------------[ cut here ]------------
WARNING: CPU: 1 PID: 3557 at net/mac80211/tx.c:4877 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4877 [inline]
WARNING: CPU: 1 PID: 3557 at net/mac80211/tx.c:4877 __ieee80211_beacon_get+0x178a/0x1ff0 net/mac80211/tx.c:5101
Modules linked in:
CPU: 1 PID: 3557 Comm: udevd Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4877 [inline]
RIP: 0010:__ieee80211_beacon_get+0x178a/0x1ff0 net/mac80211/tx.c:5101
Code: 24 f8 0f 0b 4f 89 64 2f 04 4f 89 64 2f 0c 43 c6 44 2f 14 f8 e9 19 fe ff ff e8 02 d3 24 f8 0f 0b e9 16 ef ff ff e8 f6 d2 24 f8 <0f> 0b e9 7c f2 ff ff e8 4a c6 6d 00 89 d9 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc90000dd08c0 EFLAGS: 00010246
RAX: ffffffff8954506a RBX: ffff888073d7a400 RCX: ffff88807c718000
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000dd0af8 R08: ffff88807c718000 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: f8f8f8f8f8f8f8f8
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff920001ba128
FS: 00007ff4a5bf1880(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ff4a6394e80 CR3: 0000000026593000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ieee80211_beacon_get_tim+0x48/0x840 net/mac80211/tx.c:5220
ieee80211_beacon_get include/net/mac80211.h:4983 [inline]
mac80211_hwsim_beacon_tx+0x104/0x900 drivers/net/wireless/mac80211_hwsim.c:1812
__iterate_interfaces+0x225/0x4c0 net/mac80211/util.c:793
ieee80211_iterate_active_interfaces_atomic+0xb3/0x140 net/mac80211/util.c:829
mac80211_hwsim_beacon+0x9b/0x180 drivers/net/wireless/mac80211_hwsim.c:1865
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x4ea/0xb60 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766
handle_softirqs+0x336/0x830 kernel/softirq.c:576
__do_softirq kernel/softirq.c:610 [inline]
invoke_softirq kernel/softirq.c:450 [inline]
__irq_exit_rcu+0x13b/0x230 kernel/softirq.c:659
irq_exit_rcu+0x5/0x20 kernel/softirq.c:671
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:__sanitizer_cov_trace_pc+0x58/0x60 kernel/kcov.c:215
Code: 10 16 00 00 83 fa 02 75 21 48 8b 91 18 16 00 00 48 8b 32 48 8d 7e 01 8b 89 14 16 00 00 48 39 cf 73 08 48 89 44 f2 08 48 89 3a 0f 1f 80 00 00 00 00 48 8b 04 24 65 48 8b 0d f4 4b 89 7e 65 8b
RSP: 0018:ffffc90002e3fb20 EFLAGS: 00000293
RAX: ffffffff81360de6 RBX: 000000005e44a000 RCX: ffff88807c718000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90002e3fe00 R08: ffffffff8e6b282f R09: 1ffffffff1cd6505
R10: dffffc0000000000 R11: fffffbfff1cd6506 R12: ffffea0000000000
R13: ffff88805097e980 R14: 000000000000002e R15: 0000000000000000
__phys_addr+0xb6/0x170 arch/x86/mm/physaddr.c:28
virt_to_head_page include/linux/mm.h:911 [inline]
___cache_free+0x2a/0x120 mm/slub.c:3511
qlist_free_all+0x35/0x90 mm/kasan/quarantine.c:176
kasan_quarantine_reduce+0x150/0x160 mm/kasan/quarantine.c:283
__kasan_slab_alloc+0x2f/0xc0 mm/kasan/common.c:444
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook+0x4c/0x380 mm/slab.h:519
slab_alloc_node mm/slub.c:3225 [inline]
slab_alloc mm/slub.c:3233 [inline]
kmem_cache_alloc+0x15d/0x280 mm/slub.c:3238
getname_flags+0xb7/0x4f0 fs/namei.c:138
getname fs/namei.c:217 [inline]
__do_sys_unlink fs/namei.c:4447 [inline]
__se_sys_unlink fs/namei.c:4445 [inline]
__x64_sys_unlink+0x38/0x50 fs/namei.c:4445
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7ff4a5d4d937
Code: 00 00 e9 a9 fd ff ff 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 5f 00 00 00 0f 05 c3 0f 1f 84 00 00 00 00 00 b8 57 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 8b 15 91 b4 0d 00 f7 d8 64 89 02 b8
RSP: 002b:00007ffcd2cff2a8 EFLAGS: 00000202 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0000000000000bb8 RCX: 00007ff4a5d4d937
RDX: 0000000000000000 RSI: 00007ffcd2cff390 RDI: 000055990c82e02e
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000559928e85ab0
R13: 000055990c849100 R14: 000055990c82e008 R15: 0000000000000000
----------------
Code disassembly (best guess):
0: 10 16 adc %dl,(%rsi)
2: 00 00 add %al,(%rax)
4: 83 fa 02 cmp $0x2,%edx
7: 75 21 jne 0x2a
9: 48 8b 91 18 16 00 00 mov 0x1618(%rcx),%rdx
10: 48 8b 32 mov (%rdx),%rsi
13: 48 8d 7e 01 lea 0x1(%rsi),%rdi
17: 8b 89 14 16 00 00 mov 0x1614(%rcx),%ecx
1d: 48 39 cf cmp %rcx,%rdi
20: 73 08 jae 0x2a
22: 48 89 44 f2 08 mov %rax,0x8(%rdx,%rsi,8)
27: 48 89 3a mov %rdi,(%rdx)
* 2a: c3 ret <-- trapping instruction
2b: 0f 1f 80 00 00 00 00 nopl 0x0(%rax)
32: 48 8b 04 24 mov (%rsp),%rax
36: 65 48 8b 0d f4 4b 89 mov %gs:0x7e894bf4(%rip),%rcx # 0x7e894c32
3d: 7e
3e: 65 gs
3f: 8b .byte 0x8b