------------[ cut here ]------------
WARNING: fs/namespace.c:1375 at cleanup_mnt+0x33f/0x430, CPU#1: syz-executor.2/280
Modules linked in:
CPU: 1 UID: 0 PID: 280 Comm: syz-executor.2 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:ffff888016427e20 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff81bfb6a5
RDX: ffff888019a9d280 RSI: ffffffff81bfb9be RDI: 0000000000000005
RBP: ffff888019a9e6f0 R08: 0000000000000001 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888019a9db58
R13: ffff888020102e00 R14: 0000000000000001 R15: ffff888020102e40
FS: 000055556317a400(0000) GS:ffff8880e56d8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555563183c58 CR3: 000000003c079000 CR4: 0000000000350ef0
Call Trace:
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: 0033:0x7fbd0103df87
Code: ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 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 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffc657ab108 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 000000000000000a RCX: 00007fbd0103df87
RDX: 00007ffc657ab1d9 RSI: 000000000000000a RDI: 00007ffc657ab1d0
RBP: 00007ffc657ab1d0 R08: 00000000ffffffff R09: 00007ffc657aafa0
R10: 000055556317bc7b R11: 0000000000000246 R12: 00007fbd01096105
R13: 00007ffc657ac290 R14: 000055556317bc20 R15: 00007ffc657ac2d0
irq event stamp: 154221
hardirqs last enabled at (154231): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (154238): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (153926): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (153911): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
EXT4-fs (loop3): unmounting filesystem 00000000-0000-0000-0000-000000000000.
kmemleak: Found object by alias at 0x607f1a63ed54
CPU: 1 UID: 0 PID: 3975 Comm: syz-executor.4 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
Call Trace:
dump_stack_lvl+0xca/0x120
__lookup_object+0x94/0xb0
delete_object_full+0x27/0x70
free_percpu+0x30/0x1160
futex_hash_free+0x38/0xc0
mmput+0x2d3/0x390
do_exit+0x79d/0x2970
do_group_exit+0xd3/0x2a0
get_signal+0x2315/0x2340
arch_do_signal_or_restart+0x80/0x790
exit_to_user_mode_loop+0x8b/0x110
do_syscall_64+0x2f7/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb1509e0b19
Code: Unable to access opcode bytes at 0x7fb1509e0aef.
RSP: 002b:00007fb14df56218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fb150af3f68 RCX: 00007fb1509e0b19
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fb150af3f68
RBP: 00007fb150af3f60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb150af3f6c
R13: 00007fffaf87237f R14: 00007fb14df56300 R15: 0000000000022000
kmemleak: Object (percpu) 0x607f1a63ed50 (size 8):
kmemleak: comm "syz-executor.6", pid 3981, jiffies 4294783972
kmemleak: min_count = 1
kmemleak: count = 0
kmemleak: flags = 0x21
kmemleak: checksum = 0
kmemleak: backtrace:
pcpu_alloc_noprof+0x87a/0x1170
perf_trace_event_init+0x366/0xa10
perf_trace_init+0x1a4/0x2f0
perf_tp_event_init+0xa6/0x120
perf_try_init_event+0x140/0x9f0
perf_event_alloc.part.0+0x118e/0x45f0
__do_sys_perf_event_open+0x719/0x2c20
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
kmemleak: Found object by alias at 0x607f1a63ed54
CPU: 1 UID: 0 PID: 4000 Comm: syz-executor.4 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
Call Trace:
dump_stack_lvl+0xca/0x120
__lookup_object+0x94/0xb0
delete_object_full+0x27/0x70
free_percpu+0x30/0x1160
futex_hash_free+0x38/0xc0
mmput+0x2d3/0x390
do_exit+0x79d/0x2970
do_group_exit+0xd3/0x2a0
get_signal+0x2315/0x2340
arch_do_signal_or_restart+0x80/0x790
exit_to_user_mode_loop+0x8b/0x110
do_syscall_64+0x2f7/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb1509e0b19
Code: Unable to access opcode bytes at 0x7fb1509e0aef.
