Extracting prog: 1m6.423915308s
Minimizing prog: 4m1.86589028s
Simplifying prog options: 0s
Extracting C: 27.577848538s
Simplifying C: 10m45.006208536s
extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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}}): syz_mount_image$ext4-mount$incfs
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000600)='ext4\x00', &(0x7f0000001380)='./bus\x00', 0x8, &(0x7f00000012c0)={[], [], 0x2e}, 0x0, 0x450, &(0x7f00000014c0)="$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")
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
single: successfully extracted reproducer
found reproducer with 2 syscalls
minimizing guilty program
testing program (duration=33.489263049s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000600)='ext4\x00', &(0x7f0000001380)='./bus\x00', 0x8, &(0x7f00000012c0)={[], [], 0x2e}, 0x0, 0x450, &(0x7f00000014c0)="$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")
program did not crash
testing program (duration=33.489263049s, {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$incfs
detailed listing:
executing program 0:
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
program did not crash
testing program (duration=33.489263049s, {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}}): syz_mount_image$ext4-mount$incfs
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000600)='ext4\x00', &(0x7f0000001380)='./bus\x00', 0x8, &(0x7f00000012c0)={[], [], 0x2e}, 0x0, 0x450, &(0x7f00000014c0)="$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")
mount$incfs(0x0, &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
program did not crash
testing program (duration=33.489263049s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000600)='ext4\x00', &(0x7f0000001380)='./bus\x00', 0x8, &(0x7f00000012c0)={[], [], 0x2e}, 0x0, 0x450, &(0x7f00000014c0)="$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")
mount$incfs(&(0x7f00000007c0)='.\x00', 0x0, &(0x7f0000000840), 0x1004002, 0x0)
program did not crash
testing program (duration=33.489263049s, {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}}): syz_mount_image$ext4-mount$incfs
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000600)='ext4\x00', &(0x7f0000001380)='./bus\x00', 0x8, &(0x7f00000012c0)={[], [], 0x2e}, 0x0, 0x450, &(0x7f00000014c0)="$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")
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', 0x0, 0x1004002, 0x0)
program did not crash
extracting C reproducer
testing compiled C program (duration=33.489263049s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
simplifying C reproducer
testing compiled C program (duration=33.489263049s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing compiled C program (duration=33.489263049s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program did not crash
testing compiled C program (duration=33.489263049s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing compiled C program (duration=33.489263049s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program did not crash
testing compiled C program (duration=33.489263049s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing compiled C program (duration=33.489263049s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing compiled C program (duration=33.489263049s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing compiled C program (duration=33.489263049s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing compiled C program (duration=33.489263049s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing compiled C program (duration=33.489263049s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing compiled C program (duration=33.489263049s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program did not crash
testing compiled C program (duration=33.489263049s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing compiled C program (duration=33.489263049s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing compiled C program (duration=33.489263049s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
testing program (duration=33.489263049s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000600)='ext4\x00', &(0x7f0000001380)='./bus\x00', 0x8, &(0x7f00000012c0)={[], [], 0x2e}, 0x0, 0x450, &(0x7f00000014c0)="$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")
