watchdog: BUG: soft lockup - CPU#1 stuck for 26s! [syz-executor.2:24306] Modules linked in: irq event stamp: 5300483 hardirqs last enabled at (5300482): [] asm_sysvec_apic_timer_interrupt+0x1a/0x20 hardirqs last disabled at (5300483): [] sysvec_apic_timer_interrupt+0xf/0x90 softirqs last enabled at (5289214): [] __irq_exit_rcu+0xcc/0x110 softirqs last disabled at (5289217): [] __irq_exit_rcu+0xcc/0x110 CPU: 1 PID: 24306 Comm: syz-executor.2 Not tainted 6.2.0-next-20230221 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x392/0x22d0 Code: 00 00 84 c0 0f 84 69 05 00 00 48 c7 c1 c0 6a 4c 85 48 b8 00 00 00 00 00 fc ff df 4c 8d 41 04 4c 89 c2 48 c1 ea 03 0f b6 04 02 <4c> 89 c2 83 e2 07 38 d0 7f 08 84 c0 0f 85 a6 16 00 00 f6 41 04 0f RSP: 0018:ffff88806cf096c8 EFLAGS: 00000213 RAX: 0000000000000000 RBX: ffffffff835fdd4b RCX: ffffffff86393f7a RDX: 1ffffffff0c727ef RSI: ffffffff86393f7a RDI: ffffffff85f885b4 RBP: ffff88806cf09790 R08: ffffffff86393f7e R09: ffff88806cf09778 R10: 0000000000038001 R11: 0000000000000000 R12: ffff88806cf09798 R13: ffff88806cf09738 R14: ffff88806cf09779 R15: 0000000000000002 FS: 00007ff2dfdd9700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f72f000 CR3: 0000000042ef8000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: arch_stack_walk+0x87/0xf0 stack_trace_save+0x90/0xd0 kasan_save_stack+0x22/0x50 kasan_set_track+0x25/0x30 __kasan_slab_alloc+0x59/0x70 kmem_cache_alloc_node+0x187/0x330 __alloc_skb+0x28c/0x330 __netdev_alloc_skb+0x72/0x370 __ieee80211_beacon_get+0x3d9/0x13c0 ieee80211_beacon_get_tim+0x99/0x540 mac80211_hwsim_beacon_tx+0x1d3/0xb10 __iterate_interfaces+0x2d3/0x580 ieee80211_iterate_active_interfaces_atomic+0x73/0x1c0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x54b/0xcb0 hrtimer_run_softirq+0x14c/0x310 __do_softirq+0x258/0x8a2 __irq_exit_rcu+0xcc/0x110 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x6e/0x90 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:filter_irq_stacks+0x61/0x90 Code: 48 3d 10 16 60 84 73 14 44 8d 63 01 48 83 c4 08 44 89 e0 5b 5d 41 5c e9 31 c3 0f 03 48 3d c0 00 4a 84 72 08 48 3d 72 09 4a 84 <72> dc 83 c3 01 48 83 c7 08 41 39 dc 75 b0 48 83 c4 08 44 89 e0 5b RSP: 0018:ffff8880405179f0 EFLAGS: 00000206 RAX: ffffffff846000ae RBX: 0000000000000007 RCX: 0000000000000000 RDX: 0000000000000800 RSI: 0000000000000008 RDI: ffff888040517ab8 RBP: dffffc0000000000 R08: 0000000000000001 R09: ffff888009b0bed8 R10: fffffbfff0ba4eea R11: 0000000000000001 R12: 0000000000000008 R13: 0000000000000800 R14: ffff888040517a80 R15: ffff88800ec22c00 __stack_depot_save+0x39/0x460 kasan_save_stack+0x32/0x50 __kasan_record_aux_stack+0x95/0xb0 __call_rcu_common.constprop.0+0x6a/0xa70 __kmem_cache_free+0x8b/0x2f0 find_get_pmu_context+0x3b7/0x960 __do_sys_perf_event_open+0x143b/0x2a60 do_syscall_64+0x3f/0x90 entry_SYSCALL_64_after_hwframe+0x72/0xdc RIP: 0033:0x7ff2e2863b19 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff2dfdd9188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007ff2e2976f60 RCX: 00007ff2e2863b19 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 0000000020000080 RBP: 00007ff2e28bdf6d R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe086efbef R14: 00007ff2dfdd9300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 874 Comm: kworker/u4:8 Not tainted 6.2.0-next-20230221 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Workqueue: phy9 ieee80211_iface_work RIP: 0010:__sanitizer_cov_trace_pc+0xb/0x70 Code: c0 e9 cd 9b fe 02 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 65 8b 05 6d 15 b8 7e <89> c1 48 8b 34 24 81 e1 00 01 00 00 65 48 8b 14 25 80 89 03 00 a9 RSP: 0018:ffff888036def5a0 EFLAGS: 00000286 RAX: 0000000080000000 RBX: 0000000000000000 RCX: ffffffff812cb0bf RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8118ed81 RBP: 0000000000000003 R08: 0000000000000001 R09: ffffffff8777c98f R10: fffffbfff0eef931 R11: 0000000000000001 R12: ffff88800f5dc800 R13: ffff888036def6d0 R14: ffff88800e1a0000 R15: ffff88800e1a3638 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fc3b8275b58 CR3: 0000000016052000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: cfg80211_bss_update+0x279/0x20d0 cfg80211_inform_single_bss_frame_data+0x70e/0xf20 cfg80211_inform_bss_frame_data+0xc3/0xcb0 ieee80211_bss_info_update+0x34f/0xb40 ieee80211_ibss_rx_queued_mgmt+0x1883/0x2d50 ieee80211_iface_work+0x9cb/0xcc0 process_one_work+0xa0f/0x1790 worker_thread+0x63b/0x1260 kthread+0x2e9/0x3a0 ret_from_fork+0x2c/0x50 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 84 c0 test %al,%al 4: 0f 84 69 05 00 00 je 0x573 a: 48 c7 c1 c0 6a 4c 85 mov $0xffffffff854c6ac0,%rcx 11: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 18: fc ff df 1b: 4c 8d 41 04 lea 0x4(%rcx),%r8 1f: 4c 89 c2 mov %r8,%rdx 22: 48 c1 ea 03 shr $0x3,%rdx 26: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax * 2a: 4c 89 c2 mov %r8,%rdx <-- trapping instruction 2d: 83 e2 07 and $0x7,%edx 30: 38 d0 cmp %dl,%al 32: 7f 08 jg 0x3c 34: 84 c0 test %al,%al 36: 0f 85 a6 16 00 00 jne 0x16e2 3c: f6 41 04 0f testb $0xf,0x4(%rcx)