------------[ cut here ]------------
WARNING: fs/namespace.c:1375 at cleanup_mnt+0x33f/0x430, CPU#0: syz-executor.7/4068
Modules linked in:
CPU: 0 UID: 0 PID: 4068 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:cleanup_mnt+0x33f/0x430
Code: c7 20 49 d1 85 e8 41 b3 fa 02 49 8d 7d 40 5b 48 c7 c6 d0 fa be 81 5d 41 5c 41 5d 41 5e 41 5f e9 97 9a 9c ff e8 f2 3c b4 ff 90 <0f> 0b 90 e9 e6 fc ff ff e8 e4 3c b4 ff 4c 89 ef e8 6c d7 06 00 e9
RSP: 0018:ffff88804398fd10 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81bfb6a5
RDX: ffff888040d09b80 RSI: ffffffff81bfb9be RDI: 0000000000000005
RBP: ffff88800d7931c0 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888040d0a458
R13: ffff88800d792fc0 R14: 0000000000000001 R15: ffff88800d793000
FS: 0000000000000000(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f56c1495fc0 CR3: 00000000459e4000 CR4: 0000000000350ef0
Call Trace:
task_work_run+0x172/0x280
do_exit+0x846/0x2970
do_group_exit+0xd3/0x2a0
__x64_sys_exit_group+0x3e/0x50
x64_sys_call+0x18c5/0x18d0
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f56c3f20b19
Code: Unable to access opcode bytes at 0x7f56c3f20aef.
RSP: 002b:00007f56c1495bc8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007f56c4033f60 RCX: 00007f56c3f20b19
RDX: 00007f56c3f20b19 RSI: 0000000000000000 RDI: 000000000000000b
RBP: 000000000000000b R08: 0000000000000000 R09: 00007f56c4033f60
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffde2bed55f R14: 00007f56c1496300 R15: 0000000000022000
irq event stamp: 659
hardirqs last enabled at (819): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (828): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (816): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (667): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
kmemleak: Automatic memory scanning thread ended
BUG: unable to handle page fault for address: ffffed1028b3599e
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 7ffd4067 P4D 7ffd4067 PUD 7ffd3067 PMD 0
Oops: Oops: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 4230 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:perf_tp_event+0x175/0xe70
Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01
RSP: 0018:ffff88804696f800 EFLAGS: 00010212
RAX: 1ffff11028b3599e RBX: ffff8881459acb00 RCX: ffffc9000be4c000
RDX: 0000000000040000 RSI: ffffffff8189a4e7 RDI: ffff8881459accf0
RBP: ffff88804696fa70 R08: ffff88806ce31340 R09: ffffe8ffffc16c80
R10: 0000000000000000 R11: 0000000000000024 R12: dffffc0000000000
R13: 0000000000000024 R14: ffff88806ce31340 R15: dffffc0000000000
FS: 00007f56c1496700(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed1028b3599e CR3: 000000000cb78000 CR4: 0000000000350ef0
Call Trace:
perf_trace_run_bpf_submit+0xef/0x180
perf_trace_lock_acquire+0x3c2/0x700
lock_acquire+0xc5/0x2f0
_raw_spin_lock+0x2b/0x40
futex_wake+0x228/0x540
do_futex+0x26d/0x370
__x64_sys_futex+0x1c9/0x4d0
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f56c3f20b19
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:00007f56c1496218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f56c4033f68 RCX: 00007f56c3f20b19
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f56c4033f6c
RBP: 00007f56c4033f60 R08: 000000000000000e R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 00007f56c4033f6c
R13: 00007ffde2bed55f R14: 00007f56c1496300 R15: 0000000000022000
Modules linked in:
CR2: ffffed1028b3599e
---[ end trace 0000000000000000 ]---
RIP: 0010:perf_tp_event+0x175/0xe70
Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01
RSP: 0018:ffff88804696f800 EFLAGS: 00010212
RAX: 1ffff11028b3599e RBX: ffff8881459acb00 RCX: ffffc9000be4c000
RDX: 0000000000040000 RSI: ffffffff8189a4e7 RDI: ffff8881459accf0
RBP: ffff88804696fa70 R08: ffff88806ce31340 R09: ffffe8ffffc16c80
R10: 0000000000000000 R11: 0000000000000024 R12: dffffc0000000000
R13: 0000000000000024 R14: ffff88806ce31340 R15: dffffc0000000000
FS: 00007f56c1496700(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed1028b3599e CR3: 000000000cb78000 CR4: 0000000000350ef0
note: syz-executor.7[4230] exited with irqs disabled
BUG: unable to handle page fault for address: ffffed1028b3599e
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 7ffd4067 P4D 7ffd4067 PUD 7ffd3067 PMD 0
