Extracting prog: 1m23.320742488s
Minimizing prog: 6m13.832457119s
Simplifying prog options: 0s
Extracting C: 25.331032202s
Simplifying C: 10m51.039594984s


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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs-unlink
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file0\x00', 0x0, &(0x7f00000002c0)={[{@noauto_da_alloc}, {@jqfmt_vfsold}, {@noquota}, {@norecovery}, {}]}, 0x1, 0x4be, &(0x7f0000000540)="$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")
mount$incfs(&(0x7f0000000140)='./file0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000040), 0x0, 0x0)
unlink(&(0x7f00000003c0)='./file3\x00')

program crashed: kernel BUG in may_delete
single: successfully extracted reproducer
found reproducer with 3 syscalls
minimizing guilty program
testing program (duration=37.449884487s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file0\x00', 0x0, &(0x7f00000002c0)={[{@noauto_da_alloc}, {@jqfmt_vfsold}, {@noquota}, {@norecovery}, {}]}, 0x1, 0x4be, &(0x7f0000000540)="$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")
mount$incfs(&(0x7f0000000140)='./file0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000040), 0x0, 0x0)

program did not crash
testing program (duration=37.449884487s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-unlink
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file0\x00', 0x0, &(0x7f00000002c0)={[{@noauto_da_alloc}, {@jqfmt_vfsold}, {@noquota}, {@norecovery}, {}]}, 0x1, 0x4be, &(0x7f0000000540)="$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")
unlink(&(0x7f00000003c0)='./file3\x00')

program did not crash
testing program (duration=37.449884487s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount$incfs-unlink
detailed listing:
executing program 0:
mount$incfs(&(0x7f0000000140)='./file0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000040), 0x0, 0x0)
unlink(&(0x7f00000003c0)='./file3\x00')

program did not crash
testing program (duration=37.449884487s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs-unlink
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file0\x00', 0x0, &(0x7f00000002c0)={[{@noauto_da_alloc}, {@jqfmt_vfsold}, {@noquota}, {@norecovery}, {}]}, 0x1, 0x4be, &(0x7f0000000540)="$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")
mount$incfs(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000040), 0x0, 0x0)
unlink(&(0x7f00000003c0)='./file3\x00')

program did not crash
testing program (duration=37.449884487s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs-unlink
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file0\x00', 0x0, &(0x7f00000002c0)={[{@noauto_da_alloc}, {@jqfmt_vfsold}, {@noquota}, {@norecovery}, {}]}, 0x1, 0x4be, &(0x7f0000000540)="$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")
mount$incfs(&(0x7f0000000140)='./file0\x00', 0x0, &(0x7f0000000040), 0x0, 0x0)
unlink(&(0x7f00000003c0)='./file3\x00')

program did not crash
testing program (duration=37.449884487s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs-unlink
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file0\x00', 0x0, &(0x7f00000002c0)={[{@noauto_da_alloc}, {@jqfmt_vfsold}, {@noquota}, {@norecovery}, {}]}, 0x1, 0x4be, &(0x7f0000000540)="$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")
mount$incfs(&(0x7f0000000140)='./file0\x00', &(0x7f0000000100)='./file0\x00', 0x0, 0x0, 0x0)
unlink(&(0x7f00000003c0)='./file3\x00')

