syzbot

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WARNING: CPU: 1 PID: 6006 at net/mac80211/tx.c:5040 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5040 [inline]
WARNING: CPU: 1 PID: 6006 at net/mac80211/tx.c:5040 __ieee80211_beacon_get+0x1202/0x15c0 net/mac80211/tx.c:5469
Modules linked in:
CPU: 1 UID: 0 PID: 6006 Comm: syz-executor368 Not tainted 6.12.0-syzkaller-09567-g7eef7e306d3c #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:5040 [inline]
RIP: 0010:__ieee80211_beacon_get+0x1202/0x15c0 net/mac80211/tx.c:5469
Code: e8 a3 39 54 f6 eb 0d e8 9c 39 54 f6 4c 8b bc 24 98 00 00 00 4c 89 ef e8 ac ae af f6 45 31 ed e9 4c fe ff ff e8 7f 39 54 f6 90 <0f> 0b 90 e9 00 f7 ff ff e8 71 39 54 f6 90 0f 0b 90 e9 e8 f8 ff ff
RSP: 0018:ffffc90000a18a00 EFLAGS: 00010246
RAX: ffffffff8b41a351 RBX: 0000000000000000 RCX: ffff888027011e00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffffffff8b419a4d R09: ffffffff8b419450
R10: 0000000000000003 R11: ffff888027011e00 R12: ffff888056faa508
R13: ffff88807c628800 R14: ffff888056faa9d8 R15: ffff888056fa8d80
FS:  00007fb97e8566c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000207c5030 CR3: 0000000027762000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 ieee80211_beacon_get_tim+0xb4/0x320 net/mac80211/tx.c:5596
 ieee80211_beacon_get include/net/mac80211.h:5632 [inline]
 mac80211_hwsim_beacon_tx+0x39d/0x850 drivers/net/wireless/virtual/mac80211_hwsim.c:2311
 __iterate_interfaces+0x297/0x570 net/mac80211/util.c:775
 ieee80211_iterate_active_interfaces_atomic+0xd8/0x170 net/mac80211/util.c:811
 mac80211_hwsim_beacon+0xd4/0x1f0 drivers/net/wireless/virtual/mac80211_hwsim.c:2345
 __run_hrtimer kernel/time/hrtimer.c:1739 [inline]
 __hrtimer_run_queues+0x59b/0xd50 kernel/time/hrtimer.c:1803
 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1820
 handle_softirqs+0x2c5/0x980 kernel/softirq.c:554
 __do_softirq kernel/softirq.c:588 [inline]
 invoke_softirq kernel/softirq.c:428 [inline]
 __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:655
 irq_exit_rcu+0x9/0x30 kernel/softirq.c:671
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
 sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:kasan_check_range+0xc/0x290 mm/kasan/generic.c:188
Code: 0f 0b 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 66 0f 1f 00 55 41 57 41 56 41 54 53 <b0> 01 48 85 f6 0f 84 a0 01 00 00 4c 8d 04 37 49 39 f8 0f 82 56 02
RSP: 0018:ffffc900047af590 EFLAGS: 00000246
RAX: 1ffff920008f5ef9 RBX: ffffc900047af7c8 RCX: ffffffff8a626d0a
RDX: 0000000000000000 RSI: 0000000000000008 RDI: ffff888075f28608
RBP: ffffc900047af6f0 R08: ffffffff8a6266a2 R09: 1ffff1100ebe50c1
R10: dffffc0000000000 R11: ffffed100ebe50c2 R12: 1ffff920008f5ec0
R13: ffffc900047af7c0 R14: ffff888075f28608 R15: dffffc0000000000
 instrument_atomic_read include/linux/instrumented.h:68 [inline]
 _test_bit include/asm-generic/bitops/instrumented-non-atomic.h:141 [inline]
 scm_has_secdata include/net/scm.h:124 [inline]
 __scm_recv_common include/net/scm.h:178 [inline]
 scm_recv_unix+0x7da/0xad0 include/net/scm.h:214
 __unix_dgram_recvmsg+0xcdd/0x12f0 net/unix/af_unix.c:2517
 sock_recvmsg_nosec+0x18e/0x1d0 net/socket.c:1033
 ____sys_recvmsg+0x3cd/0x480 net/socket.c:2801
 ___sys_recvmsg net/socket.c:2845 [inline]
 do_recvmmsg+0x426/0xab0 net/socket.c:2940
 __sys_recvmmsg net/socket.c:3014 [inline]
 __do_sys_recvmmsg net/socket.c:3037 [inline]
 __se_sys_recvmmsg net/socket.c:3030 [inline]
 __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3030
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb97e8c5bf9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 81 1d 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:00007fb97e856228 EFLAGS: 00000246 ORIG_RAX: 000000000000012b
RAX: ffffffffffffffda RBX: 00007fb97e948438 RCX: 00007fb97e8c5bf9
RDX: 00000000040002db RSI: 0000000020000740 RDI: 0000000000000003
RBP: 00007fb97e948430 R08: 0000000000000000 R09: 00007fb97e8566c0
R10: 0000000000000002 R11: 0000000000000246 R12: 00007fb97e94843c
R13: 00007fb97e915638 R14: 0031313230386c6e R15: 00007ffe5cd29ce8
 </TASK>
----------------
Code disassembly (best guess):
   0:	0f 0b                	ud2
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00
   c:	66 90                	xchg   %ax,%ax
   e:	90                   	nop
   f:	90                   	nop
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	90                   	nop
  1c:	90                   	nop
  1d:	90                   	nop
  1e:	66 0f 1f 00          	nopw   (%rax)
  22:	55                   	push   %rbp
  23:	41 57                	push   %r15
  25:	41 56                	push   %r14
  27:	41 54                	push   %r12
  29:	53                   	push   %rbx
* 2a:	b0 01                	mov    $0x1,%al <-- trapping instruction
  2c:	48 85 f6             	test   %rsi,%rsi
  2f:	0f 84 a0 01 00 00    	je     0x1d5
  35:	4c 8d 04 37          	lea    (%rdi,%rsi,1),%r8
  39:	49 39 f8             	cmp    %rdi,%r8
  3c:	0f                   	.byte 0xf
  3d:	82                   	(bad)
  3e:	56                   	push   %rsi
  3f:	02                   	.byte 0x2