------------[ cut here ]------------
WARNING: CPU: 0 PID: 6384 at net/mac80211/tx.c:4859 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
WARNING: CPU: 0 PID: 6384 at net/mac80211/tx.c:4859 __ieee80211_beacon_get+0x179f/0x2000 net/mac80211/tx.c:5083
Modules linked in:
CPU: 0 PID: 6384 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4859 [inline]
RIP: 0010:__ieee80211_beacon_get+0x179f/0x2000 net/mac80211/tx.c:5083
Code: 2a 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 0d 4b 2a f8 0f 0b e9 03 ef ff ff e8 01 4b 2a f8 <0f> 0b e9 76 f2 ff ff e8 a5 92 6d 00 89 d9 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc900000078e0 EFLAGS: 00010246
RAX: ffffffff894ed60f RBX: ffff88805f73a268 RCX: ffff888077b11dc0
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000007b08 R08: ffff888077b11dc0 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff88805fc6b400
R13: dffffc0000000000 R14: 0000000000000000 R15: 1ffff92000000f2c
FS: 000055557ea2c500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f76d3b46b28 CR3: 000000005137e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ieee80211_beacon_get_tim+0x48/0x840 net/mac80211/tx.c:5202
ieee80211_beacon_get include/net/mac80211.h:4983 [inline]
mac80211_hwsim_beacon_tx+0xf4/0x920 drivers/net/wireless/mac80211_hwsim.c:1812
__iterate_interfaces+0x243/0x500 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+0x4f2/0xb70 kernel/time/hrtimer.c:1749
hrtimer_run_softirq+0x176/0x240 kernel/time/hrtimer.c:1766
handle_softirqs+0x339/0x830 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:debug_check_no_locks_freed+0x229/0x3e0 kernel/locking/lockdep.c:6438
Code: 44 24 60 f7 44 24 60 00 02 00 00 c6 44 13 04 f8 0f 85 fb 00 00 00 f7 44 24 30 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <48> c7 04 13 00 00 00 00 c7 44 13 08 00 00 00 00 65 48 8b 04 25 28
RSP: 0018:ffffc9000312fb00 EFLAGS: 00000206
RAX: 0000000000000000 RBX: 1ffff92000625f68 RCX: ffff88801f6ff200
RDX: dffffc0000000000 RSI: 0000000000000098 RDI: ffff888019bc5480
RBP: ffffc9000312fbf0 R08: ffff888019bc5523 R09: 1ffff11003378aa4
R10: dffffc0000000000 R11: ffffed1003378aa5 R12: ffff888077b12900
R13: 1ffff1100ef62515 R14: 0000000000000002 R15: ffff888077b12910
__init_rwsem+0x24/0x160 kernel/locking/rwsem.c:320
inode_init_always+0x78c/0xcb0 fs/inode.c:216
alloc_inode fs/inode.c:268 [inline]
new_inode_pseudo+0x8e/0x210 fs/inode.c:1001
new_inode+0x25/0x1c0 fs/inode.c:1030
shmem_get_inode+0x334/0xa90 mm/shmem.c:2290
shmem_symlink+0x97/0x6c0 mm/shmem.c:3082
vfs_symlink+0x247/0x3d0 fs/namei.c:4437
do_symlinkat+0x1ab/0x6b0 fs/namei.c:4466
__do_sys_symlinkat fs/namei.c:4483 [inline]
__se_sys_symlinkat fs/namei.c:4480 [inline]
__x64_sys_symlinkat+0x95/0xa0 fs/namei.c:4480
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: 0033:0x7f76d3aae8d7
Code: 44 00 00 48 89 f2 31 c9 48 89 fe bf 9c ff ff ff e9 8e f5 ff ff 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 b8 0a 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd10e8b138 EFLAGS: 00000202 ORIG_RAX: 000000000000010a
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f76d3aae8d7
RDX: 00007f76d3b46c53 RSI: 00000000ffffff9c RDI: 00007ffd10e8b1d0
RBP: 00007ffd10e8b17c R08: 0000000000000001 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000009f
R13: 00000000000927c0 R14: 0000000000038e78 R15: 00007ffd10e8b1d0
----------------
Code disassembly (best guess):
0: 44 24 60 rex.R and $0x60,%al
3: f7 44 24 60 00 02 00 testl $0x200,0x60(%rsp)
a: 00
b: c6 44 13 04 f8 movb $0xf8,0x4(%rbx,%rdx,1)
10: 0f 85 fb 00 00 00 jne 0x111
16: f7 44 24 30 00 02 00 testl $0x200,0x30(%rsp)
1d: 00
1e: 74 01 je 0x21
20: fb sti
21: 48 c7 44 24 40 0e 36 movq $0x45e0360e,0x40(%rsp)
28: e0 45
* 2a: 48 c7 04 13 00 00 00 movq $0x0,(%rbx,%rdx,1) <-- trapping instruction
31: 00
32: c7 44 13 08 00 00 00 movl $0x0,0x8(%rbx,%rdx,1)
39: 00
3a: 65 gs
3b: 48 rex.W
3c: 8b .byte 0x8b
3d: 04 25 add $0x25,%al
3f: 28 .byte 0x28