watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [syz-executor.6:5234] Modules linked in: irq event stamp: 2186655 hardirqs last enabled at (2186654): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2186655): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2173156): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2173169): [] __irq_exit_rcu+0xc4/0x100 CPU: 0 UID: 0 PID: 5234 Comm: syz-executor.6 Not tainted 6.12.0-next-20241127 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:__is_insn_slot_addr+0x50/0x290 Code: 00 48 8d 05 00 00 00 00 50 31 d2 31 f6 48 c7 c7 40 61 c1 85 e8 61 c0 dd ff e8 5c 72 32 03 31 ff 89 c5 89 c6 e8 51 84 ff ff 58 <85> ed 0f 85 f8 00 00 00 e8 13 81 ff ff 4c 8d b3 a8 00 00 00 48 b8 RSP: 0018:ffff88806ce09038 EFLAGS: 00000246 RAX: ffffffff81527e1e RBX: ffffffff85c6dbc0 RCX: ffffffff81527e3f RDX: ffff888009a49b80 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 0000000000000001 R08: 0000000000000000 R09: fffffbfff0fdddec R10: 0000000000000001 R11: 00000000000c3a14 R12: 00007f5117f52b19 R13: 0000000000000000 R14: ffff888009a49b80 R15: ffff88806ce096a8 FS: 00007f51154c8700(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8273e78344 CR3: 0000000018bd6000 CR4: 0000000000350ef0 Call Trace: 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_record_aux_stack+0x8c/0xa0 kvfree_call_rcu+0x29/0x980 cfg80211_update_known_bss+0x3c9/0x11e0 __cfg80211_bss_update+0xe0/0x1fe0 cfg80211_inform_single_bss_data+0x6e2/0x1c70 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:qlist_free_all+0x96/0x160 Code: 0f 82 e0 00 00 00 48 c7 c2 00 00 00 80 48 2b 15 f0 d1 f1 03 48 01 ca 48 c1 ea 0c 48 c1 e2 06 48 03 15 ce d1 f1 03 48 8b 72 08 <48> 89 d1 40 f6 c6 01 0f 85 a1 00 00 00 66 90 80 79 33 f5 ba 00 00 RSP: 0018:ffff88803e2677b0 EFLAGS: 00000286 RAX: ffff88800d74f000 RBX: ffff88800d74f000 RCX: ffff88808d74f000 RDX: ffffea000035d3c0 RSI: ffff888008c4f780 RDI: 0000000000080000 RBP: 0000000000000000 R08: ffff8880159f05c8 R09: 00000000000d0009 R10: ffffea0000567c00 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88803e2677e8 R14: ffff8880159f05c8 R15: ffff8880159f05c8 kasan_quarantine_reduce+0x19f/0x240 __kasan_slab_alloc+0x49/0x70 kmem_cache_alloc_noprof+0x13d/0x3d0 ext4_inode_attach_jinode+0x118/0x230 ext4_file_open+0x347/0xd40 do_dentry_open+0x71c/0x1420 vfs_open+0x82/0x3f0 path_openat+0x1cf3/0x2980 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: 0033:0x7f5117f52b19 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:00007f51154c8188 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007f5118065f60 RCX: 00007f5117f52b19 RDX: 00000000001010c2 RSI: 0000000020000000 RDI: ffffffffffffff9c RBP: 00007f5117facf6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffda3d6717f R14: 00007f51154c8300 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 48 8d add %cl,-0x73(%rax) 3: 05 00 00 00 00 add $0x0,%eax 8: 50 push %rax 9: 31 d2 xor %edx,%edx b: 31 f6 xor %esi,%esi d: 48 c7 c7 40 61 c1 85 mov $0xffffffff85c16140,%rdi 14: e8 61 c0 dd ff callq 0xffddc07a 19: e8 5c 72 32 03 callq 0x332727a 1e: 31 ff xor %edi,%edi 20: 89 c5 mov %eax,%ebp 22: 89 c6 mov %eax,%esi 24: e8 51 84 ff ff callq 0xffff847a 29: 58 pop %rax * 2a: 85 ed test %ebp,%ebp <-- trapping instruction 2c: 0f 85 f8 00 00 00 jne 0x12a 32: e8 13 81 ff ff callq 0xffff814a 37: 4c 8d b3 a8 00 00 00 lea 0xa8(%rbx),%r14 3e: 48 rex.W 3f: b8 .byte 0xb8