------------[ cut here ]------------
WARNING: fs/namespace.c:1434 at mntput_no_expire+0x78e/0xbe0, CPU#1: syz-executor.5/287
Modules linked in:
CPU: 1 UID: 0 PID: 287 Comm: syz-executor.5 Tainted: G W 6.17.0-rc3-next-20250829 #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 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
RSP: 0018:ffff888016d87ce0 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 1ffff11002db0fa1 RCX: ffffffff81bf96d3
RDX: ffff88801aacb700 RSI: ffffffff81bf96dd RDI: 0000000000000005
RBP: ffff888016ac8000 R08: 0000000000000001 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000001 R12: ffff888016d87d48
R13: 00000000ffffffff R14: ffff888016ac8000 R15: ffff888016ac80e8
FS: 0000555562550400(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556f730c18 CR3: 0000000045233000 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: 0033:0x7fba0b8e1f87
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:00007ffdbfae62e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fba0b8e1f87
RDX: 00007ffdbfae63b9 RSI: 000000000000000a RDI: 00007ffdbfae63b0
RBP: 00007ffdbfae63b0 R08: 00000000ffffffff R09: 00007ffdbfae6180
R10: 0000555562551c7b R11: 0000000000000246 R12: 00007fba0b93a105
R13: 00007ffdbfae7470 R14: 0000555562551c20 R15: 00007ffdbfae74b0
irq event stamp: 151549
hardirqs last enabled at (151559): [] __up_console_sem+0x78/0x80
hardirqs last disabled at (151566): [] __up_console_sem+0x5d/0x80
softirqs last enabled at (151266): [] handle_softirqs+0x50c/0x770
softirqs last disabled at (151261): [] __irq_exit_rcu+0xc4/0x100
---[ end trace 0000000000000000 ]---
Unsupported ieee802154 address type: 0
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000032: 0000 [#1] SMP KASAN NOPTI
KASAN: null-ptr-deref in range [0x0000000000000190-0x0000000000000197]
CPU: 1 UID: 0 PID: 3926 Comm: syz-executor.7 Tainted: G W 6.17.0-rc3-next-20250829 #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:ffff888047f1f780 EFLAGS: 00010012
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc90007ac7000
RDX: 0000000000040000 RSI: ffffffff818995b7 RDI: 0000000000000191
RBP: ffff888047f1f9f0 R08: ffff88806cf31340 R09: ffffe8ffffd167d8
R10: 0000000000000000 R11: ffff88801e20c898 R12: dffffc0000000000
R13: 0000000000000014 R14: ffff88806cf31340 R15: dffffc0000000000
FS: 00007fb674e37700(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000840 CR3: 00000000456f3000 CR4: 0000000000350ef0
Call Trace:
perf_trace_run_bpf_submit+0xef/0x180
perf_trace_preemptirq_template+0x259/0x430
trace_irq_enable.constprop.0+0xa6/0x100
trace_hardirqs_on+0x26/0x40
_raw_spin_unlock_irqrestore+0x2c/0x50
try_to_wake_up+0x8ae/0x11d0
wake_up_q+0xa1/0x130
futex_wake+0x47e/0x540
do_futex+0x26d/0x370
__x64_sys_futex+0x1c9/0x4d0
do_syscall_64+0xbf/0x360
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb6778c1b19
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:00007fb674e37218 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 00007fb6779d4f68 RCX: 00007fb6778c1b19
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fb6779d4f6c
RBP: 00007fb6779d4f60 R08: 0000000000000013 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 00007fb6779d4f6c
R13: 00007ffd0773958f R14: 00007fb674e37300 R15: 0000000000022000
Modules linked in:
---[ end trace 0000000000000000 ]---
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000032: 0000 [#2] SMP KASAN NOPTI
RIP: 0010:perf_tp_event+0x175/0xe70
KASAN: null-ptr-deref in range [0x0000000000000190-0x0000000000000197]
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: 65 Comm: kworker/u8:1 Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
RSP: 0018:ffff888047f1f780 EFLAGS: 00010012
