FS-Cache: O-key=[16] '020000000000000002 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.4'. watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.0:9257] Modules linked in: irq event stamp: 4575179 hardirqs last enabled at (4575178): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (4575179): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (4558506): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (4558509): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (4558509): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 1 PID: 9257 Comm: syz-executor.0 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:lock_release+0x429/0x8b0 kernel/locking/lockdep.c:3930 Code: 84 08 00 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 0f 85 95 03 00 00 48 83 3d 7b 34 a6 08 00 0f 84 cc 01 00 00 48 8b 3c 24 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 49 c7 04 04 00 00 00 RSP: 0018:ffff8880ba107c78 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3051 RBX: ffff8880564d64c0 RCX: 1ffff1100ac9ada9 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000286 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 1ffff11017420f92 R13: 0000000000000000 R14: ffff8880564d64c0 R15: 0000000000000001 FS: 00007fcd03486700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6794609718 CR3: 0000000209b1f000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: call_timer_fn+0x1de/0x700 kernel/time/timer.c:1341 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375 __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:printk+0xbf/0xed kernel/printk/printk.c:2035 Code: e7 48 89 44 24 28 48 8d 74 24 20 48 8d 84 24 80 00 00 00 c7 44 24 20 08 00 00 00 48 89 44 24 30 e8 eb 46 5a f9 b9 03 00 00 00 <48> 89 df 41 89 c0 31 c0 f3 ab 48 8b 44 24 78 65 48 2b 04 25 28 00 RSP: 0018:ffff8881f943f4f8 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000002 RBX: ffffed103f287e9f RCX: 0000000000000003 RDX: 000000000001d21c RSI: ffffffff814dff01 RDI: 0000000000000006 RBP: ffff8881f943f5b8 R08: 0000000000000000 R09: 0000000000003be3 R10: 0000000000000006 R11: 0000000000000000 R12: ffffffff88787020 R13: 0000000000000009 R14: dffffc0000000000 R15: 0000000000000008 fscache_print_cookie+0x325/0x346 fs/fscache/cookie.c:56 fscache_hash_cookie.cold+0x1e/0xbf fs/fscache/cookie.c:215 __fscache_acquire_cookie+0x187/0x870 fs/fscache/cookie.c:290 fscache_acquire_cookie include/linux/fscache.h:338 [inline] nfs_fscache_get_client_cookie+0x272/0x440 fs/nfs/fscache.c:87 nfs_alloc_client+0x4e5/0x680 fs/nfs/client.c:189 nfs_get_client+0x77d/0x1310 fs/nfs/client.c:436 nfs_init_server+0x249/0xe10 fs/nfs/client.c:676 nfs_create_server+0x7a/0x4f0 fs/nfs/client.c:960 nfs_try_mount+0x141/0x880 fs/nfs/super.c:1884 nfs_fs_mount+0x171f/0x2e90 fs/nfs/super.c:2701 mount_fs+0xa3/0x310 fs/super.c:1261 vfs_kern_mount.part.0+0x68/0x470 fs/namespace.c:961 vfs_kern_mount fs/namespace.c:951 [inline] do_new_mount fs/namespace.c:2492 [inline] do_mount+0x115c/0x2f50 fs/namespace.c:2822 ksys_mount+0xcf/0x130 fs/namespace.c:3038 __do_sys_mount fs/namespace.c:3052 [inline] __se_sys_mount fs/namespace.c:3049 [inline] __x64_sys_mount+0xba/0x150 fs/namespace.c:3049 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fcd04f140f9 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:00007fcd03486168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fcd05033f80 RCX: 00007fcd04f140f9 RDX: 000000002015bffc RSI: 0000000020000240 RDI: 0000000000000000 RBP: 00007fcd04f6fae9 R08: 0000000020000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcd5ec638f R14: 00007fcd03486300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 8131 Comm: syz-executor.2 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 RIP: 0010:wait_consider_task+0x353/0x3910 kernel/exit.c:1353 Code: 2a 00 41 83 fc 30 0f 84 61 0f 00 00 e8 36 18 2a 00 49 8d 7e 28 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 04 02 <84> c0 74 08 3c 03 0f 8e 8c 2c 00 00 45 8b 6e 28 31 ff 44 89 ee e8 RSP: 0018:ffff88809d2e7b00 EFLAGS: 00000a02 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff81386d2b RDX: 1ffff1100a001845 RSI: ffffffff81386d3a RDI: ffff88805000c228 RBP: ffff88809d2e7d04 R08: 0000000000000001 R09: 0000000000000030 R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000040000005 R14: ffff88805000c200 R15: 0000000040000000 FS: 000055555616b400(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f85275dfd70 CR3: 00000000ab9f4000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_wait_thread kernel/exit.c:1442 [inline] do_wait+0x429/0x9c0 kernel/exit.c:1513 kernel_wait4+0x14c/0x260 kernel/exit.c:1655 __do_sys_wait4 kernel/exit.c:1667 [inline] __se_sys_wait4+0x149/0x160 kernel/exit.c:1663 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f8527584cd7 Code: 89 7c 24 10 48 89 4c 24 18 e8 f5 58 02 00 4c 8b 54 24 18 8b 54 24 14 41 89 c0 48 8b 74 24 08 8b 7c 24 10 b8 3d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 89 44 24 10 e8 25 59 02 00 8b 44 RSP: 002b:00007ffc3dabb970 EFLAGS: 00000293 ORIG_RAX: 000000000000003d RAX: ffffffffffffffda RBX: 0000000000003248 RCX: 00007f8527584cd7 RDX: 0000000040000001 RSI: 00007ffc3dabb9fc RDI: 00000000ffffffff RBP: 00007ffc3dabb9fc R08: 0000000000000000 R09: 000001b605324f2c R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000032 R13: 00000000001a0dbb R14: 000000000000000a R15: 00007ffc3dabba60