path_mount+0x1637/0x1dd0
__x64_sys_mount+0x27b/0x300
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
------------[ cut here ]------------
WARNING: fs/namespace.c:1434 at mntput_no_expire+0x78e/0xbe0, CPU#0: syz-executor.5/285
Modules linked in:
CPU: 0 UID: 0 PID: 285 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: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:ffff8880170b7c00 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff11002e16f85 RCX: ffffffff81bfaf93
RDX: ffff8880168d5280 RSI: ffffffff81bfaf9d RDI: 0000000000000005
RBP: ffff888016de5c00 R08: 0000000000000001 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000001 R12: ffff8880170b7c68
R13: 00000000ffffffff R14: dead000000000100 R15: ffff888016de5c00
FS: 0000555562e3b400(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000c00069f000 CR3: 000000003f583000 CR4: 0000000000350ef0
Call Trace:
namespace_unlock+0x7f1/0x810
path_umount+0x6a4/0x1100
__x64_sys_umount+0x15c/0x190
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe1058f8f87
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:00007ffc70108848 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 0000000000000011 RCX: 00007fe1058f8f87
RDX: 00007ffc70108919 RSI: 000000000000000a RDI: 00007ffc70108910
RBP: 00007ffc70108910 R08: 00000000ffffffff R09: 00007ffc701086e0
R10: 0000555562e3cc7b R11: 0000000000000246 R12: 00007fe105951105
R13: 00007ffc701099d0 R14: 0000555562e3cc20 R15: 00007ffc70109a10
irq event stamp: 176725
hardirqs last enabled at (176733): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (176742): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (176494): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (176761): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
faux_driver regulatory: Direct firmware load for regulatory.db failed with error -2
------------[ cut here ]------------
WARNING: fs/namespace.c:1434 at mntput_no_expire+0x78e/0xbe0, CPU#0: syz-executor.5/285
Modules linked in:
CPU: 0 UID: 0 PID: 285 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: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:ffff8880170b7ce0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff11002e16fa1 RCX: ffffffff81bfaf93
RDX: ffff8880168d5280 RSI: ffffffff81bfaf9d RDI: 0000000000000005
RBP: ffff888016de5c00 R08: 0000000000000001 R09: 0000000000000000
R10: 00000000fffffffe R11: 0000000000000001 R12: ffff8880170b7d48
R13: 00000000fffffffe R14: ffff888016de5c00 R15: ffff888016de5ce8
FS: 0000555562e3b400(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fb89e47c000 CR3: 000000003f583000 CR4: 0000000000350ef0
Call Trace:
path_umount+0x6e0/0x1100
__x64_sys_umount+0x15c/0x190
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe1058f8f87
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:00007ffc70108848 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 0000000000000011 RCX: 00007fe1058f8f87
RDX: 00007ffc70108919 RSI: 000000000000000a RDI: 00007ffc70108910
RBP: 00007ffc70108910 R08: 00000000ffffffff R09: 00007ffc701086e0
R10: 0000555562e3cc7b R11: 0000000000000246 R12: 00007fe105951105
R13: 00007ffc701099d0 R14: 0000555562e3cc20 R15: 00007ffc70109a10
irq event stamp: 177199
hardirqs last enabled at (177207): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (177486): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (177738): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (177495): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
Oops: general protection fault, probably for non-canonical address 0xdffffc0020000032: 0000 [#1] SMP KASAN NOPTI
KASAN: probably user-memory-access in range [0x0000000100000190-0x0000000100000197]
CPU: 0 UID: 0 PID: 3961 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
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:ffff8880422bf600 EFLAGS: 00010212
RAX: 0000000020000032 RBX: 00000000ffffffa0 RCX: ffffc900050b2000
RDX: 0000000000040000 RSI: ffffffff8189a4e7 RDI: 0000000100000190
RBP: ffff8880422bf870 R08: ffff88806ce31340 R09: ffffe8ffffc07ce8
R10: 0000000000000000 R11: 0000000000000001 R12: dffffc0000000000
R13: 000000000000002c R14: ffff88806ce31340 R15: dffffc0000000000
