------------[ cut here ]------------
WARNING: CPU: 1 PID: 3795 at net/mac80211/tx.c:4851 __ieee80211_beacon_get+0x183d/0x2080 net/mac80211/tx.c:5075
Modules linked in:
CPU: 1 PID: 3795 Comm: syz-executor.3 Not tainted 5.15.152-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4851 [inline]
RIP: 0010:__ieee80211_beacon_get+0x183d/0x2080 net/mac80211/tx.c:5075
Code: ff e8 b7 bf cc f7 0f 0b e9 4b fa ff ff e8 ab bf cc f7 0f 0b e9 3b fe ff ff e8 9f bf cc f7 0f 0b e9 06 ee ff ff e8 93 bf cc f7 <0f> 0b e9 91 f0 ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c 2d ea
RSP: 0018:ffffc90000dd0840 EFLAGS: 00010246
RAX: ffffffff89b37a3d RBX: 0000000000000000 RCX: ffff88807cab5940
RDX: 0000000080000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90000dd0a70 R08: ffffffff89b36ac8 R09: ffffffff89b3649b
R10: 0000000000000003 R11: ffff88807cab5940 R12: dffffc0000000000
R13: ffff888064be0c80 R14: ffff888064be2298 R15: 1ffff920001ba118
FS: 00007f6a1145b6c0(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020146000 CR3: 0000000065b04000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
ieee80211_beacon_get_tim+0xb7/0x950 net/mac80211/tx.c:5194
ieee80211_beacon_get include/net/mac80211.h:4981 [inline]
mac80211_hwsim_beacon_tx+0xe2/0x8a0 drivers/net/wireless/mac80211_hwsim.c:1812
__iterate_interfaces+0x21e/0x4b0 net/mac80211/util.c:793
ieee80211_iterate_active_interfaces_atomic+0xaf/0x140 net/mac80211/util.c:829
mac80211_hwsim_beacon+0xa7/0x180 drivers/net/wireless/mac80211_hwsim.c:1865
__run_hrtimer kernel/time/hrtimer.c:1686 [inline]
__hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1750
hrtimer_run_softirq+0x196/0x2c0 kernel/time/hrtimer.c:1767
__do_softirq+0x3b3/0x93a kernel/softirq.c:558
invoke_softirq kernel/softirq.c:432 [inline]
__irq_exit_rcu+0x155/0x240 kernel/softirq.c:637
irq_exit_rcu+0x5/0x20 kernel/softirq.c:649
sysvec_apic_timer_interrupt+0x91/0xb0 arch/x86/kernel/apic/apic.c:1096
asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:638
RIP: 0010:do_user_addr_fault arch/x86/mm/fault.c:1303 [inline]
RIP: 0010:handle_page_fault arch/x86/mm/fault.c:1485 [inline]
RIP: 0010:exc_page_fault+0x12b/0x740 arch/x86/mm/fault.c:1541
Code: 00 03 74 0d e8 16 f5 6a f7 fb bb 54 02 00 00 eb 14 bb 14 02 00 00 f6 80 91 00 00 00 02 74 06 e8 fb f4 6a f7 fb 0f 1f 44 00 00 <44> 89 e8 83 e0 02 48 d1 e8 09 c3 41 89 de 41 81 ce 00 01 00 00 41
RSP: 0018:ffffc90003787928 EFLAGS: 00000282
RAX: e5c0025750895900 RBX: 0000000000000214 RCX: ffffffff913c6f03
RDX: dffffc0000000000 RSI: ffffffff8a8b1500 RDI: ffffffff8ad88f00
RBP: 0000000020146000 R08: ffffffff8186b7e0 R09: fffffbfff1bc71b6
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88807a778000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:568
RIP: 0010:copy_user_generic_unrolled+0x86/0xc0 arch/x86/lib/copy_user_64.S:91
Code: 4c 8b 5e 38 4c 89 47 20 4c 89 4f 28 4c 89 57 30 4c 89 5f 38 48 8d 76 40 48 8d 7f 40 ff c9 75 b6 89 d1 83 e2 07 c1 e9 03 74 12 <4c> 8b 06 4c 89 07 48 8d 76 08 48 8d 7f 08 ff c9 75 ee 21 d2 74 10
RSP: 0018:ffffc90003787a48 EFLAGS: 00050202
RAX: ffffffff84078201 RBX: 0000000020146038 RCX: 0000000000000007
RDX: 0000000000000000 RSI: 0000000020146000 RDI: ffffc90003787ae0
RBP: ffffc90003787c70 R08: dffffc0000000000 R09: fffff520006f0f63
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000038
R13: 00007ffffffff000 R14: ffffc90003787ae0 R15: 0000000020146000
copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline]
raw_copy_from_user arch/x86/include/asm/uaccess_64.h:52 [inline]
_copy_from_user+0xf9/0x170 lib/usercopy.c:23
copy_from_user include/linux/uaccess.h:192 [inline]
__copy_msghdr_from_user net/socket.c:2313 [inline]
copy_msghdr_from_user net/socket.c:2364 [inline]
recvmsg_copy_msghdr net/socket.c:2616 [inline]
___sys_recvmsg+0x150/0x690 net/socket.c:2688
do_recvmmsg+0x36f/0x8f0 net/socket.c:2786
__sys_recvmmsg net/socket.c:2865 [inline]
__do_sys_recvmmsg net/socket.c:2888 [inline]
__se_sys_recvmmsg net/socket.c:2881 [inline]
__x64_sys_recvmmsg+0x195/0x240 net/socket.c:2881
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7f6a120fbda9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f6a1145b0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f6a1222a050 RCX: 00007f6a120fbda9
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00007f6a1214847a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f6a1222a050 R15: 00007ffc43ac04c8
----------------
Code disassembly (best guess):
0: 00 03 add %al,(%rbx)
2: 74 0d je 0x11
4: e8 16 f5 6a f7 call 0xf76af51f
9: fb sti
a: bb 54 02 00 00 mov $0x254,%ebx
f: eb 14 jmp 0x25
11: bb 14 02 00 00 mov $0x214,%ebx
16: f6 80 91 00 00 00 02 testb $0x2,0x91(%rax)
1d: 74 06 je 0x25
1f: e8 fb f4 6a f7 call 0xf76af51f
24: fb sti
25: 0f 1f 44 00 00 nopl 0x0(%rax,%rax,1)
* 2a: 44 89 e8 mov %r13d,%eax <-- trapping instruction
2d: 83 e0 02 and $0x2,%eax
30: 48 d1 e8 shr %rax
33: 09 c3 or %eax,%ebx
35: 41 89 de mov %ebx,%r14d
38: 41 81 ce 00 01 00 00 or $0x100,%r14d
3f: 41 rex.B