watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.1:9520] Modules linked in: irq event stamp: 2112391 hardirqs last enabled at (2112390): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2112391): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2096794): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2096797): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 9520 Comm: syz-executor.1 Not tainted 6.12.0-rc7-next-20241115 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:srso_safe_ret+0x0/0x20 Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc 48 b8 <48> 8d 64 24 08 c3 cc cc 0f ae e8 e8 f0 ff ff ff 0f 0b 66 66 2e 0f RSP: 0018:ffff88806ce092d0 EFLAGS: 00000292 RAX: 0000000000000001 RBX: ffffffff818f22dd RCX: 0000000000000001 RDX: 1ffff1100d9c126c RSI: ffff88806ce094d8 RDI: ffffffff818f22dd RBP: ffff88806ce09360 R08: 0000000000000001 R09: ffff88806ce09348 R10: 000000000003c001 R11: 0000000000024e86 R12: ffff88806ce093d0 R13: 0000000000000000 R14: ffff88800be10000 R15: ffffffff8435e281 FS: 00007f122d74e700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f72a000 CR3: 000000000f1de000 CR4: 0000000000350ef0 Call Trace: srso_return_thunk+0x5/0x5f __kernel_text_address+0xd/0x40 unwind_get_return_address+0x59/0xa0 arch_stack_walk+0x9d/0xf0 stack_trace_save+0x8f/0xc0 set_track_prepare+0x36/0x70 __alloc_object+0xf4/0x270 __create_object+0x1d/0x80 __kmalloc_noprof+0x37e/0x4b0 cfg80211_inform_single_bss_data+0x4f1/0x1c50 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 14 9a ab ff 4d 85 ed 74 06 e8 8a 62 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:ffff888041acea50 EFLAGS: 00000246 RAX: 00000000001f8da5 RBX: ffffea0000391140 RCX: 1ffffffff0fdfeb6 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81849d96 RBP: ffff888008c4f780 R08: 0000000000000001 R09: fffffbfff0fdddf1 R10: ffffffff87eeef8f R11: 00000000000007e0 R12: ffff88806ce40350 R13: 0000000000000200 R14: 0000000000000000 R15: ffff88800e445378 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 jbd2_journal_add_journal_head+0x367/0x5d0 jbd2_journal_get_create_access+0x44/0x560 __ext4_journal_get_create_access+0x54/0x200 ext4_ext_insert_extent+0x11d0/0x4270 ext4_split_extent_at+0x410/0xfa0 ext4_split_extent+0x202/0x640 ext4_split_convert_extents+0x2da/0x370 ext4_ext_map_blocks+0x2e2d/0x5ac0 ext4_map_blocks+0x3f1/0x1500 ext4_iomap_begin+0x3aa/0x710 iomap_iter+0x441/0x10e0 __iomap_dio_rw+0x6d8/0x1cf0 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+0xaf4/0xe60 __x64_sys_sendfile64+0x1d5/0x210 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f12301d8b19 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:00007f122d74e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f12302ebf60 RCX: 00007f12301d8b19 RDX: 0000000000000000 RSI: 0000000000000003 RDI: 0000000000000003 RBP: 00007f1230232f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000100000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffce169654f R14: 00007f122d74e300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle+0x1e/0x30 syz-executor.1 (9520) used greatest stack depth: 23728 bytes left ---------------- Code disassembly (best guess): 0: 24 28 and $0x28,%al 2: 75 5b jne 0x5f 4: 49 c7 44 24 28 00 00 movq $0x0,0x28(%r12) b: 00 00 d: 4c 89 e7 mov %r12,%rdi 10: 48 8d 35 00 00 00 00 lea 0x0(%rip),%rsi # 0x17 17: e8 14 9a ab ff callq 0xffab9a30 1c: 4d 85 ed test %r13,%r13 1f: 74 06 je 0x27 21: e8 8a 62 d5 ff callq 0xffd562b0 26: fb sti 27: 4d 85 f6 test %r14,%r14 * 2a: 74 1c je 0x48 <-- trapping instruction 2c: 5b pop %rbx 2d: 4c 89 f6 mov %r14,%rsi 30: 48 89 ef mov %rbp,%rdi 33: 5d pop %rbp 34: 41 5c pop %r12 36: 41 5d pop %r13 38: 41 5e pop %r14 3a: e9 c1 fa ff ff jmpq 0xfffffb00 3f: 44 rex.R