Tainted: [D]=DIE, [W]=WARN
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc90007ac7000
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
RDX: 0000000000040000 RSI: ffffffff818995b7 RDI: 0000000000000191
Workqueue: ipv6_addrconf addrconf_dad_work
RBP: ffff888047f1f9f0 R08: ffff88806cf31340 R09: ffffe8ffffd167d8
RIP: 0010:perf_tp_event+0x175/0xe70
R10: 0000000000000000 R11: ffff88801e20c898 R12: dffffc0000000000
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
R13: 0000000000000014 R14: ffff88806cf31340 R15: dffffc0000000000
RSP: 0018:ffff88806ce08380 EFLAGS: 00010012
FS: 00007fb674e37700(0000) GS:ffff8880e56dd000(0000) knlGS:0000000000000000
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: 0000000000000002
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
RDX: ffff88800aadd280 RSI: ffffffff818995b7 RDI: 0000000000000191
CR2: 0000000020000840 CR3: 00000000456f3000 CR4: 0000000000350ef0
RBP: ffff88806ce085f0 R08: ffff88806ce313e8 R09: ffffe8ffffc167d8
note: syz-executor.7[3926] exited with irqs disabled
R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
R13: 0000000000000014 R14: ffff88806ce313e8 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2cc26000 CR3: 00000000203b5000 CR4: 0000000000350ef0
Call Trace:
perf_trace_run_bpf_submit+0xef/0x180
perf_trace_preemptirq_template+0x259/0x430
trace_irq_enable.constprop.0+0xa6/0x100
trace_hardirqs_on+0x26/0x40
__local_bh_enable_ip+0xa1/0x110
ip6_pol_route+0x405/0x11a0
fib6_rule_lookup+0x20d/0x300
ip6_route_input+0x606/0xb30
ip6_rcv_finish_core.constprop.0+0x1a4/0x5e0
ip6_list_rcv_finish.constprop.0+0x15f/0x9a0
ipv6_list_rcv+0x2c7/0x3f0
__netif_receive_skb_list_core+0x4c1/0x8d0
netif_receive_skb_list_internal+0x6c1/0xc90
netif_receive_skb_list+0x4f/0x410
ieee80211_rx_napi+0x356/0x3c0
ieee80211_handle_queued_frames+0xd9/0x130
tasklet_action_common+0x235/0x3b0
handle_softirqs+0x1b1/0x770
do_softirq+0x48/0x80
__local_bh_enable_ip+0xf1/0x110
__dev_queue_xmit+0xe2e/0x3cc0
neigh_resolve_output+0x492/0x7f0
ip6_finish_output2+0x946/0x1aa0
__ip6_finish_output+0x5d5/0xd10
ip6_output+0x1c2/0x3e0
ndisc_send_skb+0x9ed/0x1d10
ndisc_send_ns+0xa9/0x130
addrconf_dad_work+0xae2/0x11a0
process_one_work+0x8e1/0x19c0
worker_thread+0x67e/0xe90
kthread+0x3c8/0x740
ret_from_fork+0x34b/0x430
ret_from_fork_asm+0x1a/0x30
Modules linked in:
---[ end trace 0000000000000000 ]---
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000032: 0000 [#3] SMP KASAN NOPTI
RIP: 0010:perf_tp_event+0x175/0xe70
KASAN: null-ptr-deref in range [0x0000000000000190-0x0000000000000197]
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: 1 UID: 0 PID: 3926 Comm: syz-executor.7 Tainted: G D W 6.17.0-rc3-next-20250829 #1 PREEMPT(voluntary)
RSP: 0018:ffff888047f1f780 EFLAGS: 00010012
Tainted: [D]=DIE, [W]=WARN
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: ffffc90007ac7000
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: ffff888047f1f9f0 R08: ffff88806cf31340 R09: ffffe8ffffd167d8
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: ffff88801e20c898 R12: dffffc0000000000
RSP: 0018:ffff88806cf08b80 EFLAGS: 00010012
R13: 0000000000000014 R14: ffff88806cf31340 R15: dffffc0000000000
RAX: 0000000000000032 RBX: ffffffffffffffa1 RCX: 0000000000000002
FS: 0000000000000000(0000) GS:ffff8880e55dd000(0000) knlGS:0000000000000000
RDX: ffff888046a73700 RSI: ffffffff818995b7 RDI: 0000000000000191
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
RBP: ffff88806cf08df0 R08: ffff88806cf313e8 R09: ffffe8ffffd167d8
CR2: 0000001b2cc26000 CR3: 00000000203b5000 CR4: 0000000000350ef0
R10: 0000000000000000 R11: ffff888018dbb098 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