0x0)
unshare$auto(0x40000080)

program did not crash
testing program (duration=1m1.449168486s, {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}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-prctl$auto-preadv$auto-read$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-close_range$auto-openat$auto_proc_sys_file_operations_proc_sysctl-unshare$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x4020009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000380)='/sys/devices/system/cpu/cpu1/hotplug/target\x00', 0x800, 0x0)
r1 = prctl$auto(0x6, 0x0, 0x0, 0x8, 0x0)
preadv$auto(r1, 0x0, 0x7861, 0xffffffffffffffff, 0xa)
read$auto(r0, 0x0, 0x6)
r2 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r2, &(0x7f0000000200)={0x0, 0x7}, 0x3)
close_range$auto(0x2, 0x8, 0x0)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv6/conf/bridge_slave_1/disable_policy\x00', 0x8000, 0x0)
unshare$auto(0x40000080)

program did not crash
testing program (duration=1m1.449168486s, {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}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-prctl$auto-preadv$auto-read$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-close_range$auto-openat$auto_proc_sys_file_operations_proc_sysctl-unshare$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x4020009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000380)='/sys/devices/system/cpu/cpu1/hotplug/target\x00', 0x800, 0x0)
r1 = prctl$auto(0x6, 0x0, 0x0, 0x8, 0x0)
preadv$auto(r1, &(0x7f00000000c0)={0x0, 0x1}, 0x7861, 0xffffffffffffffff, 0xa)
read$auto(r0, 0x0, 0x6)
r2 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r2, &(0x7f0000000200)={0x0, 0x7}, 0x3)
close_range$auto(0x2, 0x8, 0x0)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv6/conf/bridge_slave_1/disable_policy\x00', 0x8000, 0x0)
unshare$auto(0x40000080)

program did not crash
testing program (duration=1m1.449168486s, {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}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-prctl$auto-preadv$auto-read$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-close_range$auto-openat$auto_proc_sys_file_operations_proc_sysctl-unshare$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x4020009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000380)='/sys/devices/system/cpu/cpu1/hotplug/target\x00', 0x800, 0x0)
r1 = prctl$auto(0x6, 0x0, 0x0, 0x8, 0x0)
preadv$auto(r1, &(0x7f00000000c0)={&(0x7f0000000080), 0x1}, 0x7861, 0xffffffffffffffff, 0xa)
read$auto(r0, 0x0, 0x6)
r2 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r2, &(0x7f0000000200)={0x0, 0x7}, 0x3)
close_range$auto(0x2, 0x8, 0x0)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv6/conf/bridge_slave_1/disable_policy\x00', 0x8000, 0x0)
unshare$auto(0x40000080)

program crashed: WARNING in remove_proc_entry
testing program (duration=1m1.449168486s, {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}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-prctl$auto-preadv$auto-read$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-close_range$auto-openat$auto_proc_sys_file_operations_proc_sysctl-unshare$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x4020009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000380)='/sys/devices/system/cpu/cpu1/hotplug/target\x00', 0x800, 0x0)
r1 = prctl$auto(0x6, 0x0, 0x0, 0x8, 0x0)
preadv$auto(r1, &(0x7f00000000c0)={&(0x7f0000000080), 0x1}, 0x7861, 0xffffffffffffffff, 0xa)
read$auto(r0, 0x0, 0x6)
r2 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, 0x0, 0x802, 0x0)
writev$auto(r2, &(0x7f0000000200)={0x0, 0x7}, 0x3)
close_range$auto(0x2, 0x8, 0x0)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv6/conf/bridge_slave_1/disable_policy\x00', 0x8000, 0x0)
unshare$auto(0x40000080)