FS: 00007f242a1df700(0000) GS:ffff8880e55d8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555eaf6c18 CR3: 000000000e510000 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_wait_setup+0xae/0x550
__futex_wait+0x151/0x300
futex_wait+0xde/0x380
do_futex+0x2ee/0x370
__x64_sys_futex+0x1c9/0x4d0
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f242cc69b19
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:00007f242a1df218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007f242cd7cf68 RCX: 00007f242cc69b19
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f242cd7cf68
RBP: 00007f242cd7cf60 R08: 00007f242a1df700 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f242cd7cf6c
R13: 00007ffe66e7933f R14: 00007f242a1df300 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: 1 UID: 0 PID: 3959 Comm: syz-executor.2 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:ffff88806cf08a80 EFLAGS: 00010012
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: 0000000000000002
RDX: ffff888009f20000 RSI: ffffffff8189a4e7 RDI: 0000000000000191
RBP: ffff88806cf08cf0 R08: ffff88806cf31490 R09: ffffe8ffffd07ce8
R10: 0000000000000000 R11: 746e756f63716573 R12: dffffc0000000000
R13: 000000000000002c R14: ffff88806cf31490 R15: dffffc0000000000
FS: 0000555581013400(0000) GS:ffff8880e56d8000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555581014c18 CR3: 000000000e41e000 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:nbcon_get_cpu_emergency_nesting+0x2/0x50
Code: ff ff e8 51 df f3 fc e9 64 fc ff ff 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 54 <49> c7 c4 88 d6 f5 86 53 e8 31 c6 b7 fc e8 dc 17 98 fc 31 ff 89 c3
RSP: 0018:ffff8880166cf640 EFLAGS: 00000283
RAX: 0000000000000000 RBX: 0000000000000001 RCX: dffffc0000000032
RDX: ffff888009f20000 RSI: ffffffff8155233d RDI: ffff8880166cf6c4
RBP: ffff8880166cf758 R08: 0000000000000007 R09: 0000000000000078
R10: 000000000000005c R11: 202c746c75616620 R12: ffff8880166cf6c4
R13: 0000000000000000 R14: dffffc0000000032 R15: 0000000000000000
nbcon_cpu_emergency_enter+0x19/0x60
oops_enter+0xf/0x70
oops_begin+0xc/0x80
die_addr+0x1e/0xa0
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:ffff8880166cf800 EFLAGS: 00010212
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: 0000000000000002
RDX: ffff888009f20000 RSI: ffffffff8189a4e7 RDI: 0000000000000191
RBP: ffff8880166cfa70 R08: ffff88806cf31340 R09: ffffe8ffffd07ce8
R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
R13: 000000000000002c R14: ffff88806cf31340 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: 0033:0x7f7e34c49b19
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:00007fffb03c3be8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7e34c49b19
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007f7e34d5cf68
RBP: 00007f7e34d5cf60 R08: 00007f7e321bf700 R09: 0000000000000000
R10: 00007f7e321bf700 R11: 0000000000000246 R12: 00007f7e34d61a68
R13: 00007fffb03c3cf0 R14: 00007f7e34d5cf60 R15: 000000000001936c
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: 3961 Comm: syz-executor.4 Tainted: G D W 6.17.0-rc4-next-20250901 #1 PREEMPT(voluntary)
RSP: 0018:ffff8880422bf600 EFLAGS: 00010212
Tainted: [D]=DIE, [W]=WARN
RAX: 0000000020000032 RBX: 00000000ffffffa0 RCX: ffffc900050b2000
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RDX: 0000000000040000 RSI: ffffffff8189a4e7 RDI: 0000000100000190
RIP: 0010:perf_tp_event+0x175/0xe70
RBP: ffff8880422bf870 R08: ffff88806ce31340 R09: ffffe8ffffc07ce8
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:ffff88806ce08a80 EFLAGS: 00010012
R13: 000000000000002c R14: ffff88806ce31340 R15: dffffc0000000000
FS: 0000555581013400(0000) GS:ffff8880e56d8000(0000) knlGS:0000000000000000
RAX: 0000000020000032 RBX: 00000000ffffffa0 RCX: 0000000000000002
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
RDX: ffff888042411b80 RSI: ffffffff8189a4e7 RDI: 0000000100000190
CR2: 0000555581014c18 CR3: 000000000e41e000 CR4: 0000000000350ef0
RBP: ffff88806ce08cf0 R08: ffff88806ce31490 R09: ffffe8ffffc07ce8
----------------
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