------------[ cut here ]------------ WARNING: CPU: 0 PID: 5942 at net/mac80211/tx.c:5040 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5040 [inline] WARNING: CPU: 0 PID: 5942 at net/mac80211/tx.c:5040 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:5035 [inline] WARNING: CPU: 0 PID: 5942 at net/mac80211/tx.c:5040 __ieee80211_beacon_get+0x14ac/0x16b0 net/mac80211/tx.c:5469 Modules linked in: CPU: 0 UID: 0 PID: 5942 Comm: udevd Not tainted 6.14.0-rc5-syzkaller-00023-gbb2281fb05e5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 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 83 f9 e0 f6 44 38 e3 72 a1 e8 99 ff e0 f6 48 89 ef e8 f1 68 39 f7 31 ed e9 9c fe ff ff e8 85 ff e0 f6 90 <0f> 0b 90 e9 86 f6 ff ff 48 89 c6 48 c7 c7 a0 e4 2f 90 48 89 04 24 RSP: 0018:ffffc90000007b70 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff8ad8e8c2 RDX: ffff888078bfa440 RSI: ffffffff8ad8f23b RDI: 0000000000000001 RBP: ffffc90000007c20 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000002 R12: ffff888025a0d000 R13: 0000000000000041 R14: ffff88807a104d80 R15: ffff88807a1069d0 FS: 00007f713113a280(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000040000023a030 CR3: 000000007a5fe000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_beacon_get_tim+0xa7/0x280 net/mac80211/tx.c:5596 ieee80211_beacon_get include/net/mac80211.h:5641 [inline] mac80211_hwsim_beacon_tx+0x4ea/0xa10 drivers/net/wireless/virtual/mac80211_hwsim.c:2311 __iterate_interfaces+0x2e5/0x640 net/mac80211/util.c:760 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 net/mac80211/util.c:796 mac80211_hwsim_beacon+0x105/0x200 drivers/net/wireless/virtual/mac80211_hwsim.c:2345 __run_hrtimer kernel/time/hrtimer.c:1801 [inline] __hrtimer_run_queues+0x20a/0xae0 kernel/time/hrtimer.c:1865 hrtimer_run_softirq+0x17d/0x350 kernel/time/hrtimer.c:1882 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 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:check_kcov_mode kernel/kcov.c:185 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x3b/0x70 kernel/kcov.c:217 Code: 49 7e a9 00 01 ff 00 48 8b 34 24 74 1d f6 c4 01 74 43 a9 00 00 0f 00 75 3c a9 00 00 f0 00 75 35 8b 82 2c 16 00 00 85 c0 74 2b <8b> 82 08 16 00 00 83 f8 02 75 20 48 8b 8a 10 16 00 00 8b 92 0c 16 RSP: 0018:ffffc90003f3fd78 EFLAGS: 00000246 RAX: 0000000080000000 RBX: 000000007aa52000 RCX: ffffffff816ad34c RDX: ffff888078bfa440 RSI: ffffffff816ad356 RDI: 0000000000000007 RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000 R13: ffff88801b042140 R14: ffffc90003f3fe08 R15: ffff88807aa52000 __phys_addr+0xc6/0x150 arch/x86/mm/physaddr.c:31 virt_to_folio include/linux/mm.h:1295 [inline] virt_to_slab mm/slab.h:211 [inline] ___cache_free+0x22/0xe0 mm/slub.c:4667 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4115 [inline] slab_alloc_node mm/slub.c:4164 [inline] kmem_cache_alloc_noprof+0x226/0x3d0 mm/slub.c:4171 getname_flags.part.0+0x4c/0x550 fs/namei.c:139 getname_flags include/linux/audit.h:322 [inline] getname fs/namei.c:223 [inline] __do_sys_unlink fs/namei.c:4637 [inline] __se_sys_unlink fs/namei.c:4635 [inline] __x64_sys_unlink+0xb0/0x110 fs/namei.c:4635 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: 0033:0x7f7130d17da7 Code: f0 ff ff 73 01 c3 48 8b 0d 7e 90 0d 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 57 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 51 90 0d 00 f7 d8 64 89 01 48 RSP: 002b:00007ffeda2ba758 EFLAGS: 00000246 ORIG_RAX: 0000000000000057 RAX: ffffffffffffffda RBX: 00007ffeda2ba768 RCX: 00007f7130d17da7 RDX: 0000000000000000 RSI: 00007ffeda2b9717 RDI: 00007ffeda2ba768 RBP: 0000556fe0120890 R08: 0000000000000000 R09: 00007ffeda2ba0d8 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000000000f3 R13: 0000556fe0122c40 R14: 0000000000000008 R15: 0000556fe00ee2c0 ---------------- Code disassembly (best guess): 0: 49 7e a9 rex.WB jle 0xffffffac 3: 00 01 add %al,(%rcx) 5: ff 00 incl (%rax) 7: 48 8b 34 24 mov (%rsp),%rsi b: 74 1d je 0x2a d: f6 c4 01 test $0x1,%ah 10: 74 43 je 0x55 12: a9 00 00 0f 00 test $0xf0000,%eax 17: 75 3c jne 0x55 19: a9 00 00 f0 00 test $0xf00000,%eax 1e: 75 35 jne 0x55 20: 8b 82 2c 16 00 00 mov 0x162c(%rdx),%eax 26: 85 c0 test %eax,%eax 28: 74 2b je 0x55 * 2a: 8b 82 08 16 00 00 mov 0x1608(%rdx),%eax <-- trapping instruction 30: 83 f8 02 cmp $0x2,%eax 33: 75 20 jne 0x55 35: 48 8b 8a 10 16 00 00 mov 0x1610(%rdx),%rcx 3c: 8b .byte 0x8b 3d: 92 xchg %eax,%edx 3e: 0c 16 or $0x16,%al