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
validation run: crashed=true
testing program (duration=33.489263049s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000600)='ext4\x00', &(0x7f0000001380)='./bus\x00', 0x8, &(0x7f00000012c0)={[], [], 0x2e}, 0x0, 0x450, &(0x7f00000014c0)="$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")
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
validation run: crashed=true
testing program (duration=33.489263049s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000600)='ext4\x00', &(0x7f0000001380)='./bus\x00', 0x8, &(0x7f00000012c0)={[], [], 0x2e}, 0x0, 0x450, &(0x7f00000014c0)="$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")
mount$incfs(&(0x7f00000007c0)='.\x00', &(0x7f0000000800)='./bus\x00', &(0x7f0000000840), 0x1004002, 0x0)
program crashed: KASAN: null-ptr-deref Write in vfs_rmdir
validation run: crashed=true
reproducing took 18m53.981900396s
repro crashed as (corrupted=false):
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f1f3a65a097
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffff5dca760
RBP: 00007ffff5dca760 R08: 00007ffff5dcb760 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffff5dcb7f0
R13: 00007f1f3a6ee2ca R14: 00000000000073df R15: 00007ffff5dcb830
---[ end trace a32d64be4de9c0cc ]---
==================================================================
BUG: KASAN: null-ptr-deref in instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
BUG: KASAN: null-ptr-deref in atomic_inc_return include/linux/atomic/atomic-instrumented.h:188 [inline]
BUG: KASAN: null-ptr-deref in ihold+0x20/0x60 fs/inode.c:454
Write of size 4 at addr 0000000000000170 by task syz-executor/368
CPU: 1 PID: 368 Comm: syz-executor Tainted: G W syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:88
dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
__kasan_report mm/kasan/report.c:431 [inline]
kasan_report+0xcc/0x150 mm/kasan/report.c:444
check_region_inline mm/kasan/generic.c:-1 [inline]
kasan_check_range+0x249/0x2a0 mm/kasan/generic.c:189
__kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37
instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
atomic_inc_return include/linux/atomic/atomic-instrumented.h:188 [inline]
ihold+0x20/0x60 fs/inode.c:454
d_delete_notify include/linux/fsnotify.h:275 [inline]
vfs_rmdir+0x23d/0x450 fs/namei.c:4170
incfs_kill_sb+0xfe/0x210 fs/incfs/vfs.c:1989
deactivate_locked_super+0xa0/0x100 fs/super.c:335
deactivate_super+0xaf/0xe0 fs/super.c:366
cleanup_mnt+0x44f/0x500 fs/namespace.c:1148
__cleanup_mnt+0x19/0x20 fs/namespace.c:1155
task_work_run+0x127/0x190 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:181
exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f1f3a65a097
Code: a2 c7 05 5c 06 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffff5dca6a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f1f3a65a097
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffff5dca760
RBP: 00007ffff5dca760 R08: 00007ffff5dcb760 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffff5dcb7f0
R13: 00007f1f3a6ee2ca R14: 00000000000073df R15: 00007ffff5dcb830
==================================================================
BUG: kernel NULL pointer dereference, address: 0000000000000170
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 12e236067 P4D 12e236067 PUD 0
Oops: 0002 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 368 Comm: syz-executor Tainted: G B W syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:arch_atomic_add_return arch/x86/include/asm/atomic.h:165 [inline]
RIP: 0010:arch_atomic_inc_return include/linux/atomic/atomic-arch-fallback.h:370 [inline]
RIP: 0010:atomic_inc_return include/linux/atomic/atomic-instrumented.h:189 [inline]
RIP: 0010:ihold+0x26/0x60 fs/inode.c:454
Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 e1 9f b2 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 50 03 f2 ff 41 be 01 00 00 00 44 0f c1 b3 70 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 61
RSP: 0018:ffffc90000aa7d10 EFLAGS: 00010246
RAX: ffff888110cdbb00 RBX: 0000000000000000 RCX: ffff888110cdbb40
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
RBP: ffffc90000aa7d20 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff0e18c4c R12: 1ffff11021a2626c
R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
