watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.2:21872] Modules linked in: irq event stamp: 1859785 hardirqs last enabled at (1859784): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (1859785): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (1855086): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (1855089): [] __irq_exit_rcu+0xc4/0x100 CPU: 1 UID: 0 PID: 21872 Comm: syz-executor.2 Not tainted 6.12.0-next-20241122 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:unwind_next_frame+0xa78/0x2490 Code: 89 4c 24 18 48 89 74 24 10 e8 c4 f3 ff ff 4d 8d 4f 40 84 c0 0f 84 9e f8 ff ff 48 8b 74 24 10 48 89 f7 e8 ab eb ff ff 48 89 ef <48> 8b 74 24 10 48 ba 00 00 00 00 00 fc ff df 48 c1 ef 03 48 8b 4c RSP: 0018:ffff88806cf08d68 EFLAGS: 00000202 RAX: ffffffff845ab7ec RBX: 0000000000000002 RCX: 0000000000000002 RDX: ffff88806cf09e01 RSI: ffff88806cf09e40 RDI: ffff88806cf08e30 RBP: ffff88806cf08e30 R08: ffffffff86bbdfd8 R09: ffff88806cf08e18 R10: 000000000003c001 R11: 00000000000b95b2 R12: ffff88806cf08e38 R13: ffff88806cf08e20 R14: ffff88806cf09e48 R15: ffff88806cf08dd8 FS: 00007fc85f47b700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd8c5e89004 CR3: 000000002ed7e000 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_slab_alloc+0x59/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 __alloc_object+0x2f/0x270 __create_object+0x1d/0x80 __kmalloc_noprof+0x37e/0x4b0 ieee802_11_parse_elems_full+0xec/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: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 e4 92 ab ff 4d 85 ed 74 06 e8 6a 5f 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:ffff88802eeceea0 EFLAGS: 00000246 RAX: 00000000001bf379 RBX: ffffea000059e200 RCX: 1ffffffff0fdfecf RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8184a5e6 RBP: ffff888008c42140 R08: 0000000000000001 R09: fffffbfff0fdddf1 R10: ffffffff87eeef8f R11: 00000000000007e0 R12: ffff88806cf3f680 R13: 0000000000000200 R14: 0000000000000000 R15: ffff88801678a000 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_kmalloc+0x6f/0x90 __kmalloc_noprof+0x1f7/0x4b0 kmalloc_array_noprof+0x42/0x70 ext4_find_extent+0x6fe/0x9b0 ext4_ext_map_blocks+0x1cc/0x5ac0 ext4_map_blocks+0x3f1/0x1500 ext4_do_writepages+0x1ade/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: 0033:0x7fc861f05b19 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:00007fc85f47b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007fc862018f60 RCX: 00007fc861f05b19 RDX: 00000000000292e9 RSI: 0000000020000080 RDI: 0000000000000008 RBP: 00007fc861f5ff6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd40eea7cf R14: 00007fc85f47b300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 393 Comm: kworker/u9:4 Not tainted 6.12.0-next-20241122 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 Workqueue: events_unbound cfg80211_wiphy_work RIP: 0010:unwind_next_frame+0x2ba/0x2490 Code: 8d bc 3f a8 5d 76 86 48 81 ff 14 c0 c2 86 0f 87 a6 13 00 00 44 29 da 48 8d 3c 85 60 71 43 86 4c 89 c6 e8 89 f3 ff ff 48 89 c1 c2 03 00 00 80 3d e7 2f 28 05 00 4d 8d 4f 40 75 3a 48 89 ea c6 RSP: 0018:ffff888016c3eb98 EFLAGS: 00000286 RAX: ffffffff8678c15a RBX: 0000000000000001 RCX: ffffffff8678c15a RDX: 0000000000000000 RSI: ffffffff8678c15a RDI: ffffffff8645092c RBP: ffff888016c3ecb0 R08: ffffffff8678c15a R09: 0000000000000000 R10: 000000000003c001 R11: 00000000000065f3 R12: ffff888016c3ecb8 R13: ffff888016c3eca0 R14: ffff888016c3ec99 R15: ffff888016c3ec58 FS: 0000000000000000(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055556d3e3c58 CR3: 0000000007326000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: __unwind_start+0x517/0x7c0 arch_stack_walk+0x63/0xf0 stack_trace_save+0x8f/0xc0 kasan_save_stack+0x24/0x50 kasan_save_track+0x14/0x30 __kasan_kmalloc+0x7f/0x90 __kmalloc_noprof+0x1f7/0x4b0 ieee802_11_parse_elems_full+0xec/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_ibss_rx_queued_mgmt+0x18ba/0x2f90 ieee80211_iface_work+0xb5f/0xe40 cfg80211_wiphy_work+0x38d/0x610 process_one_work+0x8ee/0x1a00 worker_thread+0x674/0xe70 kthread+0x2c2/0x3a0 ret_from_fork+0x48/0x80 ret_from_fork_asm+0x1a/0x30 ---------------- Code disassembly (best guess): 0: 89 4c 24 18 mov %ecx,0x18(%rsp) 4: 48 89 74 24 10 mov %rsi,0x10(%rsp) 9: e8 c4 f3 ff ff callq 0xfffff3d2 e: 4d 8d 4f 40 lea 0x40(%r15),%r9 12: 84 c0 test %al,%al 14: 0f 84 9e f8 ff ff je 0xfffff8b8 1a: 48 8b 74 24 10 mov 0x10(%rsp),%rsi 1f: 48 89 f7 mov %rsi,%rdi 22: e8 ab eb ff ff callq 0xffffebd2 27: 48 89 ef mov %rbp,%rdi * 2a: 48 8b 74 24 10 mov 0x10(%rsp),%rsi <-- trapping instruction 2f: 48 ba 00 00 00 00 00 movabs $0xdffffc0000000000,%rdx 36: fc ff df 39: 48 c1 ef 03 shr $0x3,%rdi 3d: 48 rex.W 3e: 8b .byte 0x8b 3f: 4c rex.WR