------------[ cut here ]------------ WARNING: CPU: 0 PID: 6502 at net/mac80211/tx.c:5040 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5040 [inline] WARNING: CPU: 0 PID: 6502 at net/mac80211/tx.c:5040 __ieee80211_beacon_get+0x1202/0x15c0 net/mac80211/tx.c:5469 Modules linked in: CPU: 0 UID: 0 PID: 6502 Comm: syz.0.167 Not tainted 6.13.0-rc3-syzkaller-00136-g8faabc041a00 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 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 13 0f 64 f6 eb 0d e8 0c 0f 64 f6 4c 8b bc 24 98 00 00 00 4c 89 ef e8 2c 45 bc f6 45 31 ed e9 4c fe ff ff e8 ef 0e 64 f6 90 <0f> 0b 90 e9 00 f7 ff ff e8 e1 0e 64 f6 90 0f 0b 90 e9 e8 f8 ff ff vkms_vblank_simulate: vblank timer overrun RSP: 0018:ffffc900000079e0 EFLAGS: 00010246 RAX: ffffffff8b3b64b1 RBX: 0000000000000000 RCX: ffff8880302a9e00 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffffffff8b3b5bad R09: ffffffff8b3b55b0 R10: 0000000000000003 R11: ffff8880302a9e00 R12: ffff888024b5a500 R13: ffff888070586000 R14: ffff888024b5a9d0 R15: ffff888024b58d80 FS: 00007fde11c5f6c0(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c3ce0b7 CR3: 000000007bc3a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_beacon_get_tim+0xb4/0x320 net/mac80211/tx.c:5596 ieee80211_beacon_get include/net/mac80211.h:5635 [inline] mac80211_hwsim_beacon_tx+0x39d/0x850 drivers/net/wireless/virtual/mac80211_hwsim.c:2311 __iterate_interfaces+0x297/0x570 net/mac80211/util.c:758 ieee80211_iterate_active_interfaces_atomic+0xd8/0x170 net/mac80211/util.c:794 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/0xd30 kernel/time/hrtimer.c:1803 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1820 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [inline] invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678 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 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__sanitizer_cov_trace_switch+0x110/0x120 kernel/kcov.c:352 Code: 43 28 4c 39 f8 77 a3 49 ff c4 4c 89 21 4c 89 44 0b 08 4c 89 74 0b 10 48 89 7c 0b 18 4c 89 4c 0b 20 eb 87 5b 41 5c 41 5e 41 5f cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 RSP: 0018:ffffc9001c1c7218 EFLAGS: 00000246 RAX: 0000000000000002 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000000002 RSI: ffffffff8f004090 RDI: 0000000000000001 RBP: ffffc9001c1c7510 R08: 0000000000000003 R09: ffffffff847307e4 R10: 0000000000000002 R11: ffff8880302a9e00 R12: ffffc9001c1c7420 R13: ffff8880291a38c0 R14: ffff888060307380 R15: ffffc9001c1c7480 smack_socket_sock_rcv_skb+0x174/0x13a0 security/smack/smack_lsm.c:4187 security_sock_rcv_skb+0x90/0x280 security/security.c:4778 sk_filter_trim_cap+0x184/0xa80 net/core/filter.c:151 sk_filter include/linux/filter.h:1062 [inline] unix_dgram_sendmsg+0xb15/0x1f80 net/unix/af_unix.c:2061 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg+0x221/0x270 net/socket.c:726 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2583 ___sys_sendmsg net/socket.c:2637 [inline] __sys_sendmmsg+0x36a/0x720 net/socket.c:2726 __do_sys_sendmmsg net/socket.c:2753 [inline] __se_sys_sendmmsg net/socket.c:2750 [inline] __x64_sys_sendmmsg+0xa0/0xb0 net/socket.c:2750 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: 0033:0x7fde10d85d29 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fde11c5f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007fde10f75fa0 RCX: 00007fde10d85d29 RDX: 0000000000000651 RSI: 0000000020000000 RDI: 0000000000000004 RBP: 00007fde10e01aa8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fde10f75fa0 R15: 00007ffe4e76c608 ---------------- Code disassembly (best guess): 0: 43 28 4c 39 f8 sub %cl,-0x8(%r9,%r15,1) 5: 77 a3 ja 0xffffffaa 7: 49 ff c4 inc %r12 a: 4c 89 21 mov %r12,(%rcx) d: 4c 89 44 0b 08 mov %r8,0x8(%rbx,%rcx,1) 12: 4c 89 74 0b 10 mov %r14,0x10(%rbx,%rcx,1) 17: 48 89 7c 0b 18 mov %rdi,0x18(%rbx,%rcx,1) 1c: 4c 89 4c 0b 20 mov %r9,0x20(%rbx,%rcx,1) 21: eb 87 jmp 0xffffffaa 23: 5b pop %rbx 24: 41 5c pop %r12 26: 41 5e pop %r14 28: 41 5f pop %r15 * 2a: c3 ret <-- trapping instruction 2b: cc int3 2c: cc int3 2d: cc int3 2e: cc int3 2f: 66 2e 0f 1f 84 00 00 cs nopw 0x0(%rax,%rax,1) 36: 00 00 00 39: 90 nop 3a: 90 nop 3b: 90 nop 3c: 90 nop 3d: 90 nop 3e: 90 nop 3f: 90 nop