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: 9043 at fs/inode.c:363 inc_nlink+0x126/0x150 fs/inode.c:367 Modules linked in: CPU: 0 PID: 9043 Comm: syz-executor.3 Not tainted 5.15.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:inc_nlink+0x126/0x150 fs/inode.c:363 Code: ef 89 44 24 04 e8 8a 6a f0 ff 8b 44 24 04 e9 4d ff ff ff 48 89 ef e8 09 6a f0 ff e9 14 ff ff ff 48 89 ef e8 fc 69 f0 ff eb cc <0f> 0b e9 6a ff ff ff e8 fe 69 f0 ff e9 53 ff ff ff e8 f4 69 f0 ff RSP: 0018:ffffc9000ce1fdc8 EFLAGS: 00010246 RAX: dffffc0000000000 RBX: ffff88805b04fac8 RCX: 00000000000000a8 RDX: 1ffff1100b609f74 RSI: ffff88805b04fac8 RDI: ffff88805b04fba0 RBP: ffff88805b04fb10 R08: ffff88805b04fae8 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff88805b04fac8 R13: ffff88806cb06330 R14: ffffffff88f42240 R15: ffff88805b04fac8 FS: 00007f248afb7700(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000561240b8d9c8 CR3: 0000000076de5000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_inc_link_count include/linux/fs.h:2482 [inline] sysv_mkdir+0x17/0xf0 fs/sysv/namei.c:119 vfs_mkdir+0x43d/0x720 fs/namei.c:3885 do_mkdirat+0x20f/0x280 fs/namei.c:3911 __do_sys_mkdirat fs/namei.c:3926 [inline] __se_sys_mkdirat fs/namei.c:3924 [inline] __x64_sys_mkdirat+0xef/0x140 fs/namei.c:3924 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: 0033:0x4665f9 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:00007f248afb7188 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 000000000056bf60 RCX: 00000000004665f9 RDX: 00000000000000b8 RSI: 0000000020000040 RDI: 0000000000000005 RBP: 00000000004bfce1 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf60 R13: 00007ffd2a6856ff R14: 00007f248afb7300 R15: 0000000000022000