------------[ cut here ]------------ WARNING: CPU: 0 PID: 12967 at net/mac80211/tx.c:4851 __ieee80211_beacon_get+0x183d/0x2080 net/mac80211/tx.c:5075 Modules linked in: CPU: 0 PID: 12967 Comm: syz.8.1496 Not tainted 5.15.173-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024 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 e7 c9 b4 f7 0f 0b e9 4b fa ff ff e8 db c9 b4 f7 0f 0b e9 3b fe ff ff e8 cf c9 b4 f7 0f 0b e9 06 ee ff ff e8 c3 c9 b4 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:ffffc90000007840 EFLAGS: 00010246 RAX: ffffffff89cba9dd RBX: 0000000000000000 RCX: ffff88802c968000 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000007a70 R08: ffffffff89cb9a68 R09: ffffffff89cb943b R10: 0000000000000003 R11: ffff88802c968000 R12: dffffc0000000000 R13: ffff8880228c0c80 R14: ffff8880228c2298 R15: 1ffff92000000f18 FS: 00007f93d796c6c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000900 CR3: 00000000202f2000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 000000000000000e DR6: 00000000ffff0ff0 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:1688 [inline] __hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1752 hrtimer_run_softirq+0x196/0x2c0 kernel/time/hrtimer.c:1769 handle_softirqs+0x3a7/0x930 kernel/softirq.c:558 __do_softirq kernel/softirq.c:592 [inline] invoke_softirq kernel/softirq.c:432 [inline] __irq_exit_rcu+0x157/0x240 kernel/softirq.c:641 irq_exit_rcu+0x5/0x20 kernel/softirq.c:653 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline] sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1108 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676 RIP: 0010:__skb_try_recv_datagram+0x157/0x6a0 Code: 8b 74 24 04 83 e6 40 48 c7 c1 d0 67 44 88 48 0f 45 c8 48 89 4c 24 50 31 ff e8 15 65 38 f9 48 8d 83 14 04 00 00 48 89 44 24 48 <48> 8d 83 16 04 00 00 48 89 44 24 18 49 8d 46 08 48 89 44 24 58 49 RSP: 0018:ffffc900032ff620 EFLAGS: 00000297 RAX: ffff888057435c14 RBX: ffff888057435800 RCX: ffffffff884467d0 RDX: ffff88802c968000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900032ff730 R08: ffffffff884811eb R09: ffffc900032ff840 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff888057435a24 R14: ffff8880574359b0 R15: ffffc900032ff6c0 __unix_dgram_recvmsg+0x3c1/0x1260 net/unix/af_unix.c:2304 ____sys_recvmsg+0x286/0x530 ___sys_recvmsg+0x1ec/0x690 net/socket.c:2697 do_recvmmsg+0x36f/0x8f0 net/socket.c:2791 __sys_recvmmsg net/socket.c:2870 [inline] __do_sys_recvmmsg net/socket.c:2893 [inline] __se_sys_recvmmsg net/socket.c:2886 [inline] __x64_sys_recvmmsg+0x195/0x240 net/socket.c:2886 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f93d9b15819 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:00007f93d796c038 EFLAGS: 00000246 ORIG_RAX: 000000000000012b RAX: ffffffffffffffda RBX: 00007f93d9ccd080 RCX: 00007f93d9b15819 RDX: 0000000000010106 RSI: 00000000200000c0 RDI: 0000000000000003 RBP: 00007f93d9b8875e R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f93d9ccd080 R15: 00007ffccf1fcbb8 ---------------- Code disassembly (best guess): 0: 8b 74 24 04 mov 0x4(%rsp),%esi 4: 83 e6 40 and $0x40,%esi 7: 48 c7 c1 d0 67 44 88 mov $0xffffffff884467d0,%rcx e: 48 0f 45 c8 cmovne %rax,%rcx 12: 48 89 4c 24 50 mov %rcx,0x50(%rsp) 17: 31 ff xor %edi,%edi 19: e8 15 65 38 f9 call 0xf9386533 1e: 48 8d 83 14 04 00 00 lea 0x414(%rbx),%rax 25: 48 89 44 24 48 mov %rax,0x48(%rsp) * 2a: 48 8d 83 16 04 00 00 lea 0x416(%rbx),%rax <-- trapping instruction 31: 48 89 44 24 18 mov %rax,0x18(%rsp) 36: 49 8d 46 08 lea 0x8(%r14),%rax 3a: 48 89 44 24 58 mov %rax,0x58(%rsp) 3f: 49 rex.WB