program did not crash
testing program (duration=37.449884487s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs-unlink
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000004c0)='ext4\x00', &(0x7f0000000500)='./file0\x00', 0x0, &(0x7f00000002c0)={[{@noauto_da_alloc}, {@jqfmt_vfsold}, {@noquota}, {@norecovery}, {}]}, 0x1, 0x4be, &(0x7f0000000540)="$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")
mount$incfs(&(0x7f0000000140)='./file0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000040), 0x0, 0x0)
unlink(0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=37.449884487s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs-unlink
program crashed: kernel BUG in may_delete
simplifying C reproducer
testing compiled C program (duration=37.449884487s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs-unlink
program crashed: kernel BUG in may_delete
testing compiled C program (duration=37.449884487s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs-unlink
program crashed: kernel BUG in may_delete
testing compiled C program (duration=37.449884487s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs-unlink
program did not crash
testing compiled C program (duration=37.449884487s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs-unlink
program crashed: kernel BUG in may_delete
testing compiled C program (duration=37.449884487s, {Threaded:false Repeat:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs-unlink
program crashed: kernel BUG in may_delete
testing compiled C program (duration=37.449884487s, {Threaded:false Repeat:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs-unlink
program crashed: kernel BUG in may_delete
testing compiled C program (duration=37.449884487s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs-unlink
program crashed: kernel BUG in may_delete
testing compiled C program (duration=37.449884487s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none 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:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs-unlink
program crashed: kernel BUG in may_delete
testing compiled C program (duration=37.449884487s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none 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:true UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs-unlink
program crashed: kernel BUG in may_delete
testing compiled C program (duration=37.449884487s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none 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:true UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs-unlink
program crashed: kernel BUG in may_delete
testing compiled C program (duration=37.449884487s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none 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:true UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs-unlink
program crashed: kernel BUG in may_delete
testing compiled C program (duration=37.449884487s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs-unlink
program crashed: kernel BUG in may_delete
reproducing took 18m53.523842843s
repro crashed as (corrupted=false):
EXT4-fs (loop0): mounted filesystem without journal. Opts: noauto_da_alloc,jqfmt=vfsold,noquota,norecovery,bsddf,,errors=continue
ext4 filesystem being mounted at /file0 supports timestamps until (%ptR?) (0x7fffffff)
------------[ cut here ]------------
kernel BUG at fs/namei.c:2894!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 358 Comm: syz-executor197 Not tainted 5.4.290-syzkaller-00002-g41adfeb3d639 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:may_delete+0x750/0x760 fs/namei.c:2894
Code: 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c e8 fd ff ff 4c 89 e7 e8 31 0d f6 ff e9 db fd ff ff e8 07 23 c6 ff 0f 0b e8 00 23 c6 ff <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41 56 53 48 89 fb
RSP: 0018:ffff8881eede7a68 EFLAGS: 00010293
RAX: ffffffff819e2800 RBX: ffff8881dceadde8 RCX: ffff8881f37dbf00
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffff8881dcead9c0 R08: ffffffff819e2128 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff8881dceaddd0
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff8881dce91ff0
FS:  0000555592b0f380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5dd722e130 CR3: 0000000005e0e000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 vfs_rmdir+0x29/0x3c0 fs/namei.c:4008
 incfs_kill_sb+0x105/0x200 fs/incfs/vfs.c:1944
 deactivate_locked_super+0xa8/0x110 fs/super.c:335
 deactivate_super+0x1e2/0x2a0 fs/super.c:366
 cleanup_mnt+0x44e/0x500 fs/namespace.c:1102
 task_work_run+0x140/0x170 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0xcaf/0x2bc0 kernel/exit.c:861
 do_group_exit+0x138/0x300 kernel/exit.c:984
 __do_sys_exit_group kernel/exit.c:995 [inline]
 __se_sys_exit_group kernel/exit.c:993 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:993
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f5dd71b3c09
Code: Bad RIP value.
RSP: 002b:00007fffdb056398 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f5dd71b3c09
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 00007f5dd72302b0 R08: ffffffffffffffb8 R09: 0000000000000006
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5dd72302b0
R13: 0000000000000000 R14: 00007f5dd7231020 R15: 00007f5dd7182150
Modules linked in:
---[ end trace 6b7b1124d62c41a1 ]---
RIP: 0010:may_delete+0x750/0x760 fs/namei.c:2894
Code: 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c e8 fd ff ff 4c 89 e7 e8 31 0d f6 ff e9 db fd ff ff e8 07 23 c6 ff 0f 0b e8 00 23 c6 ff <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41 56 53 48 89 fb
RSP: 0018:ffff8881eede7a68 EFLAGS: 00010293
RAX: ffffffff819e2800 RBX: ffff8881dceadde8 RCX: ffff8881f37dbf00
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffff8881dcead9c0 R08: ffffffff819e2128 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff8881dceaddd0
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff8881dce91ff0
FS:  0000555592b0f380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5dd71b3bdf CR3: 0000000005e0e000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

