------------[ cut here ]------------ WARNING: CPU: 1 PID: 4501 at net/mac80211/tx.c:4851 __ieee80211_beacon_update_cntdwn net/mac80211/tx.c:-1 [inline] WARNING: CPU: 1 PID: 4501 at net/mac80211/tx.c:4851 __ieee80211_beacon_get+0x183d/0x2080 net/mac80211/tx.c:5075 Modules linked in: CPU: 1 PID: 4501 Comm: syz-executor Not tainted 5.15.180-syzkaller #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:4851 [inline] RIP: 0010:__ieee80211_beacon_get+0x183d/0x2080 net/mac80211/tx.c:5075 Code: ff e8 87 0f aa f7 0f 0b e9 4b fa ff ff e8 7b 0f aa f7 0f 0b e9 3b fe ff ff e8 6f 0f aa f7 0f 0b e9 06 ee ff ff e8 63 0f aa 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:ffffc90000dd0840 EFLAGS: 00010246 RAX: ffffffff89d632dd RBX: 0000000000000000 RCX: ffff8880270ed940 RDX: 0000000000000100 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90000dd0a70 R08: ffffffff89d62368 R09: ffffffff89d61d3b R10: 0000000000000003 R11: ffff8880270ed940 R12: dffffc0000000000 R13: ffff88805fcecc80 R14: ffff88805fcee298 R15: 1ffff920001ba118 FS: 00005555747ab500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c41c224 CR3: 00000000570d7000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 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:1690 [inline] __hrtimer_run_queues+0x598/0xcf0 kernel/time/hrtimer.c:1754 hrtimer_run_softirq+0x196/0x2c0 kernel/time/hrtimer.c:1771 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:kasan_mem_to_shadow include/linux/kasan.h:56 [inline] RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:128 [inline] RIP: 0010:memory_is_poisoned mm/kasan/generic.c:159 [inline] RIP: 0010:check_region_inline mm/kasan/generic.c:180 [inline] RIP: 0010:kasan_check_range+0x41/0x290 mm/kasan/generic.c:189 Code: 0f 82 59 02 00 00 48 89 fd 48 c1 ed 2f 81 fd ff ff 01 00 0f 82 46 02 00 00 48 89 fb 48 c1 eb 03 49 b8 00 00 00 00 00 fc ff df <4e> 8d 0c 03 4c 8d 54 37 ff 49 c1 ea 03 49 bb 01 00 00 00 00 fc ff RSP: 0018:ffffc9000121f2e0 EFLAGS: 00000a02 RAX: 0000000000000001 RBX: 1ffff92000243e86 RCX: ffffffff813894b8 RDX: 0000000000000001 RSI: 0000000000000010 RDI: ffffc9000121f430 RBP: 000000000001ffff R08: dffffc0000000000 R09: ffffc9000121f4d0 R10: 0000000000000000 R11: dffffc0000000001 R12: 1ffffffff1d03e19 R13: 1ffffffff1d03e19 R14: 0000000000000000 R15: ffffc9000121f3e0 memset+0x1f/0x40 mm/kasan/shadow.c:44 unwind_next_frame+0xbc8/0x1fa0 arch/x86/kernel/unwind_orc.c:547 arch_stack_walk+0x10d/0x140 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x113/0x1c0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:38 [inline] kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] __kasan_slab_alloc+0x8e/0xc0 mm/kasan/common.c:467 kasan_slab_alloc include/linux/kasan.h:254 [inline] slab_post_alloc_hook+0x53/0x380 mm/slab.h:519 slab_alloc_node mm/slub.c:3220 [inline] slab_alloc mm/slub.c:3228 [inline] kmem_cache_alloc+0xf3/0x280 mm/slub.c:3233 anon_vma_chain_alloc mm/rmap.c:138 [inline] anon_vma_clone+0x9d/0x4e0 mm/rmap.c:284 anon_vma_fork+0x8c/0x580 mm/rmap.c:347 dup_mmap kernel/fork.c:574 [inline] dup_mm kernel/fork.c:1466 [inline] copy_mm+0x9f2/0x1370 kernel/fork.c:1518 copy_process+0x1816/0x3ef0 kernel/fork.c:2205 kernel_clone+0x210/0x960 kernel/fork.c:2603 __do_sys_clone kernel/fork.c:2720 [inline] __se_sys_clone kernel/fork.c:2704 [inline] __x64_sys_clone+0x237/0x2a0 kernel/fork.c:2704 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0x80 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7f6624f269d3 Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00 RSP: 002b:00007ffe7189efb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6624f269d3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001 R10: 00005555747ab7d0 R11: 0000000000000246 R12: 0000000000000000 R13: 00000000000927c0 R14: 00000000000946af R15: 00007ffe7189f150 ---------------- Code disassembly (best guess): 0: 0f 82 59 02 00 00 jb 0x25f 6: 48 89 fd mov %rdi,%rbp 9: 48 c1 ed 2f shr $0x2f,%rbp d: 81 fd ff ff 01 00 cmp $0x1ffff,%ebp 13: 0f 82 46 02 00 00 jb 0x25f 19: 48 89 fb mov %rdi,%rbx 1c: 48 c1 eb 03 shr $0x3,%rbx 20: 49 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%r8 27: fc ff df * 2a: 4e 8d 0c 03 lea (%rbx,%r8,1),%r9 <-- trapping instruction 2e: 4c 8d 54 37 ff lea -0x1(%rdi,%rsi,1),%r10 33: 49 c1 ea 03 shr $0x3,%r10 37: 49 rex.WB 38: bb 01 00 00 00 mov $0x1,%ebx 3d: 00 fc add %bh,%ah 3f: ff .byte 0xff