------------[ cut here ]------------ WARNING: CPU: 1 PID: 6377 at net/mac80211/tx.c:5034 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5034 [inline] WARNING: CPU: 1 PID: 6377 at net/mac80211/tx.c:5034 __ieee80211_beacon_get+0x1200/0x15c0 net/mac80211/tx.c:5461 Modules linked in: CPU: 1 PID: 6377 Comm: syz-executor.0 Not tainted 6.8.0-syzkaller-08951-gfe46a7dd189e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5034 [inline] RIP: 0010:__ieee80211_beacon_get+0x1200/0x15c0 net/mac80211/tx.c:5461 Code: e8 b5 a0 a3 f6 eb 0d e8 ae a0 a3 f6 4c 8b bc 24 98 00 00 00 4c 89 ef e8 2e 9f fb f6 45 31 ed e9 4e fe ff ff e8 91 a0 a3 f6 90 <0f> 0b 90 e9 02 f7 ff ff e8 83 a0 a3 f6 90 0f 0b 90 e9 ea f8 ff ff RSP: 0018:ffffc90000a08a00 EFLAGS: 00010246 RAX: ffffffff8af154bf RBX: 0000000000000000 RCX: ffff888026acbc00 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: dffffc0000000000 R08: ffffffff8af14bbd R09: ffffffff8af145c0 R10: 0000000000000003 R11: ffff888026acbc00 R12: ffff88807f2a62d0 R13: ffff88801156c800 R14: ffff88807f2a6750 R15: ffff88807f2a4ca0 FS: 00007f451914f6c0(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020002030 CR3: 00000000216ca000 CR4: 0000000000350ef0 Call Trace: ieee80211_beacon_get_tim+0xb4/0x320 net/mac80211/tx.c:5588 ieee80211_beacon_get include/net/mac80211.h:5552 [inline] mac80211_hwsim_beacon_tx+0x398/0x7e0 drivers/net/wireless/virtual/mac80211_hwsim.c:2296 __iterate_interfaces+0x225/0x4c0 net/mac80211/util.c:772 ieee80211_iterate_active_interfaces_atomic+0xd8/0x170 net/mac80211/util.c:808 mac80211_hwsim_beacon+0xd4/0x1f0 drivers/net/wireless/virtual/mac80211_hwsim.c:2326 __run_hrtimer kernel/time/hrtimer.c:1692 [inline] __hrtimer_run_queues+0x597/0xd00 kernel/time/hrtimer.c:1756 hrtimer_run_softirq+0x19a/0x2c0 kernel/time/hrtimer.c:1773 __do_softirq+0x2be/0x943 kernel/softirq.c:554 invoke_softirq kernel/softirq.c:428 [inline] __irq_exit_rcu+0xf2/0x1c0 kernel/softirq.c:633 irq_exit_rcu+0x9/0x30 kernel/softirq.c:645 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1043 [inline] sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1043 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:sock_error include/net/sock.h:2457 [inline] RIP: 0010:__skb_try_recv_datagram+0x9b/0x6a0 net/core/datagram.c:251 Code: 00 e0 37 46 89 4c 8d ac 24 80 00 00 00 49 c1 ed 03 48 b8 f1 f1 f1 f1 04 f3 f3 f3 4b 89 44 35 00 e8 da bc 4e f8 48 89 5c 24 30 <4c> 8d a3 9c 01 00 00 4c 89 e0 48 c1 e8 03 42 0f b6 04 30 84 c0 0f RSP: 0018:ffffc9000bdcf5e0 EFLAGS: 00000293 RAX: ffffffff89463876 RBX: ffff88801189a800 RCX: ffff888026acbc00 RDX: 0000000000000000 RSI: ffff88801189a8e8 RDI: ffff88801189a800 RBP: ffffc9000bdcf6f0 R08: ffffc9000bdcf850 R09: ffffc9000bdcf800 R10: dffffc0000000000 R11: fffffbfff1f0e74e R12: ffff88801189a8e8 R13: 1ffff920017b9ecc R14: dffffc0000000000 R15: 1ffff920017b9f04 __unix_dgram_recvmsg+0x3ce/0x1450 net/unix/af_unix.c:2429 sock_recvmsg_nosec+0x190/0x1d0 net/socket.c:1046 ____sys_recvmsg+0x3c0/0x470 net/socket.c:2801 ___sys_recvmsg net/socket.c:2845 [inline] do_recvmmsg+0x474/0xae0 net/socket.c:2939 __sys_recvmmsg net/socket.c:3018 [inline] __do_sys_recvmmsg net/socket.c:3041 [inline] __se_sys_recvmmsg net/socket.c:3034 [inline] __x64_sys_recvmmsg+0x199/0x250 net/socket.c:3034 do_syscall_64+0xfd/0x240 entry_SYSCALL_64_after_hwframe+0x6d/0x75 RIP: 0033:0x7f451847dda9 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:00007f451914f0c8 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f45185ac050 RCX: 00007f451847dda9 RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000003 RBP: 00007f45184ca47a R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000006e R14: 00007f45185ac050 R15: 00007fff17422098 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: e0 37 loopne 0x39 2: 46 89 4c 8d ac mov %r9d,-0x54(%rbp,%r9,4) 7: 24 80 and $0x80,%al 9: 00 00 add %al,(%rax) b: 00 49 c1 add %cl,-0x3f(%rcx) e: ed in (%dx),%eax f: 03 48 b8 add -0x48(%rax),%ecx 12: f1 int1 13: f1 int1 14: f1 int1 15: f1 int1 16: 04 f3 add $0xf3,%al 18: f3 f3 4b 89 44 35 00 repz xrelease mov %rax,0x0(%r13,%r14,1) 1f: e8 da bc 4e f8 call 0xf84ebcfe 24: 48 89 5c 24 30 mov %rbx,0x30(%rsp) * 29: 4c 8d a3 9c 01 00 00 lea 0x19c(%rbx),%r12 <-- trapping instruction 30: 4c 89 e0 mov %r12,%rax 33: 48 c1 e8 03 shr $0x3,%rax 37: 42 0f b6 04 30 movzbl (%rax,%r14,1),%eax 3c: 84 c0 test %al,%al 3e: 0f .byte 0xf