------------[ cut here ]------------
WARNING: CPU: 0 PID: 5278 at net/mac80211/tx.c:4944 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline]
WARNING: CPU: 0 PID: 5278 at net/mac80211/tx.c:4944 __ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5345
Modules linked in:
CPU: 0 PID: 5278 Comm: syz.1.253 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4944 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1233/0x1600 net/mac80211/tx.c:5345
Code: 24 4c 89 e7 e8 fe 0f 0a f8 45 31 f6 4c 8b bc 24 a0 00 00 00 e9 7a fe ff ff e8 f9 6f d1 f7 0f 0b e9 f6 f7 ff ff e8 ed 6f d1 f7 <0f> 0b e9 48 fb ff ff e8 e1 6f d1 f7 48 c7 c7 10 f1 fa 8d 4c 89 e6
RSP: 0018:ffffc90000007a30 EFLAGS: 00010246
RAX: ffffffff89b10563 RBX: ffffffff89b0f366 RCX: ffff88802e3dbb80
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff88802e3dbb80 R09: 0000000000000003
R10: 0000000000000007 R11: 0000000000000100 R12: ffff8880242de228
R13: dffffc0000000000 R14: ffff8880242de760 R15: ffff888057640c24
FS: 00007f23f15de6c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f23f07ea4c0 CR3: 0000000028cbf000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ieee80211_beacon_get_tim+0x63/0x4e0 net/mac80211/tx.c:5472
ieee80211_beacon_get include/net/mac80211.h:5335 [inline]
mac80211_hwsim_beacon_tx+0x21c/0xae0 drivers/net/wireless/mac80211_hwsim.c:2091
__iterate_interfaces+0x243/0x500 net/mac80211/util.c:788
ieee80211_iterate_active_interfaces_atomic+0xd7/0x170 net/mac80211/util.c:824
mac80211_hwsim_beacon+0xb7/0x1b0 drivers/net/wireless/mac80211_hwsim.c:2147
__run_hrtimer kernel/time/hrtimer.c:1747 [inline]
__hrtimer_run_queues+0x54a/0xd50 kernel/time/hrtimer.c:1811
hrtimer_run_softirq+0x183/0x2a0 kernel/time/hrtimer.c:1828
handle_softirqs+0x2a1/0x930 kernel/softirq.c:596
__do_softirq kernel/softirq.c:630 [inline]
invoke_softirq kernel/softirq.c:470 [inline]
__irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679
irq_exit_rcu+0x5/0x20 kernel/softirq.c:691
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline]
sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:arch_stack_walk+0x113/0x140 arch/x86/kernel/stacktrace.c:24
Code: ff 4c 89 ff e8 ce 8e 08 00 48 85 c0 74 1e 48 89 df 48 89 c6 41 ff d6 84 c0 74 11 4c 89 ff e8 d4 8f 08 00 83 bd 78 ff ff ff 00 <75> d5 65 48 8b 04 25 28 00 00 00 48 3b 45 d8 75 0d 48 83 c4 68 5b
RSP: 0018:ffffc90003547188 EFLAGS: 00000202
RAX: 0000000080000001 RBX: ffffc90003547240 RCX: 0000000080000000
RDX: 0000000000000001 RSI: 0000000000000000 RDI: 00000000ffffffff
RBP: ffffc90003547210 R08: ffffc900035471e7 R09: ffffc900035471d8
R10: dffffc0000000000 R11: fffff520006a8e3d R12: ffff88802e3dbb80
R13: 1ffff11005c7b81e R14: ffffffff817122e0 R15: ffffc90003547188
stack_trace_save+0xa6/0xf0 kernel/stacktrace.c:122
save_stack+0x121/0x230 mm/page_owner.c:127
__set_page_owner+0x19/0x60 mm/page_owner.c:190
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x173/0x1a0 mm/page_alloc.c:2559
prep_new_page mm/page_alloc.c:2566 [inline]
get_page_from_freelist+0x1a1e/0x1ab0 mm/page_alloc.c:4357
__alloc_pages+0x1ec/0x4f0 mm/page_alloc.c:5657
vm_area_alloc_pages mm/vmalloc.c:3002 [inline]
__vmalloc_area_node mm/vmalloc.c:3071 [inline]
__vmalloc_node_range+0x944/0x13b0 mm/vmalloc.c:3243
vmalloc_user+0x70/0x80 mm/vmalloc.c:3397
vb2_vmalloc_alloc+0xec/0x330 drivers/media/common/videobuf2/videobuf2-vmalloc.c:47
__vb2_buf_mem_alloc drivers/media/common/videobuf2/videobuf2-core.c:233 [inline]
__vb2_queue_alloc+0x794/0x1410 drivers/media/common/videobuf2/videobuf2-core.c:448
vb2_core_reqbufs+0xa3a/0x1110 drivers/media/common/videobuf2/videobuf2-core.c:852
v4l2_m2m_reqbufs drivers/media/v4l2-core/v4l2-mem2mem.c:579 [inline]
v4l2_m2m_ioctl_reqbufs+0xd9/0x1c0 drivers/media/v4l2-core/v4l2-mem2mem.c:1373
__video_do_ioctl+0xa03/0xe00 drivers/media/v4l2-core/v4l2-ioctl.c:3038
video_usercopy+0x994/0x1450 drivers/media/v4l2-core/v4l2-ioctl.c:3385
v4l2_ioctl+0x183/0x1d0 drivers/media/v4l2-core/v4l2-dev.c:364
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f23f079cdd9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f23f15de028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f23f0a16090 RCX: 00007f23f079cdd9
RDX: 0000200000000000 RSI: 00000000c0145608 RDI: 0000000000000005
RBP: 00007f23f0832d69 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f23f0a16128 R14: 00007f23f0a16090 R15: 00007ffdcc031628
----------------
Code disassembly (best guess):
0: ff 4c 89 ff decl -0x1(%rcx,%rcx,4)
4: e8 ce 8e 08 00 call 0x88ed7
9: 48 85 c0 test %rax,%rax
c: 74 1e je 0x2c
e: 48 89 df mov %rbx,%rdi
11: 48 89 c6 mov %rax,%rsi
14: 41 ff d6 call *%r14
17: 84 c0 test %al,%al
19: 74 11 je 0x2c
1b: 4c 89 ff mov %r15,%rdi
1e: e8 d4 8f 08 00 call 0x88ff7
23: 83 bd 78 ff ff ff 00 cmpl $0x0,-0x88(%rbp)
* 2a: 75 d5 jne 0x1 <-- trapping instruction
2c: 65 48 8b 04 25 28 00 mov %gs:0x28,%rax
33: 00 00
35: 48 3b 45 d8 cmp -0x28(%rbp),%rax
39: 75 0d jne 0x48
3b: 48 83 c4 68 add $0x68,%rsp
3f: 5b pop %rbx