------------[ cut here ]------------
!oldest
WARNING: net/wireless/scan.c:513 at cfg80211_bss_expire_oldest net/wireless/scan.c:513 [inline], CPU#0: udevd/4969
WARNING: net/wireless/scan.c:513 at __cfg80211_bss_update+0x19d8/0x2450 net/wireless/scan.c:2113, CPU#0: udevd/4969
Modules linked in:
CPU: 0 UID: 0 PID: 4969 Comm: udevd Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/05/2026
RIP: 0010:cfg80211_bss_expire_oldest net/wireless/scan.c:513 [inline]
RIP: 0010:__cfg80211_bss_update+0x19d8/0x2450 net/wireless/scan.c:2113
Code: 00 31 ff 41 89 c5 89 c6 e8 45 de ec f6 45 85 ed 0f 85 65 f9 ff ff e8 c7 e3 ec f6 90 0f 0b 90 e9 57 f9 ff ff e8 b9 e3 ec f6 90 <0f> 0b 90 e9 fc fa ff ff e8 ab e3 ec f6 48 8b 44 24 08 48 8d 88 ac
RSP: 0018:ffffc90000007348 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffffffff91457604 RCX: 0000000000000301
RDX: ffff88807c42a580 RSI: ffffffff8b1f3ed7 RDI: ffff88807c42a580
RBP: ffff8880577a3488 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff8880577a3400
R13: 0000000000000000 R14: dffffc0000000000 R15: ffff888057280190
FS: 00007fe823374880(0000) GS:ffff888123b53000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa9ec685e9c CR3: 000000007c511000 CR4: 00000000003526f0
Call Trace:
cfg80211_inform_single_bss_data+0x770/0x1dc0 net/wireless/scan.c:2440
cfg80211_inform_bss_data+0x230/0x3c20 net/wireless/scan.c:3300
cfg80211_inform_bss_frame_data+0x245/0x7c0 net/wireless/scan.c:3392
ieee80211_bss_info_update+0x310/0xab0 net/mac80211/scan.c:230
ieee80211_scan_rx+0x4e6/0xb60 net/mac80211/scan.c:364
__ieee80211_rx_handle_packet+0xbab/0xfc0 net/mac80211/rx.c:5427
ieee80211_rx_list+0xf19/0x2160 net/mac80211/rx.c:5720
ieee80211_rx_napi+0xdc/0x400 net/mac80211/rx.c:5743
ieee80211_rx include/net/mac80211.h:5449 [inline]
ieee80211_handle_queued_frames+0xc8/0x120 net/mac80211/main.c:452
tasklet_action_common+0x2de/0x3d0 kernel/softirq.c:961
handle_softirqs+0x1e6/0x9d0 kernel/softirq.c:645
__do_softirq kernel/softirq.c:679 [inline]
invoke_softirq kernel/softirq.c:519 [inline]
__irq_exit_rcu+0x16a/0x210 kernel/softirq.c:758
irq_exit_rcu+0x9/0x30 kernel/softirq.c:775
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0xa3/0xc0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:lock_release+0x19e/0x310 kernel/locking/lockdep.c:5968
Code: ff 65 0f c1 05 db bd a5 12 83 f8 01 0f 85 27 01 00 00 9c 58 f6 c4 02 0f 85 12 01 00 00 41 f7 c6 00 02 00 00 0f 85 c8 00 00 00 <48> 8b 44 24 10 65 48 2b 05 dd 76 a5 12 0f 85 4d 01 00 00 48 83 c4
RSP: 0018:ffffc9000455f898 EFLAGS: 00000206
RAX: 0000000000000046 RBX: ffffffff8edec4e0 RCX: ffffc9000455f8a4
RDX: 0000000000000000 RSI: ffffffff8e366aae RDI: ffffffff8c623580
RBP: ffffffff81b9a54e R08: 0000000000000001 R09: 0000000000000007
R10: 0000000000000200 R11: 0000000000017f37 R12: ffff88807c42a580
R13: ffffc9000455f950 R14: 0000000000000202 R15: 0000000000000001
rcu_lock_release include/linux/rcupdate.h:319 [inline]
rcu_read_unlock include/linux/rcupdate.h:880 [inline]
class_rcu_destructor include/linux/rcupdate.h:1216 [inline]
unwind_next_frame+0x3c3/0x2090 arch/x86/kernel/unwind_orc.c:495
arch_stack_walk+0x94/0xf0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x30/0x50 mm/kasan/common.c:57
kasan_save_track+0x14/0x30 mm/kasan/common.c:78
unpoison_slab_object mm/kasan/common.c:340 [inline]
__kasan_slab_alloc+0x89/0x90 mm/kasan/common.c:366
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4683 [inline]
slab_alloc_node mm/slub.c:4996 [inline]
kmem_cache_alloc_noprof+0x269/0x6a0 mm/slub.c:5010
alloc_filename fs/namei.c:147 [inline]
do_getname+0x35/0x390 fs/namei.c:187
class_filename_flags_constructor include/linux/fs.h:2586 [inline]
do_sys_openat2+0xc7/0x1e0 fs/open.c:1416
do_sys_open fs/open.c:1423 [inline]
__do_sys_openat fs/open.c:1439 [inline]
__se_sys_openat fs/open.c:1434 [inline]
__x64_sys_openat+0x12d/0x210 fs/open.c:1434
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe822ca7407
Code: 48 89 fa 4c 89 df e8 38 aa 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007ffd20a6ab40 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fe823374880 RCX: 00007fe822ca7407
RDX: 0000000000080000 RSI: 00007ffd20a6acc0 RDI: ffffffffffffff9c
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00005620022cc7f5
R13: 00005620022cc7f5 R14: 0000000000000001 R15: 00007ffd20a6f310
----------------
Code disassembly (best guess):
0: ff 65 0f jmp *0xf(%rbp)
3: c1 05 db bd a5 12 83 roll $0x83,0x12a5bddb(%rip) # 0x12a5bde5
a: f8 clc
b: 01 0f add %ecx,(%rdi)
d: 85 27 test %esp,(%rdi)
f: 01 00 add %eax,(%rax)
11: 00 9c 58 f6 c4 02 0f add %bl,0xf02c4f6(%rax,%rbx,2)
18: 85 12 test %edx,(%rdx)
1a: 01 00 add %eax,(%rax)
1c: 00 41 f7 add %al,-0x9(%rcx)
1f: c6 00 02 movb $0x2,(%rax)
22: 00 00 add %al,(%rax)
24: 0f 85 c8 00 00 00 jne 0xf2
* 2a: 48 8b 44 24 10 mov 0x10(%rsp),%rax <-- trapping instruction
2f: 65 48 2b 05 dd 76 a5 sub %gs:0x12a576dd(%rip),%rax # 0x12a57714
36: 12
37: 0f 85 4d 01 00 00 jne 0x18a
3d: 48 rex.W
3e: 83 .byte 0x83
3f: c4 .byte 0xc4