RSP: 002b:00007fb14df56218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007fb150af3f68 RCX: 00007fb1509e0b19
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fb150af3f6c
RBP: 00007fb150af3f60 R08: 000000000000000e R09: 0000000000000000
R10: 00000000064a0d85 R11: 0000000000000246 R12: 00007fb150af3f6c
R13: 00007fffaf87237f R14: 00007fb14df56300 R15: 0000000000022000
kmemleak: Object (percpu) 0x607f1a63ed50 (size 8):
kmemleak: comm "syz-executor.2", pid 4001, jiffies 4294784156
kmemleak: min_count = 1
kmemleak: count = 0
kmemleak: flags = 0x21
kmemleak: checksum = 0
kmemleak: backtrace:
pcpu_alloc_noprof+0x87a/0x1170
perf_trace_event_init+0x366/0xa10
perf_trace_init+0x1a4/0x2f0
perf_tp_event_init+0xa6/0x120
perf_try_init_event+0x140/0x9f0
perf_event_alloc.part.0+0x118e/0x45f0
__do_sys_perf_event_open+0x719/0x2c20
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
kmemleak: Found object by alias at 0x607f1a63ed54
CPU: 1 UID: 0 PID: 4031 Comm: syz-executor.4 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
Call Trace:
dump_stack_lvl+0xca/0x120
__lookup_object+0x94/0xb0
delete_object_full+0x27/0x70
free_percpu+0x30/0x1160
futex_hash_free+0x38/0xc0
mmput+0x2d3/0x390
do_exit+0x79d/0x2970
do_group_exit+0xd3/0x2a0
get_signal+0x2315/0x2340
arch_do_signal_or_restart+0x80/0x790
exit_to_user_mode_loop+0x8b/0x110
do_syscall_64+0x2f7/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb1509e0b19
Code: Unable to access opcode bytes at 0x7fb1509e0aef.
RSP: 002b:00007fb14df56218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fb150af3f68 RCX: 00007fb1509e0b19
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fb150af3f68
RBP: 00007fb150af3f60 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb150af3f6c
R13: 00007fffaf87237f R14: 00007fb14df56300 R15: 0000000000022000
kmemleak: Object (percpu) 0x607f1a63ed50 (size 8):
kmemleak: comm "syz-executor.1", pid 4027, jiffies 4294784362
kmemleak: min_count = 1
kmemleak: count = 0
kmemleak: flags = 0x21
kmemleak: checksum = 0
kmemleak: backtrace:
pcpu_alloc_noprof+0x87a/0x1170
perf_trace_event_init+0x366/0xa10
perf_trace_init+0x1a4/0x2f0
perf_tp_event_init+0xa6/0x120
perf_try_init_event+0x140/0x9f0
perf_event_alloc.part.0+0x118e/0x45f0
__do_sys_perf_event_open+0x719/0x2c20
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000032: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000190-0x0000000000000197]
CPU: 0 UID: 0 PID: 4049 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_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:ffff888047187800 EFLAGS: 00010212
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc9000be68000
RDX: 0000000000040000 RSI: ffffffff8189a4e7 RDI: 0000000000000191
RBP: ffff888047187a70 R08: ffff88806ce31340 R09: ffffe8ffffc16d50
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: 000000000000002c R14: ffff88806ce31340 R15: dffffc0000000000
FS: 00007f0e45798700(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbd01150018 CR3: 000000000f016000 CR4: 0000000000350ef0
Call Trace:
perf_trace_run_bpf_submit+0xef/0x180
perf_trace_lock+0x337/0x5d0
lock_release+0x1ab/0x290
futex_ref_get+0x119/0x300
futex_hash+0x70/0x390
futex_wake+0x143/0x540
do_futex+0x26d/0x370
__x64_sys_futex+0x1c9/0x4d0
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0e48222b19
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:00007f0e45798218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f0e48335f68 RCX: 00007f0e48222b19
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f0e48335f6c
