watchdog: BUG: soft lockup - CPU#0 stuck for 21s! [syz-executor.5:10939] Modules linked in: irq event stamp: 2818673 hardirqs last enabled at (2818672): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2818673): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2797464): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2797467): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 10939 Comm: syz-executor.5 Not tainted 6.12.0-next-20241126 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__sanitizer_cov_trace_switch+0x57/0x90 Code: 00 00 00 4c 8b 75 00 31 db 4d 85 f6 74 1e 48 8b 74 dd 10 48 8b 4c 24 28 4c 89 e2 4c 89 ef 48 83 c3 01 e8 7c fd ff ff 49 39 de <75> e2 5b 5d 41 5c 41 5d 41 5e e9 0a 43 35 03 41 bd 07 00 00 00 48 RSP: 0018:ffff88806ce09108 EFLAGS: 00000212 RAX: 0000000000000000 RBX: 0000000000000018 RCX: ffffffff8460ee85 RDX: ffff888015d69b80 RSI: 00000000000000bf RDI: 0000000000000001 RBP: ffffffff8529e180 R08: 0000000000000001 R09: ffffed100d9c1240 R10: 0000000000000006 R11: 00000000000c39e5 R12: 0000000000000006 R13: 0000000000000001 R14: 0000000000000020 R15: dffffc0000000000 FS: 00007fab2105d700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020024000 CR3: 000000003dba2000 CR4: 0000000000350ef0 Call Trace: _ieee802_11_parse_elems_full+0x295/0x3ec0 ieee802_11_parse_elems_full+0x979/0x15a0 ieee80211_inform_bss+0xf7/0x10b0 cfg80211_inform_single_bss_data+0x7fe/0x1c50 cfg80211_inform_bss_data+0x20f/0x3510 cfg80211_inform_bss_frame_data+0x250/0x690 ieee80211_bss_info_update+0x2f6/0xa90 ieee80211_scan_rx+0x474/0xac0 ieee80211_rx_list+0x1e38/0x2840 ieee80211_rx_napi+0xdc/0x3b0 ieee80211_handle_queued_frames+0xd9/0x130 tasklet_action_common+0x235/0x3b0 handle_softirqs+0x1b1/0x770 __irq_exit_rcu+0xc4/0x100 irq_exit_rcu+0x9/0x20 sysvec_apic_timer_interrupt+0x70/0x80 asm_sysvec_apic_timer_interrupt+0x1a/0x20 RIP: 0010:__orc_find+0x8f/0xf0 Code: d8 48 c1 e8 03 42 0f b6 14 38 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 50 48 63 03 48 01 d8 48 39 c1 73 b0 4c 8d 63 fc <4c> 39 e5 76 b3 4d 29 ee 49 c1 fe 02 4b 8d 04 76 48 8d 04 46 48 83 RSP: 0018:ffff88803f5e68f0 EFLAGS: 00000287 RAX: ffffffff821557b3 RBX: ffffffff86545290 RCX: ffffffff8215577c RDX: 0000000000000000 RSI: ffffffff868fac14 RDI: ffffffff8654526c RBP: ffffffff8654528c R08: ffffffff868fac14 R09: ffff88803f5e69e8 R10: 000000000003c001 R11: 00000000000435e8 R12: ffffffff8654528c R13: ffffffff8654526c R14: ffffffff86545288 R15: dffffc0000000000 unwind_next_frame+0x2b7/0x2490 arch_stack_walk+0x87/0xf0 stack_trace_save+0x8f/0xc0 set_track_prepare+0x36/0x70 __alloc_object+0xf4/0x270 __create_object+0x1d/0x80 kmem_cache_alloc_noprof+0x300/0x3d0 mempool_alloc_noprof+0x159/0x370 __sg_alloc_table+0x252/0x390 sg_alloc_table_chained+0x9f/0x1f0 scsi_alloc_sgtables+0x1ba/0xbb0 sd_init_command+0x8e1/0x31f0 scsi_queue_rq+0x1cbd/0x3150 blk_mq_dispatch_rq_list+0x3d9/0x1bb0 __blk_mq_sched_dispatch_requests+0xc48/0x13f0 blk_mq_sched_dispatch_requests+0xd7/0x1b0 blk_mq_run_hw_queue+0x3bd/0x640 blk_mq_flush_plug_list+0x623/0x1d30 __blk_flush_plug+0x25d/0x460 blk_finish_plug+0x53/0xa0 ext4_do_writepages+0x20ae/0x30c0 ext4_writepages+0x2f2/0x700 do_writepages+0x1aa/0x810 filemap_fdatawrite_wbc+0x10b/0x150 __filemap_fdatawrite_range+0xb3/0xf0 file_write_and_wait_range+0xcc/0x140 ext4_sync_file+0x276/0xfc0 vfs_fsync_range+0x13d/0x230 ext4_buffered_write_iter+0x2f3/0x3c0 ext4_file_write_iter+0x95e/0x18e0 vfs_write+0xbdb/0x10a0 ksys_write+0x122/0x240 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fab23ae7b19 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:00007fab2105d188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fab23bfaf60 RCX: 00007fab23ae7b19 RDX: 00000000000292e9 RSI: 0000000020000080 RDI: 0000000000000007 RBP: 00007fab23b41f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcecc684ef R14: 00007fab2105d300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0x1e/0x30 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 00 4c 8b 75 add %cl,0x75(%rbx,%rcx,4) 6: 00 31 add %dh,(%rcx) 8: db 4d 85 fisttpl -0x7b(%rbp) b: f6 74 1e 48 divb 0x48(%rsi,%rbx,1) f: 8b 74 dd 10 mov 0x10(%rbp,%rbx,8),%esi 13: 48 8b 4c 24 28 mov 0x28(%rsp),%rcx 18: 4c 89 e2 mov %r12,%rdx 1b: 4c 89 ef mov %r13,%rdi 1e: 48 83 c3 01 add $0x1,%rbx 22: e8 7c fd ff ff callq 0xfffffda3 27: 49 39 de cmp %rbx,%r14 * 2a: 75 e2 jne 0xe <-- trapping instruction 2c: 5b pop %rbx 2d: 5d pop %rbp 2e: 41 5c pop %r12 30: 41 5d pop %r13 32: 41 5e pop %r14 34: e9 0a 43 35 03 jmpq 0x3354343 39: 41 bd 07 00 00 00 mov $0x7,%r13d 3f: 48 rex.W