final repro crashed as (corrupted=false):
EXT4-fs (loop0): mounted filesystem without journal. Opts: noauto_da_alloc,jqfmt=vfsold,noquota,norecovery,bsddf,,errors=continue
ext4 filesystem being mounted at /file0 supports timestamps until (%ptR?) (0x7fffffff)
------------[ cut here ]------------
kernel BUG at fs/namei.c:2894!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 358 Comm: syz-executor197 Not tainted 5.4.290-syzkaller-00002-g41adfeb3d639 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:may_delete+0x750/0x760 fs/namei.c:2894
Code: 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c e8 fd ff ff 4c 89 e7 e8 31 0d f6 ff e9 db fd ff ff e8 07 23 c6 ff 0f 0b e8 00 23 c6 ff <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41 56 53 48 89 fb
RSP: 0018:ffff8881eede7a68 EFLAGS: 00010293
RAX: ffffffff819e2800 RBX: ffff8881dceadde8 RCX: ffff8881f37dbf00
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffff8881dcead9c0 R08: ffffffff819e2128 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff8881dceaddd0
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff8881dce91ff0
FS:  0000555592b0f380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5dd722e130 CR3: 0000000005e0e000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 vfs_rmdir+0x29/0x3c0 fs/namei.c:4008
 incfs_kill_sb+0x105/0x200 fs/incfs/vfs.c:1944
 deactivate_locked_super+0xa8/0x110 fs/super.c:335
 deactivate_super+0x1e2/0x2a0 fs/super.c:366
 cleanup_mnt+0x44e/0x500 fs/namespace.c:1102
 task_work_run+0x140/0x170 kernel/task_work.c:113
 exit_task_work include/linux/task_work.h:22 [inline]
 do_exit+0xcaf/0x2bc0 kernel/exit.c:861
 do_group_exit+0x138/0x300 kernel/exit.c:984
 __do_sys_exit_group kernel/exit.c:995 [inline]
 __se_sys_exit_group kernel/exit.c:993 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:993
 do_syscall_64+0xca/0x1c0 arch/x86/entry/common.c:290
 entry_SYSCALL_64_after_hwframe+0x5c/0xc1
RIP: 0033:0x7f5dd71b3c09
Code: Bad RIP value.
RSP: 002b:00007fffdb056398 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f5dd71b3c09
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 00007f5dd72302b0 R08: ffffffffffffffb8 R09: 0000000000000006
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f5dd72302b0
R13: 0000000000000000 R14: 00007f5dd7231020 R15: 00007f5dd7182150
Modules linked in:
---[ end trace 6b7b1124d62c41a1 ]---
RIP: 0010:may_delete+0x750/0x760 fs/namei.c:2894
Code: 44 89 e1 80 e1 07 80 c1 03 38 c1 0f 8c e8 fd ff ff 4c 89 e7 e8 31 0d f6 ff e9 db fd ff ff e8 07 23 c6 ff 0f 0b e8 00 23 c6 ff <0f> 0b 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41 56 53 48 89 fb
RSP: 0018:ffff8881eede7a68 EFLAGS: 00010293
RAX: ffffffff819e2800 RBX: ffff8881dceadde8 RCX: ffff8881f37dbf00
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffff8881dcead9c0 R08: ffffffff819e2128 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff8881dceaddd0
R13: dffffc0000000000 R14: 0000000000000001 R15: ffff8881dce91ff0
FS:  0000555592b0f380(0000) GS:ffff8881f6e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5dd71b3bdf CR3: 0000000005e0e000 CR4: 00000000003406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400