------------[ cut here ]------------
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000032: 0000 [#1] SMP KASAN NOPTI
WARNING: fs/namespace.c:1434 at mntput_no_expire+0x78e/0xbe0, CPU#0: kworker/0:1/10
KASAN: null-ptr-deref in range [0x0000000000000190-0x0000000000000197]
CPU: 1 UID: 0 PID: 4023 Comm: syz-executor.1 Tainted: G W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
Modules linked in:
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:ffff8880171df780 EFLAGS: 00010012
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc90005a12000
RDX: 0000000000040000 RSI: ffffffff818995b7 RDI: 0000000000000191
RBP: ffff8880171df9f0 R08: ffff88806cf31340 R09: ffffe8ffffd16680
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: 0000000000000014 R14: ffff88806cf31340 R15: dffffc0000000000
FS: 00007fdbd0fc5700(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdbd3b63018 CR3: 000000000defd000 CR4: 0000000000350ef0
Call Trace:
perf_trace_run_bpf_submit+0xef/0x180
perf_trace_preemptirq_template+0x259/0x430
trace_irq_enable.constprop.0+0xa6/0x100
CPU: 0 UID: 0 PID: 10 Comm: kworker/0:1 Tainted: G W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
trace_hardirqs_on+0x26/0x40
_raw_spin_unlock_irqrestore+0x2c/0x50
Tainted: [W]=WARN
try_to_wake_up+0x8ae/0x11d0
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: events close_work
RIP: 0010:mntput_no_expire+0x78e/0xbe0
Code: 05 16 42 81 04 01 e8 31 f8 91 ff e9 41 fc ff ff e8 b7 50 b4 ff 31 ff 44 89 ee e8 dd 4b b4 ff 45 85 ed 79 09 e8 a3 50 b4 ff 90 <0f> 0b 90 e8 9a 50 b4 ff e8 75 f6 fb 02 31 ff 89 c5 89 c6 e8 ba 4b
wake_up_q+0xa1/0x130
RSP: 0018:ffff8880095efad0 EFLAGS: 00010293
futex_wake+0x47e/0x540
RAX: 0000000000000000 RBX: 1ffff110012bdf5f RCX: ffffffff81bf96d3
RDX: ffff8880095d9b80 RSI: ffffffff81bf96dd RDI: 0000000000000005
RBP: ffff88800d8fae00 R08: 0000000000000001 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000001 R12: ffff8880095efb38
R13: 00000000ffffffff R14: 0000000000008000 R15: ffff88801c9a2878
do_futex+0x26d/0x370
FS: 0000000000000000(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d225000 CR3: 000000000d6e8000 CR4: 0000000000350ef0
Call Trace:
__x64_sys_futex+0x1c9/0x4d0
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
mntput+0x6b/0x90
RIP: 0033:0x7fdbd3a4fb19
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
__fput+0x53e/0xb50
RSP: 002b:00007fdbd0fc5218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007fdbd3b62f68 RCX: 00007fdbd3a4fb19
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fdbd3b62f6c
RBP: 00007fdbd3b62f60 R08: 000000000000000e R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 00007fdbd3b62f6c
R13: 00007ffeb454ac8f R14: 00007fdbd0fc5300 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:ffff8880171df780 EFLAGS: 00010012
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc90005a12000
RDX: 0000000000040000 RSI: ffffffff818995b7 RDI: 0000000000000191
RBP: ffff8880171df9f0 R08: ffff88806cf31340 R09: ffffe8ffffd16680
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: 0000000000000014 R14: ffff88806cf31340 R15: dffffc0000000000
FS: 00007fdbd0fc5700(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdbd3b63018 CR3: 000000000defd000 CR4: 0000000000350ef0
note: syz-executor.1[4023] exited with irqs disabled
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000032: 0000 [#2] SMP KASAN NOPTI
__fput_sync+0xc5/0x100
KASAN: null-ptr-deref in range [0x0000000000000190-0x0000000000000197]
CPU: 1 UID: 0 PID: 4023 Comm: syz-executor.1 Tainted: G D W 6.17.0-rc3-next-20250829 #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:ffff88806cf08b80 EFLAGS: 00010012
close_work+0x9f/0xd0
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: 0000000000000002
RDX: ffff888016c30000 RSI: ffffffff818995b7 RDI: 0000000000000191
