syzbot

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WARNING: CPU: 1 PID: 4514 at net/mac80211/tx.c:4934 __ieee80211_beacon_get+0x1abc/0x2110 net/mac80211/tx.c:5255
Modules linked in:
CPU: 1 PID: 4514 Comm: syz-executor624 Not tainted 6.1.123-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4934 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1abc/0x2110 net/mac80211/tx.c:5255
Code: ff ff ff e8 56 e0 50 f7 0f 0b 48 8b 7c 24 20 e8 aa 6d 66 fe e9 6f e8 ff ff e8 40 e0 50 f7 0f 0b e9 92 ed ff ff e8 34 e0 50 f7 <0f> 0b e9 26 f1 ff ff 44 89 f1 80 e1 07 80 c1 03 38 c1 0f 8c fc e8
RSP: 0018:ffffc900001e0820 EFLAGS: 00010246
RAX: ffffffff8a39bbcc RBX: 0000000000000000 RCX: ffff888076365940
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900001e0a30 R08: ffffffff8a39acec R09: ffffffff8a39a4f2
R10: 0000000000000003 R11: ffff888076365940 R12: dffffc0000000000
R13: 1ffff9200003c11c R14: ffff88807a2f2258 R15: ffffffff8a39a1c0
FS:  00007f2e2d2ca6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020136030 CR3: 000000007d0fe000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0xb1/0x5d0 net/mac80211/tx.c:5342
 ieee80211_beacon_get include/net/mac80211.h:5249 [inline]
 mac80211_hwsim_beacon_tx+0x1d2/0xaa0 drivers/net/wireless/mac80211_hwsim.c:2086
 __iterate_interfaces+0x21e/0x4b0 net/mac80211/util.c:788
 ieee80211_iterate_active_interfaces_atomic+0xd4/0x170 net/mac80211/util.c:824
 mac80211_hwsim_beacon+0xd0/0x1e0 drivers/net/wireless/mac80211_hwsim.c:2142
 __run_hrtimer kernel/time/hrtimer.c:1689 [inline]
 __hrtimer_run_queues+0x5e5/0xe50 kernel/time/hrtimer.c:1753
 hrtimer_run_softirq+0x196/0x2c0 kernel/time/hrtimer.c:1770
 handle_softirqs+0x2ee/0xa40 kernel/softirq.c:571
 __do_softirq kernel/softirq.c:605 [inline]
 invoke_softirq kernel/softirq.c:445 [inline]
 __irq_exit_rcu+0x157/0x240 kernel/softirq.c:654
 irq_exit_rcu+0x5/0x20 kernel/softirq.c:666
 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
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:182 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0xc/0x60 kernel/kcov.c:216
Code: 89 fb e8 17 00 00 00 48 8b 3d a8 6d 10 0d 48 89 de 5b e9 37 bd 56 00 cc cc cc cc cc cc cc 48 8b 04 24 65 48 8b 0d 34 d3 77 7e <65> 8b 15 35 d3 77 7e 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75
RSP: 0018:ffffc90004647950 EFLAGS: 00000202
RAX: ffffffff84447437 RBX: 00007fffffffefc8 RCX: ffff888076365940
RDX: 0000000000000000 RSI: 0000000020136700 RDI: 00007fffffffefc8
RBP: ffffc90004647a90 R08: ffffffff84447428 R09: fffffbfff1d360ee
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000038
R13: dffffc0000000000 R14: ffffc900046479e0 R15: 0000000020136700
 _copy_from_user+0xd7/0x170 lib/usercopy.c:21
 copy_from_user include/linux/uaccess.h:161 [inline]
 copy_msghdr_from_user+0xaa/0x670 net/socket.c:2449
 recvmsg_copy_msghdr net/socket.c:2704 [inline]
 ___sys_recvmsg net/socket.c:2776 [inline]
 do_recvmmsg+0x408/0xad0 net/socket.c:2874
 __sys_recvmmsg net/socket.c:2953 [inline]
 __do_sys_recvmmsg net/socket.c:2976 [inline]
 __se_sys_recvmmsg net/socket.c:2969 [inline]
 __x64_sys_recvmmsg+0x195/0x240 net/socket.c:2969
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f2e2d32c7a9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 91 1a 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:00007f2e2d2ca228 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007f2e2d3b6438 RCX: 00007f2e2d32c7a9
RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00007f2e2d3b6430 R08: 0000000000000000 R09: 00007f2e2d2ca6c0
R10: 0000000000000002 R11: 0000000000000246 R12: 00007f2e2d3b643c
R13: 00007f2e2d38336c R14: 0031313230386c6e R15: 00007fff429bae78
 </TASK>
----------------
Code disassembly (best guess):
   0:	89 fb                	mov    %edi,%ebx
   2:	e8 17 00 00 00       	call   0x1e
   7:	48 8b 3d a8 6d 10 0d 	mov    0xd106da8(%rip),%rdi        # 0xd106db6
   e:	48 89 de             	mov    %rbx,%rsi
  11:	5b                   	pop    %rbx
  12:	e9 37 bd 56 00       	jmp    0x56bd4e
  17:	cc                   	int3
  18:	cc                   	int3
  19:	cc                   	int3
  1a:	cc                   	int3
  1b:	cc                   	int3
  1c:	cc                   	int3
  1d:	cc                   	int3
  1e:	48 8b 04 24          	mov    (%rsp),%rax
  22:	65 48 8b 0d 34 d3 77 	mov    %gs:0x7e77d334(%rip),%rcx        # 0x7e77d35e
  29:	7e
* 2a:	65 8b 15 35 d3 77 7e 	mov    %gs:0x7e77d335(%rip),%edx        # 0x7e77d366 <-- trapping instruction
  31:	81 e2 00 01 ff 00    	and    $0xff0100,%edx
  37:	74 11                	je     0x4a
  39:	81 fa 00 01 00 00    	cmp    $0x100,%edx
  3f:	75                   	.byte 0x75