Oops: Oops: 0000 [#2] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 4230 Comm: syz-executor.7 Tainted: G D W 6.17.0-rc4-next-20250901 #1 PREEMPT(voluntary)
Tainted: [D]=DIE, [W]=WARN
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RIP: 0010:perf_tp_event+0x175/0xe70
Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01
RSP: 0018:ffff88806ce08940 EFLAGS: 00010012
RAX: 1ffff11028b3599e RBX: ffff8881459acb00 RCX: 0000000000000002
RDX: ffff8880155c0000 RSI: ffffffff8189a4e7 RDI: ffff8881459accf0
RBP: ffff88806ce08bb0 R08: ffff88806ce31490 R09: ffffe8ffffc16c80
R10: 0000000000000000 R11: 000000000000002c R12: dffffc0000000000
R13: 000000000000002c R14: ffff88806ce31490 R15: dffffc0000000000
FS: 00007f56c1496700(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed1028b3599e CR3: 000000000cb78000 CR4: 0000000000350ef0
Call Trace:
perf_trace_run_bpf_submit+0xef/0x180
perf_trace_lock_acquire+0x3c2/0x700
lock_acquire+0xc5/0x2f0
_raw_spin_lock_irqsave+0x3a/0x60
hrtimer_interrupt+0xd6/0x830
__sysvec_apic_timer_interrupt+0xbb/0x330
sysvec_apic_timer_interrupt+0x34/0x80
asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:handle_softirqs+0x174/0x770
Code: c8 83 83 3c 0a 00 00 01 c7 44 24 20 0a 00 00 00 48 89 44 24 18 65 66 c7 05 0f d4 48 06 00 00 e8 72 8f 40 00 fb bb ff ff ff ff <48> c7 c5 c0 c0 a0 85 41 0f bc de 83 c3 01 0f 85 9b 00 00 00 e9 8d
RSP: 0018:ffff88806ce08f78 EFLAGS: 00000246
RAX: 0000000000000001 RBX: 00000000ffffffff RCX: ffffffff817c3ab6
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff813bac2e
RBP: ffff88804696fe78 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff8643b457 R11: ffff88806ce08ff8 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000200 R15: 0000000000000000
__irq_exit_rcu+0xc4/0x100
irq_exit_rcu+0x9/0x20
sysvec_call_function_single+0xa6/0xc0
asm_sysvec_call_function_single+0x1a/0x20
RIP: 0010:make_task_dead+0xa2/0x3b0
Code: 38 00 85 db 0f 84 21 01 00 00 e8 09 a6 38 00 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 57 a1 38 00 48 85 db 0f 84 17 01 00 00 e9 a5 38 00 31 ff 65 8b 1d 60 2f 49 06 81 e3 ff ff ff 7f 89 de
RSP: 0018:ffff88804696ff28 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffff8880155c0000 RCX: ffffffff817c3ab6
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff813b5234
RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff8643b457 R11: 0000000000000001 R12: ffff8880155c0000
R13: 0000000000000009 R14: ffff88804696f7e0 R15: 0000000000000000
rewind_stack_and_make_dead+0x16/0x20
RIP: 0033:0x7f56c3f20b19
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:00007f56c1496218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f56c4033f68 RCX: 00007f56c3f20b19
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f56c4033f6c
RBP: 00007f56c4033f60 R08: 000000000000000e R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 00007f56c4033f6c
R13: 00007ffde2bed55f R14: 00007f56c1496300 R15: 0000000000022000
Modules linked in:
CR2: ffffed1028b3599e
---[ end trace 0000000000000000 ]---
RIP: 0010:perf_tp_event+0x175/0xe70
Code: ff df 48 89 85 a8 fd ff ff 48 c1 e8 03 4c 01 e0 48 89 85 c8 fd ff ff e8 c9 51 ea ff 48 8d bb f0 01 00 00 48 89 f8 48 c1 e8 03 <42> 0f b6 04 20 84 c0 74 08 3c 03 0f 8e c5 0b 00 00 44 8b ab f0 01
RSP: 0018:ffff88804696f800 EFLAGS: 00010212
RAX: 1ffff11028b3599e RBX: ffff8881459acb00 RCX: ffffc9000be4c000
RDX: 0000000000040000 RSI: ffffffff8189a4e7 RDI: ffff8881459accf0
RBP: ffff88804696fa70 R08: ffff88806ce31340 R09: ffffe8ffffc16c80
R10: 0000000000000000 R11: 0000000000000024 R12: dffffc0000000000
R13: 0000000000000024 R14: ffff88806ce31340 R15: dffffc0000000000
FS: 00007f56c1496700(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffed1028b3599e CR3: 000000000cb78000 CR4: 0000000000350ef0
----------------
Code disassembly (best guess), 1 bytes skipped:
0: df 48 89 fisttps -0x77(%rax)
3: 85 a8 fd ff ff 48 test %ebp,0x48fffffd(%rax)
9: c1 e8 03 shr $0x3,%eax
c: 4c 01 e0 add %r12,%rax
f: 48 89 85 c8 fd ff ff mov %rax,-0x238(%rbp)
16: e8 c9 51 ea ff callq 0xffea51e4
1b: 48 8d bb f0 01 00 00 lea 0x1f0(%rbx),%rdi
22: 48 89 f8 mov %rdi,%rax
25: 48 c1 e8 03 shr $0x3,%rax
* 29: 42 0f b6 04 20 movzbl (%rax,%r12,1),%eax <-- trapping instruction
2e: 84 c0 test %al,%al
30: 74 08 je 0x3a
32: 3c 03 cmp $0x3,%al
34: 0f 8e c5 0b 00 00 jle 0xbff
3a: 44 rex.R
3b: 8b .byte 0x8b
3c: ab stos %eax,%es:(%rdi)
3d: f0 lock
3e: 01 .byte 0x1