audit: type=1800 audit(1626450744.064:901): pid=15000 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.0" name="file0" dev="sda1" ino=15038 res=0 nla_parse: 8 callbacks suppressed netlink: 16 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 16 bytes leftover after parsing attributes in process `syz-executor.1'. INFO: trying to register non-static key. The code is fine but needs lockdep annotation, or maybe you didn't initialize this object before use? turning off the locking correctness validator. CPU: 1 PID: 14973 Comm: systemd-udevd Not tainted 4.19.197-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 assign_lock_key kernel/locking/lockdep.c:728 [inline] register_lock_class+0xe82/0x11c0 kernel/locking/lockdep.c:754 __lock_acquire+0x17d/0x3ff0 kernel/locking/lockdep.c:3304 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:128 [inline] _raw_spin_lock_irq+0x5b/0x80 kernel/locking/spinlock.c:160 spin_lock_irq include/linux/spinlock.h:354 [inline] shmem_add_to_page_cache+0x306/0xbb0 mm/shmem.c:607 shmem_getpage_gfp+0x2004/0x37f0 mm/shmem.c:1836 shmem_getpage mm/shmem.c:132 [inline] shmem_write_begin+0xff/0x1e0 mm/shmem.c:2446 generic_perform_write+0x1f8/0x4d0 mm/filemap.c:3170 __generic_file_write_iter+0x24b/0x610 mm/filemap.c:3295 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323 call_write_iter include/linux/fs.h:1821 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x51b/0x770 fs/read_write.c:487 vfs_write+0x1f3/0x540 fs/read_write.c:549 ksys_write+0x12b/0x2a0 fs/read_write.c:599 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fca6fac9970 Code: 73 01 c3 48 8b 0d 28 d5 2b 00 f7 d8 64 89 01 48 83 c8 ff c3 66 0f 1f 44 00 00 83 3d 99 2d 2c 00 00 75 10 b8 01 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 7e 9b 01 00 48 89 04 24 RSP: 002b:00007ffcf69a8318 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000037 RCX: 00007fca6fac9970 RDX: 0000000000000037 RSI: 00005591100208a0 RDI: 000000000000000f RBP: 00005591100208a0 R08: 0000559110030ed0 R09: 00007fca70c578c0 R10: 0000000000000073 R11: 0000000000000246 R12: 0000000000000037 R13: 0000000000000001 R14: 0000559110030df0 R15: 0000000000000037 kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 14973 Comm: systemd-udevd Not tainted 4.19.197-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_del_entry_valid+0x81/0xf0 lib/list_debug.c:51 Code: 0f 84 54 90 84 04 48 b8 00 02 00 00 00 00 ad de 49 39 c4 0f 84 55 90 84 04 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 51 49 8b 14 24 48 39 ea 0f 85 0c 90 84 04 49 8d 7d RSP: 0018:ffff888035f4fbe0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8880985ed7c8 RCX: ffffffff814bdc7b RDX: 0000000000000000 RSI: ffffffff8189ab0f RDI: ffff8880985ed7d0 RBP: ffff8880985ed7c8 R08: 0000000000000001 R09: ffffed10147a1278 R10: ffff8880a3d093c3 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffff8880985ed7d0 R15: ffff8880985ed658 FS: 00007fca70c578c0(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000541198 CR3: 00000000a6d87000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry include/linux/list.h:117 [inline] list_del_init include/linux/list.h:159 [inline] list_lru_del+0x11b/0x570 mm/list_lru.c:156 inode_lru_list_del fs/inode.c:434 [inline] iput_final fs/inode.c:1552 [inline] iput+0x4c0/0x860 fs/inode.c:1581 dentry_unlink_inode+0x265/0x320 fs/dcache.c:374 __dentry_kill+0x3c0/0x640 fs/dcache.c:566 dentry_kill+0xc4/0x510 fs/dcache.c:685 dput+0x55f/0x640 fs/dcache.c:846 do_renameat2+0xb69/0xc70 fs/namei.c:4633 __do_sys_rename fs/namei.c:4675 [inline] __se_sys_rename fs/namei.c:4673 [inline] __x64_sys_rename+0x5d/0x80 fs/namei.c:4673 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7fca6fa52d47 Code: 75 12 48 89 df e8 19 84 07 00 85 c0 0f 95 c0 0f b6 c0 f7 d8 5b c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 b8 52 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 21 41 33 00 f7 d8 64 89 01 48 RSP: 002b:00007ffcf69a8408 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 000055911002fd40 RCX: 00007fca6fa52d47 RDX: 0000000000000000 RSI: 00007ffcf69a8410 RDI: 0000559110020450 RBP: 00007ffcf69a84d0 R08: 0000559110030ed0 R09: 0000559110030df0 R10: 00007fca70c578c0 R11: 0000000000000246 R12: 00007ffcf69a8410 R13: 0000000000000001 R14: 000055910e1086cb R15: 0000000000000000 Modules linked in: ---[ end trace 26e5ba4ad5ef022f ]--- RIP: 0010:__list_del_entry_valid+0x81/0xf0 lib/list_debug.c:51 Code: 0f 84 54 90 84 04 48 b8 00 02 00 00 00 00 ad de 49 39 c4 0f 84 55 90 84 04 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75 51 49 8b 14 24 48 39 ea 0f 85 0c 90 84 04 49 8d 7d RSP: 0018:ffff888035f4fbe0 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff8880985ed7c8 RCX: ffffffff814bdc7b RDX: 0000000000000000 RSI: ffffffff8189ab0f RDI: ffff8880985ed7d0 RBP: ffff8880985ed7c8 R08: 0000000000000001 R09: ffffed10147a1278 R10: ffff8880a3d093c3 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffff8880985ed7d0 R15: ffff8880985ed658 FS: 00007fca70c578c0(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000541198 CR3: 00000000a6d87000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400