FS: 0000555590740500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000170 CR3: 000000010dc8f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
d_delete_notify include/linux/fsnotify.h:275 [inline]
vfs_rmdir+0x23d/0x450 fs/namei.c:4170
incfs_kill_sb+0xfe/0x210 fs/incfs/vfs.c:1989
deactivate_locked_super+0xa0/0x100 fs/super.c:335
deactivate_super+0xaf/0xe0 fs/super.c:366
cleanup_mnt+0x44f/0x500 fs/namespace.c:1148
__cleanup_mnt+0x19/0x20 fs/namespace.c:1155
task_work_run+0x127/0x190 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:181
exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f1f3a65a097
Code: a2 c7 05 5c 06 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffff5dca6a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f1f3a65a097
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffff5dca760
RBP: 00007ffff5dca760 R08: 00007ffff5dcb760 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffff5dcb7f0
R13: 00007f1f3a6ee2ca R14: 00000000000073df R15: 00007ffff5dcb830
Modules linked in:
CR2: 0000000000000170
---[ end trace a32d64be4de9c0cd ]---
RIP: 0010:arch_atomic_add_return arch/x86/include/asm/atomic.h:165 [inline]
RIP: 0010:arch_atomic_inc_return include/linux/atomic/atomic-arch-fallback.h:370 [inline]
RIP: 0010:atomic_inc_return include/linux/atomic/atomic-instrumented.h:189 [inline]
RIP: 0010:ihold+0x26/0x60 fs/inode.c:454
Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 e1 9f b2 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 50 03 f2 ff 41 be 01 00 00 00 44 0f c1 b3 70 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 61
RSP: 0018:ffffc90000aa7d10 EFLAGS: 00010246
RAX: ffff888110cdbb00 RBX: 0000000000000000 RCX: ffff888110cdbb40
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
RBP: ffffc90000aa7d20 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff0e18c4c R12: 1ffff11021a2626c
R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
FS: 0000555590740500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000170 CR3: 000000010dc8f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 00 00 add %al,(%rax)
4: 55 push %rbp
5: 48 89 e5 mov %rsp,%rbp
8: 41 56 push %r14
a: 53 push %rbx
b: 48 89 fb mov %rdi,%rbx
e: e8 e1 9f b2 ff call 0xffb29ff4
13: 48 8d bb 70 01 00 00 lea 0x170(%rbx),%rdi
1a: be 04 00 00 00 mov $0x4,%esi
1f: e8 50 03 f2 ff call 0xfff20374
24: 41 be 01 00 00 00 mov $0x1,%r14d
* 2a: f0 44 0f c1 b3 70 01 lock xadd %r14d,0x170(%rbx) <-- trapping instruction
31: 00 00
33: 41 ff c6 inc %r14d
36: bf 02 00 00 00 mov $0x2,%edi
3b: 44 89 f6 mov %r14d,%esi
3e: e8 .byte 0xe8
3f: 61 (bad)
final repro crashed as (corrupted=false):
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f1f3a65a097
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffff5dca760
RBP: 00007ffff5dca760 R08: 00007ffff5dcb760 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffff5dcb7f0
R13: 00007f1f3a6ee2ca R14: 00000000000073df R15: 00007ffff5dcb830
---[ end trace a32d64be4de9c0cc ]---
==================================================================
BUG: KASAN: null-ptr-deref in instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
BUG: KASAN: null-ptr-deref in atomic_inc_return include/linux/atomic/atomic-instrumented.h:188 [inline]
BUG: KASAN: null-ptr-deref in ihold+0x20/0x60 fs/inode.c:454
Write of size 4 at addr 0000000000000170 by task syz-executor/368
CPU: 1 PID: 368 Comm: syz-executor Tainted: G W syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
Call Trace:
__dump_stack+0x21/0x30 lib/dump_stack.c:88
dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
__kasan_report mm/kasan/report.c:431 [inline]
kasan_report+0xcc/0x150 mm/kasan/report.c:444
check_region_inline mm/kasan/generic.c:-1 [inline]
kasan_check_range+0x249/0x2a0 mm/kasan/generic.c:189
__kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37
instrument_atomic_read_write include/linux/instrumented.h:101 [inline]
atomic_inc_return include/linux/atomic/atomic-instrumented.h:188 [inline]
ihold+0x20/0x60 fs/inode.c:454
d_delete_notify include/linux/fsnotify.h:275 [inline]
vfs_rmdir+0x23d/0x450 fs/namei.c:4170
incfs_kill_sb+0xfe/0x210 fs/incfs/vfs.c:1989
deactivate_locked_super+0xa0/0x100 fs/super.c:335
deactivate_super+0xaf/0xe0 fs/super.c:366
cleanup_mnt+0x44f/0x500 fs/namespace.c:1148
__cleanup_mnt+0x19/0x20 fs/namespace.c:1155
task_work_run+0x127/0x190 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:181
exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f1f3a65a097
Code: a2 c7 05 5c 06 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffff5dca6a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f1f3a65a097
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffff5dca760
RBP: 00007ffff5dca760 R08: 00007ffff5dcb760 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffff5dcb7f0
R13: 00007f1f3a6ee2ca R14: 00000000000073df R15: 00007ffff5dcb830
==================================================================
BUG: kernel NULL pointer dereference, address: 0000000000000170
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 12e236067 P4D 12e236067 PUD 0
Oops: 0002 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 368 Comm: syz-executor Tainted: G B W syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:arch_atomic_add_return arch/x86/include/asm/atomic.h:165 [inline]
RIP: 0010:arch_atomic_inc_return include/linux/atomic/atomic-arch-fallback.h:370 [inline]
RIP: 0010:atomic_inc_return include/linux/atomic/atomic-instrumented.h:189 [inline]
RIP: 0010:ihold+0x26/0x60 fs/inode.c:454
Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 e1 9f b2 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 50 03 f2 ff 41 be 01 00 00 00 44 0f c1 b3 70 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 61
RSP: 0018:ffffc90000aa7d10 EFLAGS: 00010246
RAX: ffff888110cdbb00 RBX: 0000000000000000 RCX: ffff888110cdbb40
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
RBP: ffffc90000aa7d20 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff0e18c4c R12: 1ffff11021a2626c
R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
FS: 0000555590740500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000170 CR3: 000000010dc8f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
d_delete_notify include/linux/fsnotify.h:275 [inline]
vfs_rmdir+0x23d/0x450 fs/namei.c:4170
incfs_kill_sb+0xfe/0x210 fs/incfs/vfs.c:1989
deactivate_locked_super+0xa0/0x100 fs/super.c:335
deactivate_super+0xaf/0xe0 fs/super.c:366
cleanup_mnt+0x44f/0x500 fs/namespace.c:1148
__cleanup_mnt+0x19/0x20 fs/namespace.c:1155
task_work_run+0x127/0x190 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0xd0/0xe0 kernel/entry/common.c:181
exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f1f3a65a097
Code: a2 c7 05 5c 06 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffff5dca6a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f1f3a65a097
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffff5dca760
RBP: 00007ffff5dca760 R08: 00007ffff5dcb760 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffff5dcb7f0
R13: 00007f1f3a6ee2ca R14: 00000000000073df R15: 00007ffff5dcb830
Modules linked in:
CR2: 0000000000000170
---[ end trace a32d64be4de9c0cd ]---
RIP: 0010:arch_atomic_add_return arch/x86/include/asm/atomic.h:165 [inline]
RIP: 0010:arch_atomic_inc_return include/linux/atomic/atomic-arch-fallback.h:370 [inline]
RIP: 0010:atomic_inc_return include/linux/atomic/atomic-instrumented.h:189 [inline]
RIP: 0010:ihold+0x26/0x60 fs/inode.c:454
Code: 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8 e1 9f b2 ff 48 8d bb 70 01 00 00 be 04 00 00 00 e8 50 03 f2 ff 41 be 01 00 00 00 44 0f c1 b3 70 01 00 00 41 ff c6 bf 02 00 00 00 44 89 f6 e8 61
RSP: 0018:ffffc90000aa7d10 EFLAGS: 00010246
RAX: ffff888110cdbb00 RBX: 0000000000000000 RCX: ffff888110cdbb40
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 00000000ffffffff
RBP: ffffc90000aa7d20 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffffbfff0e18c4c R12: 1ffff11021a2626c
R13: dffffc0000000000 R14: 0000000000000001 R15: 0000000000000000
FS: 0000555590740500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000170 CR3: 000000010dc8f000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 00 00 add %al,(%rax)
2: 00 00 add %al,(%rax)
4: 55 push %rbp
5: 48 89 e5 mov %rsp,%rbp
8: 41 56 push %r14
a: 53 push %rbx
b: 48 89 fb mov %rdi,%rbx
e: e8 e1 9f b2 ff call 0xffb29ff4
13: 48 8d bb 70 01 00 00 lea 0x170(%rbx),%rdi
1a: be 04 00 00 00 mov $0x4,%esi
1f: e8 50 03 f2 ff call 0xfff20374
24: 41 be 01 00 00 00 mov $0x1,%r14d
* 2a: f0 44 0f c1 b3 70 01 lock xadd %r14d,0x170(%rbx) <-- trapping instruction
31: 00 00
33: 41 ff c6 inc %r14d
36: bf 02 00 00 00 mov $0x2,%edi
3b: 44 89 f6 mov %r14d,%esi
3e: e8 .byte 0xe8
3f: 61 (bad)