device batadv1008 entered promiscuous mode 8021q: adding VLAN 0 to HW filter on device batadv1008 bond996: making interface vlan840 the new active one bond996: Enslaving vlan840 as an active interface with an up link watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.4:13163] Modules linked in: irq event stamp: 2816855 hardirqs last enabled at (2816854): [] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline] hardirqs last enabled at (2816854): [] _raw_spin_unlock_irq+0x24/0x80 kernel/locking/spinlock.c:192 hardirqs last disabled at (2816855): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (5270): [] __mark_inode_dirty+0xd06/0x1140 fs/fs-writeback.c:2251 softirqs last disabled at (5813): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (5813): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 1 PID: 13163 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline] RIP: 0010:_raw_spin_unlock_irq+0x50/0x80 kernel/locking/spinlock.c:192 Code: c0 98 82 f1 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 31 48 83 3d 01 31 d8 01 00 74 25 fb 66 0f 1f 44 00 00 01 00 00 00 e8 26 1b 28 f9 65 8b 05 9f 8d e8 77 85 c0 74 02 5d RSP: 0018:ffff8880ba107de0 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3053 RBX: dffffc0000000000 RCX: 1ffff11011de619f RDX: dffffc0000000000 RSI: ffff88808ef30cd8 RDI: ffff88808ef30c84 RBP: ffff8880ba122b40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff868939f0 R13: ffff8880ba122b40 R14: ffff8880ba107e78 R15: 0000000000000000 FS: 00007fa109d42700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2dd26000 CR3: 0000000023bfe000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: expire_timers+0x238/0x4e0 kernel/time/timer.c:1374 __run_timers kernel/time/timer.c:1696 [inline] run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:__find_get_block+0x0/0xde0 fs/buffer.c:1290 Code: 0f ff ff ff 48 89 04 24 e8 bd f0 e7 ff 48 8b 04 24 e9 de fe ff ff 48 89 df e8 dc ed e7 ff e9 8b fe ff ff 0f 1f 80 00 00 00 00 <41> 57 41 56 41 55 49 89 f5 41 54 55 53 48 83 ec 30 89 54 24 08 48 RSP: 0018:ffff88822633f890 EFLAGS: 00000216 ORIG_RAX: ffffffffffffff13 RAX: 0000000000040000 RBX: 0000000000000001 RCX: ffffc90008954000 RDX: 0000000000000800 RSI: 0000000000000005 RDI: ffff888090377900 RBP: ffff888090377900 R08: 0000000000000000 R09: 0000000000000001 R10: 0000000000000007 R11: 00000000c1335344 R12: ffff88822adbee18 R13: 0000000000000005 R14: 0000000000000800 R15: 0000000000000008 __getblk_gfp fs/buffer.c:1317 [inline] __bread_gfp+0x29/0x300 fs/buffer.c:1366 sb_bread include/linux/buffer_head.h:309 [inline] fat__get_entry+0x4f9/0x8e0 fs/fat/dir.c:101 fat_get_entry fs/fat/dir.c:129 [inline] fat_search_long+0x232/0xdc0 fs/fat/dir.c:477 vfat_find fs/fat/namei_vfat.c:697 [inline] vfat_lookup+0x2d4/0x610 fs/fat/namei_vfat.c:711 __lookup_hash+0x117/0x180 fs/namei.c:1547 do_renameat2+0x6a2/0xc70 fs/namei.c:4581 __do_sys_renameat2 fs/namei.c:4664 [inline] __se_sys_renameat2 fs/namei.c:4661 [inline] __x64_sys_renameat2+0xba/0x150 fs/namei.c:4661 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fa10b7d00d9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa109d42168 EFLAGS: 00000246 ORIG_RAX: 000000000000013c RAX: ffffffffffffffda RBX: 00007fa10b8eff80 RCX: 00007fa10b7d00d9 RDX: ffffffffffffff9c RSI: 0000000020000500 RDI: 0000000000000006 RBP: 00007fa10b82bae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000020000480 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff5ffc423f R14: 00007fa109d42300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 6609 Comm: kworker/u4:5 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: bat_events batadv_purge_orig RIP: 0010:queued_spin_lock include/asm-generic/qspinlock.h:86 [inline] RIP: 0010:do_raw_spin_lock+0xd7/0x220 kernel/locking/spinlock_debug.c:113 Code: 55 08 65 8b 05 8a a2 b5 7e 39 c2 0f 84 84 00 00 00 be 04 00 00 00 48 89 ef e8 35 70 4c 00 31 c0 ba 01 00 00 00 f0 0f b1 55 00 <85> c0 75 7b 65 8b 1d 5e a2 b5 7e 48 b8 00 00 00 00 00 fc ff df 4c RSP: 0018:ffff88822bc1fbf8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff8880189eea98 RCX: ffffffff814bdebb RDX: 0000000000000001 RSI: 0000000000000004 RDI: ffff8880189eea98 RBP: ffff8880189eea98 R08: 0000000000000001 R09: ffffed100313dd53 R10: ffff8880189eea9b R11: 0000000000000000 R12: ffff8880189eeaa0 R13: ffff8880189eeaa8 R14: dffffc0000000000 R15: 00000000000003a5 FS: 0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe234f1c8c CR3: 00000000ab770000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: spin_lock_bh include/linux/spinlock.h:334 [inline] batadv_purge_orig_ref+0x16d/0x1110 net/batman-adv/originator.c:1363 batadv_purge_orig+0x17/0x60 net/batman-adv/originator.c:1392 process_one_work+0x864/0x1570 kernel/workqueue.c:2153 worker_thread+0x64c/0x1130 kernel/workqueue.c:2296 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415