loop3: detected capacity change from 0 to 4 VFS: Found a V7 FS (block size = 512) on device loop3 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 10107 at fs/inode.c:365 inc_nlink+0x144/0x160 fs/inode.c:365 Modules linked in: CPU: 0 PID: 10107 Comm: syz-executor.3 Not tainted 5.15.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:inc_nlink+0x144/0x160 fs/inode.c:365 Code: ff 4c 89 e7 e8 8d c4 ed ff e9 42 ff ff ff 4c 89 e7 e8 10 c4 ed ff e9 fc fe ff ff 4c 89 e7 e8 03 c4 ed ff eb d4 e8 2c 6d a6 ff <0f> 0b e9 6e ff ff ff e8 00 c4 ed ff e9 44 ff ff ff e8 f6 c3 ed ff RSP: 0018:ffffc9000228fdd0 EFLAGS: 00010216 RAX: 000000000001355b RBX: ffff88808e304038 RCX: ffffc9000fce8000 RDX: 0000000000040000 RSI: ffffffff81d06ae4 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff81d06a50 R11: 0000000000000000 R12: ffff88808e304080 R13: ffff88806f158bc0 R14: 0000000000000000 R15: 000000000000007e FS: 00007fa6d8b25700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f155a63c000 CR3: 0000000079e87000 CR4: 0000000000350ee0 Call Trace: inode_inc_link_count include/linux/fs.h:2482 [inline] sysv_mkdir+0x21/0x150 fs/sysv/namei.c:119 vfs_mkdir+0x1ce/0x3f0 fs/namei.c:3885 do_mkdirat+0x285/0x300 fs/namei.c:3911 __do_sys_mkdir fs/namei.c:3931 [inline] __se_sys_mkdir fs/namei.c:3929 [inline] __x64_sys_mkdir+0xf2/0x140 fs/namei.c:3929 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7fa6db5afa39 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:00007fa6d8b25188 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 00007fa6db6b2f60 RCX: 00007fa6db5afa39 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000200000c0 RBP: 00007fa6db609c5f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcbf771c7f R14: 00007fa6d8b25300 R15: 0000000000022000