process_one_work+0x8e1/0x19c0
RBP: ffff88806cf08df0 R08: ffff88806cf313e8 R09: ffffe8ffffd16680
R10: 0000000000000000 R11: ffff88801ba11c98 R12: dffffc0000000000
R13: 0000000000000014 R14: ffff88806cf313e8 R15: dffffc0000000000
FS: 00007fdbd0fc5700(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fdbd3b63018 CR3: 000000000defd000 CR4: 0000000000350ef0
Call Trace:
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x34b/0x430
ret_from_fork_asm+0x1a/0x30
irq event stamp: 329686
hardirqs last enabled at (329685): [] vprintk_store+0x5f7/0xa20
hardirqs last disabled at (329686): [] __down_trylock_console_sem+0x77/0xd0
perf_trace_run_bpf_submit+0xef/0x180
softirqs last enabled at (327792): [] handle_softirqs+0x50c/0x770
perf_trace_preemptirq_template+0x259/0x430
softirqs last disabled at (327787): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
Process accounting resumed
trace_irq_enable.constprop.0+0xa6/0x100
trace_hardirqs_on+0x26/0x40
handle_softirqs+0x16e/0x770
__irq_exit_rcu+0xc4/0x100
irq_exit_rcu+0x9/0x20
sysvec_apic_timer_interrupt+0x70/0x80
asm_sysvec_apic_timer_interrupt+0x1a/0x20
RIP: 0010:make_task_dead+0xa2/0x3b0
Code: 38 00 85 db 0f 84 21 01 00 00 e8 d9 96 38 00 9c 5b 81 e3 00 02 00 00 31 ff 48 89 de e8 27 92 38 00 48 85 db 0f 84 17 01 00 00 b9 96 38 00 31 ff 65 8b 1d 60 df 48 06 81 e3 ff ff ff 7f 89 de
RSP: 0018:ffff8880171dff28 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffff888016c30000 RCX: ffffffff817c2b86
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffffffff813b5234
RBP: 000000000000000b R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff8643ac57 R11: 0000000000000001 R12: ffff888016c30000
R13: 0000000000000000 R14: dffffc0000000032 R15: 0000000000000000
rewind_stack_and_make_dead+0x16/0x20
RIP: 0033:0x7fdbd3a4fb19
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:00007fdbd0fc5218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007fdbd3b62f68 RCX: 00007fdbd3a4fb19
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fdbd3b62f6c
RBP: 00007fdbd3b62f60 R08: 000000000000000e R09: 0000000000000000
R10: 0000000000000003 R11: 0000000000000246 R12: 00007fdbd3b62f6c
R13: 00007ffeb454ac8f R14: 00007fdbd0fc5300 R15: 0000000000022000
Modules linked in:
---[ end trace 0000000000000000 ]---
Oops: general protection fault, probably for non-canonical address 0xdffffc0020000032: 0000 [#3] SMP KASAN NOPTI
RIP: 0010:perf_tp_event+0x175/0xe70
KASAN: probably user-memory-access in range [0x0000000100000190-0x0000000100000197]
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
CPU: 0 UID: 0 PID: 4024 Comm: syz-executor.5 Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
RSP: 0018:ffff8880171df780 EFLAGS: 00010012
Tainted: [D]=DIE, [W]=WARN
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc90005a12000
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RDX: 0000000000040000 RSI: ffffffff818995b7 RDI: 0000000000000191
RIP: 0010:perf_tp_event+0x175/0xe70
RBP: ffff8880171df9f0 R08: ffff88806cf31340 R09: ffffe8ffffd16680
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
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
RSP: 0018:ffff888048acf780 EFLAGS: 00010012
R13: 0000000000000014 R14: ffff88806cf31340 R15: dffffc0000000000
RAX: 0000000020000032 RBX: 00000000ffffffa0 RCX: ffffc90008628000
FS: 00007fdbd0fc5700(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
RDX: 0000000000040000 RSI: ffffffff818995b7 RDI: 0000000100000190
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
RBP: ffff888048acf9f0 R08: ffff88806ce31340 R09: ffffe8ffffc16680
CR2: 00007fdbd3b63018 CR3: 000000000defd000 CR4: 0000000000350ef0
R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
----------------
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