watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.2:16206] Modules linked in: irq event stamp: 2184427 hardirqs last enabled at (2184426): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2184427): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2169952): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2169955): [] __irq_exit_rcu+0xc4/0x100 CPU: 1 UID: 0 PID: 16206 Comm: syz-executor.2 Not tainted 6.13.0-rc3-next-20241219 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:rcu_is_watching+0x0/0x70 Code: 66 52 00 eb a3 e8 c0 67 52 00 eb e4 48 c7 c7 00 02 a1 85 e8 c2 66 52 00 eb b1 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 53 65 ff 05 ec 58 aa 7e 65 48 8b 1d f4 cb a8 7e 48 8d RSP: 0018:ffff88806cf09570 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffffff85c6e1e0 RCX: ffffffff8172474f RDX: ffff88800a118000 RSI: ffffffff81724855 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000000 R09: fffffbfff0fdfbdc R10: 0000000000000001 R11: 0000000000000003 R12: 00007f1539ef6b19 R13: 0000000000000000 R14: ffff88800a118000 R15: 0000000000092820 FS: 00007f153744b700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31629000 CR3: 0000000039786000 CR4: 0000000000350ef0 Call Trace: __is_insn_slot_addr+0x15a/0x290 kernel_text_address+0x5b/0xc0 __kernel_text_address+0xd/0x40 unwind_get_return_address+0x59/0xa0 arch_stack_walk+0x9d/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 kmem_cache_alloc_node_noprof+0x311/0x3e0 __alloc_skb+0x2ad/0x370 __netdev_alloc_skb+0x7a/0x7c0 __ieee80211_beacon_get+0x3f4/0xfc0 ieee80211_beacon_get_tim+0xa6/0x280 mac80211_hwsim_beacon_tx+0x49b/0x950 __iterate_interfaces+0x2e0/0x650 ieee80211_iterate_active_interfaces_atomic+0x71/0x1b0 mac80211_hwsim_beacon+0x105/0x200 __hrtimer_run_queues+0x1ab/0xa80 hrtimer_run_softirq+0x14c/0x310 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 de ab ff 4d 85 ed 74 06 e8 7a 5d 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:ffff88800ad57940 EFLAGS: 00000282 RAX: 00000000002095a9 RBX: ffffea00005692c0 RCX: 1ffffffff0fe1d0a RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff81a45d06 RBP: ffff888008c4f780 R08: 0000000000000001 R09: fffffbfff0fdfbe1 R10: ffffffff87efdf0f R11: 0000000000000000 R12: ffff88806cf40390 R13: 0000000000000200 R14: ffffea0000250280 R15: ffff888015a4b5c8 qlist_free_all+0x50/0x160 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 security_file_alloc+0x35/0x130 init_file+0x95/0x480 alloc_empty_file+0x94/0x1e0 path_openat+0xe1/0x2990 do_filp_open+0x1e9/0x450 do_sys_openat2+0x164/0x1d0 __x64_sys_openat+0x143/0x200 do_syscall_64+0xbf/0x1d0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1539ef6b19 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:00007f153744b188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f153a00a020 RCX: 00007f1539ef6b19 RDX: 0000000000280c00 RSI: 00000000200001c0 RDI: ffffffffffffff9c RBP: 00007f1539f50f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffde940974f R14: 00007f153744b300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0x1e/0x30 loop3: detected capacity change from 0 to 128 loop3: detected capacity change from 0 to 128 loop3: detected capacity change from 0 to 128 loop3: detected capacity change from 0 to 128 EXT4-fs warning (device sda): ext4_group_extend:1870: need to use ext2online to resize further EXT4-fs warning (device sda): ext4_group_extend:1870: need to use ext2online to resize further EXT4-fs warning (device sda): ext4_group_extend:1870: need to use ext2online to resize further EXT4-fs warning (device sda): ext4_group_extend:1870: need to use ext2online to resize further EXT4-fs warning (device sda): ext4_group_extend:1870: need to use ext2online to resize further EXT4-fs warning (device sda): ext4_group_extend:1870: need to use ext2online to resize further EXT4-fs warning (device sda): ext4_group_extend:1870: need to use ext2online to resize further No source specified No source specified No source specified No source specified loop6: detected capacity change from 0 to 264192 EXT4-fs (loop6): mounting ext2 file system using the ext4 subsystem EXT4-fs (loop6): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop6): group descriptors corrupted! loop6: detected capacity change from 0 to 264192 EXT4-fs (loop6): mounting ext2 file system using the ext4 subsystem EXT4-fs (loop6): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop6): group descriptors corrupted! loop6: detected capacity change from 0 to 264192 EXT4-fs (loop6): mounting ext2 file system using the ext4 subsystem EXT4-fs (loop6): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop6): group descriptors corrupted! loop7: detected capacity change from 0 to 4 EXT4-fs (loop7): invalid first ino: 3260751986 loop6: detected capacity change from 0 to 264192 loop7: detected capacity change from 0 to 4 ---------------- Code disassembly (best guess): 0: 66 52 push %dx 2: 00 eb add %ch,%bl 4: a3 e8 c0 67 52 00 eb movabs %eax,0x48e4eb005267c0e8 b: e4 48 d: c7 c7 00 02 a1 85 mov $0x85a10200,%edi 13: e8 c2 66 52 00 callq 0x5266da 18: eb b1 jmp 0xffffffcb 1a: 90 nop 1b: 90 nop 1c: 90 nop 1d: 90 nop 1e: 90 nop 1f: 90 nop 20: 90 nop 21: 90 nop 22: 90 nop 23: 90 nop 24: 90 nop 25: 90 nop 26: 90 nop 27: 90 nop 28: 90 nop 29: 90 nop * 2a: f3 0f 1e fa endbr64 <-- trapping instruction 2e: 53 push %rbx 2f: 65 ff 05 ec 58 aa 7e incl %gs:0x7eaa58ec(%rip) # 0x7eaa5922 36: 65 48 8b 1d f4 cb a8 mov %gs:0x7ea8cbf4(%rip),%rbx # 0x7ea8cc32 3d: 7e 3e: 48 rex.W 3f: 8d .byte 0x8d