program did not crash
testing program (duration=1m1.449168486s, {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}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-prctl$auto-preadv$auto-read$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-close_range$auto-openat$auto_proc_sys_file_operations_proc_sysctl-unshare$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x4020009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000380)='/sys/devices/system/cpu/cpu1/hotplug/target\x00', 0x800, 0x0)
r1 = prctl$auto(0x6, 0x0, 0x0, 0x8, 0x0)
preadv$auto(r1, &(0x7f00000000c0)={&(0x7f0000000080), 0x1}, 0x7861, 0xffffffffffffffff, 0xa)
read$auto(r0, 0x0, 0x6)
r2 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r2, 0x0, 0x3)
close_range$auto(0x2, 0x8, 0x0)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv6/conf/bridge_slave_1/disable_policy\x00', 0x8000, 0x0)
unshare$auto(0x40000080)

program did not crash
testing program (duration=1m1.449168486s, {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}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-prctl$auto-preadv$auto-read$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-close_range$auto-openat$auto_proc_sys_file_operations_proc_sysctl-unshare$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x4020009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000380)='/sys/devices/system/cpu/cpu1/hotplug/target\x00', 0x800, 0x0)
r1 = prctl$auto(0x6, 0x0, 0x0, 0x8, 0x0)
preadv$auto(r1, &(0x7f00000000c0)={&(0x7f0000000080), 0x1}, 0x7861, 0xffffffffffffffff, 0xa)
read$auto(r0, 0x0, 0x6)
r2 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r2, &(0x7f0000000200)={0x0, 0x7}, 0x3)
close_range$auto(0x2, 0x8, 0x0)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, 0x0, 0x8000, 0x0)
unshare$auto(0x40000080)

program did not crash
extracting C reproducer
testing compiled C program (duration=1m1.449168486s, {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}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-prctl$auto-preadv$auto-read$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-close_range$auto-openat$auto_proc_sys_file_operations_proc_sysctl-unshare$auto
program did not crash
simplifying guilty program options
testing program (duration=1m1.449168486s, {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}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-prctl$auto-preadv$auto-read$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-close_range$auto-openat$auto_proc_sys_file_operations_proc_sysctl-unshare$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x4020009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000380)='/sys/devices/system/cpu/cpu1/hotplug/target\x00', 0x800, 0x0)
r1 = prctl$auto(0x6, 0x0, 0x0, 0x8, 0x0)
preadv$auto(r1, &(0x7f00000000c0)={&(0x7f0000000080), 0x1}, 0x7861, 0xffffffffffffffff, 0xa)
read$auto(r0, 0x0, 0x6)
r2 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r2, &(0x7f0000000200)={0x0, 0x7}, 0x3)
close_range$auto(0x2, 0x8, 0x0)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv6/conf/bridge_slave_1/disable_policy\x00', 0x8000, 0x0)
unshare$auto(0x40000080)

program did not crash
testing program (duration=1m1.449168486s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap$auto-openat$auto_kernfs_file_fops_kernfs_internal-prctl$auto-preadv$auto-read$auto-openat$auto_proc_fail_nth_operations_base-writev$auto-close_range$auto-openat$auto_proc_sys_file_operations_proc_sysctl-unshare$auto
detailed listing:
executing program 0:
mmap$auto(0x0, 0x4020009, 0xdf, 0xeb1, 0x401, 0x8000)
r0 = openat$auto_kernfs_file_fops_kernfs_internal(0xffffffffffffff9c, &(0x7f0000000380)='/sys/devices/system/cpu/cpu1/hotplug/target\x00', 0x800, 0x0)
r1 = prctl$auto(0x6, 0x0, 0x0, 0x8, 0x0)
preadv$auto(r1, &(0x7f00000000c0)={&(0x7f0000000080), 0x1}, 0x7861, 0xffffffffffffffff, 0xa)
read$auto(r0, 0x0, 0x6)
r2 = openat$auto_proc_fail_nth_operations_base(0xffffffffffffff9c, &(0x7f0000000000)='/proc/thread-self/fail-nth\x00', 0x802, 0x0)
writev$auto(r2, &(0x7f0000000200)={0x0, 0x7}, 0x3)
close_range$auto(0x2, 0x8, 0x0)
openat$auto_proc_sys_file_operations_proc_sysctl(0xffffffffffffff9c, &(0x7f0000000040)='/proc/sys/net/ipv6/conf/bridge_slave_1/disable_policy\x00', 0x8000, 0x0)
unshare$auto(0x40000080)

