------------[ cut here ]------------ WARNING: CPU: 1 PID: 5210 at net/mac80211/tx.c:4961 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4961 [inline] WARNING: CPU: 1 PID: 5210 at net/mac80211/tx.c:4961 __ieee80211_beacon_get+0x1141/0x1520 net/mac80211/tx.c:5362 Modules linked in: CPU: 1 PID: 5210 Comm: modprobe Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:__ieee80211_beacon_update_cntdwn net/mac80211/tx.c:4961 [inline] RIP: 0010:__ieee80211_beacon_get+0x1141/0x1520 net/mac80211/tx.c:5362 Code: f7 4c 89 ef e8 80 75 07 f8 45 31 ed 4c 8b bc 24 a0 00 00 00 e9 7f fe ff ff e8 db d0 ce f7 0f 0b e9 61 f8 ff ff e8 cf d0 ce f7 <0f> 0b e9 85 fb ff ff e8 c3 d0 ce f7 48 c7 c7 a0 fc fb 8d 4c 89 e6 RSP: 0018:ffffc900001e0a48 EFLAGS: 00010246 RAX: ffffffff89b35d51 RBX: dffffc0000000000 RCX: ffff88802d590000 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff88802d590000 R09: 0000000000000003 R10: 0000000000000007 R11: 0000000000000100 R12: ffff88807cf2e228 R13: ffff88805801b824 R14: ffff88807cf2e760 R15: ffff88805801b800 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe47d8444ac CR3: 0000000061b11000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: ieee80211_beacon_get_tim+0x63/0x4e0 net/mac80211/tx.c:5489 ieee80211_beacon_get include/net/mac80211.h:5335 [inline] mac80211_hwsim_beacon_tx+0x21c/0xae0 drivers/net/wireless/mac80211_hwsim.c:2091 __iterate_interfaces+0x225/0x4c0 net/mac80211/util.c:788 ieee80211_iterate_active_interfaces_atomic+0xd7/0x170 net/mac80211/util.c:824 mac80211_hwsim_beacon+0xb7/0x1b0 drivers/net/wireless/mac80211_hwsim.c:2147 __run_hrtimer kernel/time/hrtimer.c:1751 [inline] __hrtimer_run_queues+0x522/0xc90 kernel/time/hrtimer.c:1815 hrtimer_run_softirq+0x173/0x290 kernel/time/hrtimer.c:1832 handle_softirqs+0x291/0x910 kernel/softirq.c:596 __do_softirq kernel/softirq.c:630 [inline] invoke_softirq kernel/softirq.c:470 [inline] __irq_exit_rcu+0x13b/0x230 kernel/softirq.c:679 irq_exit_rcu+0x5/0x20 kernel/softirq.c:691 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1118 [inline] sysvec_apic_timer_interrupt+0xa0/0xc0 arch/x86/kernel/apic/apic.c:1118 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:691 RIP: 0010:check_preemption_disabled+0x18/0x110 lib/smp_processor_id.c:14 Code: cc cc 48 c7 c7 80 5d df 8a 48 c7 c6 c0 5d df 8a eb 00 55 41 57 41 56 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 48 89 44 24 08 <65> 8b 05 91 ec d1 75 65 8b 0d 32 42 d2 75 f7 c1 ff ff ff 7f 74 1f RSP: 0018:ffffc9000c1c7b68 EFLAGS: 00000282 RAX: 673079d8cddb3000 RBX: 0000000000000000 RCX: ffffffff81647b70 RDX: 0000000000000000 RSI: ffffffff8adf5dc0 RDI: ffffffff8adf5d80 RBP: ffffc9000c1c7cd8 R08: ffffffff8e210aef R09: 1ffffffff1c4215d R10: dffffc0000000000 R11: fffffbfff1c4215e R12: 0000000000000000 R13: dffffc0000000000 R14: 0000000000000001 R15: 1ffff92001838f84 rcu_dynticks_curr_cpu_in_eqs include/linux/context_tracking.h:122 [inline] rcu_is_watching+0x11/0xa0 kernel/rcu/tree.c:721 trace_lock_release include/trace/events/lock.h:69 [inline] lock_release+0xcf/0x920 kernel/locking/lockdep.c:5687 might_alloc include/linux/sched/mm.h:271 [inline] slab_pre_alloc_hook+0x2a/0x300 mm/slab.h:710 slab_alloc_node mm/slub.c:3279 [inline] slab_alloc mm/slub.c:3367 [inline] __kmem_cache_alloc_lru mm/slub.c:3374 [inline] kmem_cache_alloc+0x56/0x2f0 mm/slub.c:3383 getname_flags+0xb7/0x500 fs/namei.c:139 do_sys_openat2+0xdd/0x4f0 fs/open.c:1314 do_sys_open fs/open.c:1336 [inline] __do_sys_openat fs/open.c:1352 [inline] __se_sys_openat fs/open.c:1347 [inline] __x64_sys_openat+0x135/0x160 fs/open.c:1347 do_syscall_x64 arch/x86/entry/common.c:46 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fe47dae60ba Code: 41 89 f2 48 89 54 24 e0 41 83 e2 40 75 2a 89 f0 f7 d0 a9 00 00 41 00 74 1f 89 f2 b8 01 01 00 00 48 89 fe bf 9c ff ff ff 0f 05 <48> 3d 00 f0 ff ff 77 2e c3 0f 1f 44 00 00 48 8d 44 24 08 c7 44 24 RSP: 002b:00007ffff4406068 EFLAGS: 00000206 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007ffff44060e0 RCX: 00007fe47dae60ba RDX: 0000000000080000 RSI: 00007ffff44060e0 RDI: 00000000ffffff9c RBP: 00007ffff44060d0 R08: 00007ffff44062d7 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000013 R13: 00007fe47dac2000 R14: 00007ffff44062f0 R15: 0000000000000000 ---------------- Code disassembly (best guess): 0: cc int3 1: cc int3 2: 48 c7 c7 80 5d df 8a mov $0xffffffff8adf5d80,%rdi 9: 48 c7 c6 c0 5d df 8a mov $0xffffffff8adf5dc0,%rsi 10: eb 00 jmp 0x12 12: 55 push %rbp 13: 41 57 push %r15 15: 41 56 push %r14 17: 53 push %rbx 18: 48 83 ec 10 sub $0x10,%rsp 1c: 65 48 8b 04 25 28 00 mov %gs:0x28,%rax 23: 00 00 25: 48 89 44 24 08 mov %rax,0x8(%rsp) * 2a: 65 8b 05 91 ec d1 75 mov %gs:0x75d1ec91(%rip),%eax # 0x75d1ecc2 <-- trapping instruction 31: 65 8b 0d 32 42 d2 75 mov %gs:0x75d24232(%rip),%ecx # 0x75d2426a 38: f7 c1 ff ff ff 7f test $0x7fffffff,%ecx 3e: 74 1f je 0x5f