SELinux: security_context_str_to_sid (staff_u) failed with errno=-22
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WARNING: fs/namespace.c:1434 at mntput_no_expire+0x78e/0xbe0, CPU#0: syz-executor.7/4087
Modules linked in:
CPU: 0 UID: 16877 PID: 4087 Comm: syz-executor.7 Tainted: G W 6.17.0-rc4-next-20250901 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:mntput_no_expire+0x78e/0xbe0
Code: 05 d6 30 81 04 01 e8 71 df 91 ff e9 41 fc ff ff e8 27 47 b4 ff 31 ff 44 89 ee e8 4d 42 b4 ff 45 85 ed 79 09 e8 13 47 b4 ff 90 <0f> 0b 90 e8 0a 47 b4 ff e8 b5 2d fc 02 31 ff 89 c5 89 c6 e8 2a 42
RSP: 0018:ffff888015a9fd40 EFLAGS: 00010216
RAX: 0000000000005c19 RBX: 1ffff11002b53fad RCX: ffffc9000b869000
RDX: 0000000000040000 RSI: ffffffff81bfaf9d RDI: 0000000000000005
RBP: ffff888009ba0e00 R08: 0000000000000001 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000001 R12: ffff888015a9fda8
R13: 00000000ffffffff R14: ffff888009ba0e00 R15: ffff888009ba0d90
FS: 00007f930a6d6700(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000044fa1000 CR4: 0000000000350ef0
Call Trace:
cleanup_mnt+0x41e/0x430
task_work_run+0x172/0x280
exit_to_user_mode_loop+0xef/0x110
do_syscall_64+0x2f7/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f930d160b19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f930a6d6188 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: fffffffffffffff2 RBX: 00007f930d273f60 RCX: 00007f930d160b19
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000013aab180
RBP: 00007f930d1baf6d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc1278eabf R14: 00007f930a6d6300 R15: 0000000000022000
irq event stamp: 1385
hardirqs last enabled at (1395): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (1402): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (1084): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (1069): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
Oops: general protection fault, probably for non-canonical address 0xdffffc0020000000: 0000 [#1] SMP KASAN NOPTI
KASAN: probably user-memory-access in range [0x0000000100000000-0x0000000100000007]
CPU: 0 UID: 0 PID: 4076 Comm: syz-executor.5 Tainted: G W 6.17.0-rc4-next-20250901 #1 PREEMPT(voluntary)
Tainted: [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:perf_trace_add+0x21b/0x340
Code: 00 0f 85 3a 01 00 00 4c 89 75 00 4d 85 ed 74 2a e8 da b2 f5 ff 49 8d 7d 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 df 00 00 00 4d 89 75 08 eb 03 45 31 e4 e8 ad b2
RSP: 0018:ffff888045fcf2a0 EFLAGS: 00010017
RAX: dffffc0000000000 RBX: ffff888009649f40 RCX: ffffffff817e42fe
RDX: 0000000020000000 RSI: ffffffff817e43d6 RDI: 0000000100000007
RBP: ffffe8ffffc084f8 R08: ffffffff85ca4140 R09: ffffed1008bf9e9b
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: 00000000ffffffff R14: ffff888009649fa0 R15: ffff888009649fd8
FS: 00007faacfc12700(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fda534af3a4 CR3: 000000000d8ee000 CR4: 0000000000350ef0
Call Trace:
event_sched_in+0x446/0xb60
merge_sched_in+0xb4d/0x1810
visit_groups_merge.constprop.0.isra.0+0x8d1/0x1150
ctx_sched_in+0x579/0x9b0
perf_event_sched_in+0x5d/0x90
__perf_event_task_sched_in+0x2ec/0x5e0
finish_task_switch.isra.0+0x410/0x840
__schedule+0xe86/0x3590
schedule+0xdb/0x390
schedule_hrtimeout_range_clock+0x11f/0x310
poll_schedule_timeout.constprop.0+0xc4/0x1c0
do_sys_poll+0x768/0xd90
__x64_sys_ppoll+0x229/0x2a0
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7faad269cb19
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007faacfc12188 EFLAGS: 00000246 ORIG_RAX: 000000000000010f
RAX: ffffffffffffffda RBX: 00007faad27aff60 RCX: 00007faad269cb19
RDX: 0000000020000640 RSI: 0000000000000002 RDI: 0000000020000600
RBP: 00007faad26f6f6d R08: 0000000000000008 R09: 0000000000000000
R10: 0000000020000680 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc7586bfcf R14: 00007faacfc12300 R15: 0000000000022000
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:perf_trace_add+0x21b/0x340
Code: 00 0f 85 3a 01 00 00 4c 89 75 00 4d 85 ed 74 2a e8 da b2 f5 ff 49 8d 7d 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 df 00 00 00 4d 89 75 08 eb 03 45 31 e4 e8 ad b2
RSP: 0018:ffff888045fcf2a0 EFLAGS: 00010017
RAX: dffffc0000000000 RBX: ffff888009649f40 RCX: ffffffff817e42fe
RDX: 0000000020000000 RSI: ffffffff817e43d6 RDI: 0000000100000007
RBP: ffffe8ffffc084f8 R08: ffffffff85ca4140 R09: ffffed1008bf9e9b
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: 00000000ffffffff R14: ffff888009649fa0 R15: ffff888009649fd8
FS: 00007faacfc12700(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fda534af3a4 CR3: 000000000d8ee000 CR4: 0000000000350ef0
note: syz-executor.5[4076] exited with irqs disabled
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Code disassembly (best guess):
0: 00 0f add %cl,(%rdi)
2: 85 3a test %edi,(%rdx)
4: 01 00 add %eax,(%rax)
6: 00 4c 89 75 add %cl,0x75(%rcx,%rcx,4)
a: 00 4d 85 add %cl,-0x7b(%rbp)
d: ed in (%dx),%eax
e: 74 2a je 0x3a
10: e8 da b2 f5 ff callq 0xfff5b2ef
15: 49 8d 7d 08 lea 0x8(%r13),%rdi
19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
20: fc ff df
23: 48 89 fa mov %rdi,%rdx
26: 48 c1 ea 03 shr $0x3,%rdx
* 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction
2e: 0f 85 df 00 00 00 jne 0x113
34: 4d 89 75 08 mov %r14,0x8(%r13)
38: eb 03 jmp 0x3d
3a: 45 31 e4 xor %r12d,%r12d
3d: e8 .byte 0xe8
3e: ad lods %ds:(%rsi),%eax
3f: b2 .byte 0xb2