watchdog: BUG: soft lockup - CPU#1 stuck for 23s! [syz-executor.6:5851] Modules linked in: irq event stamp: 3489503 hardirqs last enabled at (3489502): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (3489503): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (3451044): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (3451047): [] __irq_exit_rcu+0xc4/0x100 CPU: 1 UID: 0 PID: 5851 Comm: syz-executor.6 Not tainted 6.13.0-rc1-next-20241206 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0x4a8/0x2490 Code: 00 fc ff df 48 8d 41 05 48 89 c6 48 c1 ee 03 0f b6 14 16 48 89 c6 83 e6 07 40 38 f2 7f 08 84 d2 0f 85 16 17 00 00 0f b6 51 05 <83> e2 07 0f 84 51 fe ff ff 80 fa 01 0f 84 70 fe ff ff 4c 8d 41 04 RSP: 0018:ffff88806cf09018 EFLAGS: 00000246 RAX: ffffffff86862af5 RBX: 0000000000000001 RCX: ffffffff86862af0 RDX: 0000000000000002 RSI: 0000000000000005 RDI: ffffffff864dfa64 RBP: ffff88806cf090e0 R08: ffffffff86862af0 R09: ffff88806cf090c8 R10: 000000000003a7a3 R11: 0000000000029dac R12: ffff88806cf090e8 R13: ffff88806cf090d0 R14: ffff88806cf090c9 R15: ffff88806cf09088 FS: 00007fdb357c2700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f67c26f1e40 CR3: 000000001a004000 CR4: 0000000000350ef0 Call Trace: arch_stack_walk+0x87/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 kasan_save_free_info+0x3a/0x60 __kasan_slab_free+0x38/0x50 kfree+0x132/0x480 ieee80211_inform_bss+0x7f6/0x10b0 cfg80211_inform_single_bss_data+0x7fe/0x1c70 cfg80211_inform_bss_data+0x20f/0x3510 cfg80211_inform_bss_frame_data+0x250/0x6a0 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:put_cpu_partial+0x10a/0x1b0 Code: 24 28 75 5b 49 c7 44 24 28 00 00 00 00 4c 89 e7 48 8d 35 00 00 00 00 e8 f4 a9 ab ff 4d 85 ed 74 06 e8 da 71 d5 ff fb 4d 85 f6 <74> 1c 5b 4c 89 f6 48 89 ef 5d 41 5c 41 5d 41 5e e9 c1 fa ff ff 44 RSP: 0018:ffff88803f6af1e0 EFLAGS: 00000246 RAX: 000000000030d9fd RBX: ffffea0000fadd00 RCX: 1ffffffff0fdfcae RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81a47976 RBP: ffff8880096a0500 R08: 0000000000000001 R09: fffffbfff0fddbe9 R10: ffffffff87eedf4f R11: 0000000000000000 R12: ffff88806cf43530 R13: 0000000000000200 R14: 0000000000000000 R15: ffff88803eb77300 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 jbd2__journal_start+0x193/0x6b0 __ext4_journal_start_sb+0x331/0x600 ext4_iomap_begin+0x483/0x710 iomap_iter+0x46d/0xf70 __iomap_dio_rw+0x6d5/0x1cf0 iomap_dio_rw+0x40/0xa0 ext4_file_write_iter+0x110a/0x18e0 iter_file_splice_write+0xa09/0x1060 direct_splice_actor+0x192/0x7a0 splice_direct_to_actor+0x348/0x9d0 do_splice_direct+0x17a/0x250 do_sendfile+0xa7e/0xdb0 __x64_sys_sendfile64+0x1d5/0x210 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fdb3824cb19 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:00007fdb357c2188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fdb3835ff60 RCX: 00007fdb3824cb19 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000005 RBP: 00007fdb382a6f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000100000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffe49ac54f R14: 00007fdb357c2300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0x1e/0x30 Bluetooth: hci1: command 0x0406 tx timeout Bluetooth: hci7: command 0x0406 tx timeout Bluetooth: hci3: command 0x0406 tx timeout Bluetooth: hci5: command 0x0406 tx timeout ---------------- Code disassembly (best guess), 3 bytes skipped: 0: df 48 8d fisttps -0x73(%rax) 3: 41 05 48 89 c6 48 rex.B add $0x48c68948,%eax 9: c1 ee 03 shr $0x3,%esi c: 0f b6 14 16 movzbl (%rsi,%rdx,1),%edx 10: 48 89 c6 mov %rax,%rsi 13: 83 e6 07 and $0x7,%esi 16: 40 38 f2 cmp %sil,%dl 19: 7f 08 jg 0x23 1b: 84 d2 test %dl,%dl 1d: 0f 85 16 17 00 00 jne 0x1739 23: 0f b6 51 05 movzbl 0x5(%rcx),%edx * 27: 83 e2 07 and $0x7,%edx <-- trapping instruction 2a: 0f 84 51 fe ff ff je 0xfffffe81 30: 80 fa 01 cmp $0x1,%dl 33: 0f 84 70 fe ff ff je 0xfffffea9 39: 4c 8d 41 04 lea 0x4(%rcx),%r8