RBP: 00007f0e48335f60 R08: 0000000000000015 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 00007f0e48335f6c
R13: 00007ffe1289abaf R14: 00007f0e45798300 R15: 0000000000022000
Modules linked in:
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000032: 0000 [#2] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000190-0x0000000000000197]
CPU: 0 UID: 0 PID: 4049 Comm: syz-executor.5 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:ffff88806ce08a80 EFLAGS: 00010012
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: 0000000000000002
RDX: ffff888047128000 RSI: ffffffff8189a4e7 RDI: 0000000000000191
RBP: ffff88806ce08cf0 R08: ffff88806ce31490 R09: ffffe8ffffc16d50
R10: 0000000000000000 R11: 746e756f63716573 R12: dffffc0000000000
R13: 000000000000002c R14: ffff88806ce31490 R15: dffffc0000000000
FS: 00007f0e45798700(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbd01150018 CR3: 000000000f016000 CR4: 0000000000350ef0
Call Trace:
perf_trace_run_bpf_submit+0xef/0x180
perf_trace_lock+0x337/0x5d0
lock_release+0x1ab/0x290
ktime_get_update_offsets_now+0xab/0x3c0
hrtimer_interrupt+0x114/0x830
__sysvec_apic_timer_interrupt+0xbb/0x330
sysvec_apic_timer_interrupt+0x6b/0x80
asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:oops_exit+0x0/0x50
Code: 00 3a 00 be ff ff ff ff 48 c7 c7 50 b4 43 86 e8 c6 0f f9 ff 5b e9 50 00 3a 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <66> 0f 1f 00 53 e8 36 00 3a 00 8b 1d c0 3d 4f 06 31 ff 89 de e8 57
RSP: 0018:ffff888047187690 EFLAGS: 00000202
RAX: 000000000002afc7 RBX: 0000000000000212 RCX: ffffc9000be68000
RDX: 0000000000040000 RSI: ffffffff812a3dca RDI: 0000000000000007
RBP: 000000000000000b R08: 0000000000000001 R09: fffffbfff0f12690
R10: 0000000000000000 R11: 0000000000000001 R12: ffff888047187758
R13: 0000000000000000 R14: dffffc0000000032 R15: 0000000000000000
oops_end+0x65/0xe0
exc_general_protection+0x1a2/0x330
asm_exc_general_protection+0x26/0x30
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:ffff888047187800 EFLAGS: 00010212
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc9000be68000
RDX: 0000000000040000 RSI: ffffffff8189a4e7 RDI: 0000000000000191
RBP: ffff888047187a70 R08: ffff88806ce31340 R09: ffffe8ffffc16d50
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: 000000000000002c R14: ffff88806ce31340 R15: dffffc0000000000
perf_trace_run_bpf_submit+0xef/0x180
perf_trace_lock+0x337/0x5d0
lock_release+0x1ab/0x290
futex_ref_get+0x119/0x300
futex_hash+0x70/0x390
futex_wake+0x143/0x540
do_futex+0x26d/0x370
__x64_sys_futex+0x1c9/0x4d0
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0e48222b19
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:00007f0e45798218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f0e48335f68 RCX: 00007f0e48222b19
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f0e48335f6c
RBP: 00007f0e48335f60 R08: 0000000000000015 R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 00007f0e48335f6c
R13: 00007ffe1289abaf R14: 00007f0e45798300 R15: 0000000000022000
Modules linked in:
---[ 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:ffff888047187800 EFLAGS: 00010212
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc9000be68000
RDX: 0000000000040000 RSI: ffffffff8189a4e7 RDI: 0000000000000191
RBP: ffff888047187a70 R08: ffff88806ce31340 R09: ffffe8ffffc16d50
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: 000000000000002c R14: ffff88806ce31340 R15: dffffc0000000000
FS: 00007f0e45798700(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbd01150018 CR3: 000000000f016000 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