------------[ cut here ]------------ WARNING: CPU: 1 PID: 5821 at net/mac80211/tx.c:5040 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5040 [inline] WARNING: CPU: 1 PID: 5821 at net/mac80211/tx.c:5040 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5035 [inline] WARNING: CPU: 1 PID: 5821 at net/mac80211/tx.c:5040 __ieee80211_beacon_get+0x14ac/0x16b0 net/mac80211/tx.c:5469 Modules linked in: CPU: 1 UID: 0 PID: 5821 Comm: sshd Not tainted 6.13.0-rc2-syzkaller-00159-gf932fb9b4074 #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_update_cntdwn net/mac80211/tx.c:5035 [inline] RIP: 0010:__ieee80211_beacon_get+0x14ac/0x16b0 net/mac80211/tx.c:5469 Code: 00 89 df 44 89 e6 e8 d3 bc ee f6 44 38 e3 72 a1 e8 a9 bb ee f6 48 89 ef e8 a1 a1 46 f7 31 ed e9 9c fe ff ff e8 95 bb ee f6 90 <0f> 0b 90 e9 86 f6 ff ff 48 89 c6 48 c7 c7 e0 01 2d 90 48 89 04 24 RSP: 0018:ffffc90000a18b70 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8aab3e72 RDX: ffff888028408000 RSI: ffffffff8aab47eb RDI: 0000000000000001 RBP: ffffc90000a18c20 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000002 R12: ffff888033f9c000 R13: 0000000000000041 R14: ffff888031a18d80 R15: ffff888031a1a9d0 FS: 00007fd8202c3d00(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ff54429ff18 CR3: 000000007c610000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <IRQ> ieee80211_beacon_get_tim+0xa7/0x280 net/mac80211/tx.c:5596 ieee80211_beacon_get include/net/mac80211.h:5635 [inline] mac80211_hwsim_beacon_tx+0x4ea/0xa10 drivers/net/wireless/virtual/mac80211_hwsim.c:2311 __iterate_interfaces+0x2e5/0x640 net/mac80211/util.c:758 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 net/mac80211/util.c:794 mac80211_hwsim_beacon+0x105/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2345 __run_hrtimer kernel/time/hrtimer.c:1739 [inline] __hrtimer_run_queues+0x20a/0xae0 kernel/time/hrtimer.c:1803 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1820 handle_softirqs+0x213/0x8f0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [inline] invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0x109/0x170 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+0xa4/0xc0 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:unwind_next_frame+0xdd2/0x20c0 arch/x86/kernel/unwind_orc.c:665 Code: ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e ae 0e 00 00 41 39 5d 00 0f 85 8f 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 8b 14 24 <48> c1 ea 03 80 3c 02 00 0f 85 7a 0e 00 00 49 8d 7d 08 49 8b 5d 38 RSP: 0018:ffffc90004adf458 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffc90004ae0000 RDX: ffffc90004adf500 RSI: ffffc90004adf8a8 RDI: ffffc90004adf508 RBP: 1ffff9200095bf18 R08: ffffc90004adf4fc R09: ffffffff90fef9e4 R10: ffffc90004adf4c8 R11: 000000000000f238 R12: ffffc90004adf518 R13: ffffc90004adf4c8 R14: ffffc90004adf8b8 R15: ffffc90004adf8b0 arch_stack_walk+0x95/0x100 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122 kasan_save_stack+0x33/0x60 mm/kasan/common.c:47 kasan_save_track+0x14/0x30 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:319 [inline] __kasan_slab_alloc+0x89/0x90 mm/kasan/common.c:345 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4104 [inline] slab_alloc_node mm/slub.c:4153 [inline] kmem_cache_alloc_node_noprof+0x223/0x3c0 mm/slub.c:4205 __alloc_skb+0x2b1/0x380 net/core/skbuff.c:668 alloc_skb_fclone include/linux/skbuff.h:1373 [inline] tcp_stream_alloc_skb+0x34/0x570 net/ipv4/tcp.c:886 tcp_sendmsg_locked+0xed5/0x3770 net/ipv4/tcp.c:1168 tcp_sendmsg+0x2e/0x50 net/ipv4/tcp.c:1358 inet_sendmsg+0xb9/0x140 net/ipv4/af_inet.c:851 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg net/socket.c:726 [inline] sock_write_iter+0x4ac/0x5b0 net/socket.c:1147 new_sync_write fs/read_write.c:586 [inline] vfs_write+0x5ae/0x1150 fs/read_write.c:679 ksys_write+0x207/0x250 fs/read_write.c:731 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd81ff16bf2 Code: 89 c7 48 89 44 24 08 e8 7b 34 fa ff 48 8b 44 24 08 48 83 c4 28 c3 c3 64 8b 04 25 18 00 00 00 85 c0 75 20 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 6f 48 8b 15 07 a2 0d 00 f7 d8 64 89 02 48 83 RSP: 002b:00007fff152b2328 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000034 RCX: 00007fd81ff16bf2 RDX: 0000000000000034 RSI: 000055ae40baf9b0 RDI: 0000000000000004 RBP: 000055ae40bbd270 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000055ae3bb61aa4 R13: 000000000000007e R14: 000055ae3bb623e8 R15: 00007fff152b2398 </TASK> ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 03 0f add (%rdi),%ecx 2: b6 04 mov $0x4,%dh 4: 02 84 c0 74 08 3c 03 add 0x33c0874(%rax,%rax,8),%al b: 0f 8e ae 0e 00 00 jle 0xebf 11: 41 39 5d 00 cmp %ebx,0x0(%r13) 15: 0f 85 8f 00 00 00 jne 0xaa 1b: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 22: fc ff df 25: 48 8b 14 24 mov (%rsp),%rdx * 29: 48 c1 ea 03 shr $0x3,%rdx <-- trapping instruction 2d: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 31: 0f 85 7a 0e 00 00 jne 0xeb1 37: 49 8d 7d 08 lea 0x8(%r13),%rdi 3b: 49 8b 5d 38 mov 0x38(%r13),%rbx