watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.4:10678] Modules linked in: irq event stamp: 2243365 hardirqs last enabled at (2243364): [] irqentry_exit+0x3b/0x90 hardirqs last disabled at (2243365): [] sysvec_apic_timer_interrupt+0xf/0x80 softirqs last enabled at (2241148): [] handle_softirqs+0x50c/0x770 softirqs last disabled at (2241155): [] __irq_exit_rcu+0xc4/0x100 CPU: 1 UID: 0 PID: 10678 Comm: syz-executor.4 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:_ieee802_11_parse_elems_full+0x18b/0x3ec0 Code: 89 de 4d 8d 74 1d 00 e8 d3 e0 f0 fc 48 83 fb 01 0f 8e 7e 04 00 00 e8 64 dd f0 fc 4c 8b 7c 24 20 31 ff 4c 89 fe e8 b5 e0 f0 fc <4d> 85 ff b8 00 00 00 00 49 bf 00 00 00 00 00 fc ff df 48 8d 94 24 RSP: 0018:ffff88806cf09138 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000028 RCX: ffffffff8481037b RDX: ffff88803eb68000 RSI: 0000000000000000 RDI: 0000000000000007 RBP: ffff88806cf094e8 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000003 R12: ffff88806cf094f0 R13: ffff888038d2f91d R14: ffff888038d2f945 R15: 0000000000000000 FS: 00007f7d4f991700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000555594b3bc58 CR3: 0000000014976000 CR4: 0000000000350ef0 Call Trace: ieee802_11_parse_elems_full+0x979/0x15a0 ieee80211_inform_bss+0xf7/0x10b0 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:__sanitizer_cov_trace_cmp8+0x4/0x20 Code: 89 fe bf 04 00 00 00 e9 da fe ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <48> 8b 0c 24 48 89 f2 48 89 fe bf 06 00 00 00 e9 a8 fe ff ff 0f 1f RSP: 0018:ffff88803e96ef60 EFLAGS: 00000212 RAX: 0000000000007a41 RBX: 0000000000000002 RCX: ffffc900013ef000 RDX: 0000000000040000 RSI: 0000000000000800 RDI: 0000000000000000 RBP: 0000000014ef8e60 R08: 0000000000000001 R09: fffffbfff0fddbf4 R10: 0000000000080000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000800 R14: 0000000000000000 R15: ffff88803d565058 __virt_addr_valid+0x13d/0x5d0 kasan_addr_to_slab+0xd/0xa0 kasan_record_aux_stack+0xe/0xa0 __call_rcu_common.constprop.0+0x6a/0xaa0 kmem_cache_free+0x2ae/0x470 jbd2_journal_stop+0x5d3/0xe10 __ext4_journal_stop+0xe2/0x1f0 ext4_do_writepages+0x136c/0x30d0 ext4_writepages+0x2f2/0x700 do_writepages+0x1aa/0x810 filemap_fdatawrite_wbc+0x10b/0x150 __filemap_fdatawrite_range+0xb3/0xf0 filemap_write_and_wait_range+0xa5/0x130 ext4_file_write_iter+0xfda/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: 0033:0x7f7d5241bb19 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:00007f7d4f991188 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f7d5252ef60 RCX: 00007f7d5241bb19 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000004 RBP: 00007f7d52475f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000100000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcab91739f R14: 00007f7d4f991300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 skipped: idling at default_idle+0x1e/0x30 loop2: detected capacity change from 0 to 4 EXT4-fs (loop2): VFS: Found ext4 filesystem with unknown checksum algorithm. loop2: detected capacity change from 0 to 4 EXT4-fs (loop2): VFS: Found ext4 filesystem with unknown checksum algorithm. loop2: detected capacity change from 0 to 4 EXT4-fs (loop2): VFS: Found ext4 filesystem with unknown checksum algorithm. loop2: detected capacity change from 0 to 4 EXT4-fs (loop2): VFS: Found ext4 filesystem with unknown checksum algorithm. loop2: detected capacity change from 0 to 4 EXT4-fs (loop2): VFS: Found ext4 filesystem with unknown checksum algorithm. loop6: detected capacity change from 0 to 5392 loop6: detected capacity change from 0 to 5392 loop6: detected capacity change from 0 to 5392 loop6: detected capacity change from 0 to 5392 netlink: 80 bytes leftover after parsing attributes in process `syz-executor.6'. netlink: 80 bytes leftover after parsing attributes in process `syz-executor.6'. syz-executor.1 (10912) used greatest stack depth: 23576 bytes left netlink: 80 bytes leftover after parsing attributes in process `syz-executor.6'. ---------------- Code disassembly (best guess): 0: 89 de mov %ebx,%esi 2: 4d 8d 74 1d 00 lea 0x0(%r13,%rbx,1),%r14 7: e8 d3 e0 f0 fc callq 0xfcf0e0df c: 48 83 fb 01 cmp $0x1,%rbx 10: 0f 8e 7e 04 00 00 jle 0x494 16: e8 64 dd f0 fc callq 0xfcf0dd7f 1b: 4c 8b 7c 24 20 mov 0x20(%rsp),%r15 20: 31 ff xor %edi,%edi 22: 4c 89 fe mov %r15,%rsi 25: e8 b5 e0 f0 fc callq 0xfcf0e0df * 2a: 4d 85 ff test %r15,%r15 <-- trapping instruction 2d: b8 00 00 00 00 mov $0x0,%eax 32: 49 bf 00 00 00 00 00 movabs $0xdffffc0000000000,%r15 39: fc ff df 3c: 48 rex.W 3d: 8d .byte 0x8d 3e: 94 xchg %eax,%esp 3f: 24 .byte 0x24