program did not crash
reproducing took 38m3.51384986s
repro crashed as (corrupted=false):
------------[ cut here ]------------
name 'nfsd'
WARNING: CPU: 0 PID: 3118 at fs/proc/generic.c:713 remove_proc_entry+0x268/0x470 fs/proc/generic.c:713
Modules linked in:
CPU: 0 UID: 0 PID: 3118 Comm: kworker/u8:6 Not tainted 6.14.0-rc1-syzkaller-00081-gbb066fe812d6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Workqueue: netns cleanup_net
RIP: 0010:remove_proc_entry+0x268/0x470 fs/proc/generic.c:713
Code: 08 eb a2 e8 1a 9c 62 ff 48 c7 c7 20 7e 41 8e e8 4e d4 f2 08 e8 09 9c 62 ff 90 48 c7 c7 c0 db 81 8b 4c 89 e6 e8 29 76 23 ff 90 <0f> 0b 90 90 e9 72 ff ff ff e8 ea 9b 62 ff 49 8d be 98 00 00 00 48
RSP: 0018:ffffc9000bd1fa80 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 1ffff920017a3f52 RCX: ffffffff8179c889
RDX: ffff88803090da00 RSI: ffffffff8179c896 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffffffff8b8f7460
R13: dffffc0000000000 R14: ffff888075e88000 R15: fffffbfff1cb7dc4
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555923f3808 CR3: 000000002a252000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 nfsd_net_exit+0x27/0x50 fs/nfsd/nfsctl.c:2259
 ops_exit_list+0xb0/0x180 net/core/net_namespace.c:172
 cleanup_net+0x5c6/0xbf0 net/core/net_namespace.c:652
 process_one_work+0x958/0x1b30 kernel/workqueue.c:3236
 process_scheduled_works kernel/workqueue.c:3317 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3398
 kthread+0x3af/0x750 kernel/kthread.c:464
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>

final repro crashed as (corrupted=false):
------------[ cut here ]------------
name 'nfsd'
WARNING: CPU: 0 PID: 3118 at fs/proc/generic.c:713 remove_proc_entry+0x268/0x470 fs/proc/generic.c:713
Modules linked in:
CPU: 0 UID: 0 PID: 3118 Comm: kworker/u8:6 Not tainted 6.14.0-rc1-syzkaller-00081-gbb066fe812d6 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Workqueue: netns cleanup_net
RIP: 0010:remove_proc_entry+0x268/0x470 fs/proc/generic.c:713
Code: 08 eb a2 e8 1a 9c 62 ff 48 c7 c7 20 7e 41 8e e8 4e d4 f2 08 e8 09 9c 62 ff 90 48 c7 c7 c0 db 81 8b 4c 89 e6 e8 29 76 23 ff 90 <0f> 0b 90 90 e9 72 ff ff ff e8 ea 9b 62 ff 49 8d be 98 00 00 00 48
RSP: 0018:ffffc9000bd1fa80 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 1ffff920017a3f52 RCX: ffffffff8179c889
RDX: ffff88803090da00 RSI: ffffffff8179c896 RDI: 0000000000000001
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffffffff8b8f7460
R13: dffffc0000000000 R14: ffff888075e88000 R15: fffffbfff1cb7dc4
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005555923f3808 CR3: 000000002a252000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 nfsd_net_exit+0x27/0x50 fs/nfsd/nfsctl.c:2259
 ops_exit_list+0xb0/0x180 net/core/net_namespace.c:172
 cleanup_net+0x5c6/0xbf0 net/core/net_namespace.c:652
 process_one_work+0x958/0x1b30 kernel/workqueue.c:3236
 process_scheduled_works kernel/workqueue.c:3317 [inline]
 worker_thread+0x6c8/0xf00 kernel/workqueue.c:3398
 kthread+0x3af/0x750 kernel/kthread.c:464
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>