Buffer I/O error on dev loop2, logical block 3245768, async page read ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7219 at fs/inode.c:389 inc_nlink+0x11d/0x130 fs/inode.c:389 Modules linked in: CPU: 0 PID: 7219 Comm: syz.2.544 Not tainted 5.15.182-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025 RIP: 0010:inc_nlink+0x11d/0x130 fs/inode.c:389 Code: 0d ef ff e9 3a ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 4c ff ff ff 48 89 df e8 3d 0d ef ff e9 3f ff ff ff e8 13 9a a9 ff <0f> 0b eb 82 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 41 57 41 RSP: 0018:ffffc90003e5fd60 EFLAGS: 00010287 RAX: ffffffff81ce23fd RBX: ffff88805d31c080 RCX: 0000000000080000 RDX: ffffc9000edae000 RSI: 000000000000e864 RDI: 000000000000e865 RBP: 0000000000000000 R08: dffffc0000000000 R09: ffffed1002d39a57 R10: ffffed1002d39a57 R11: 1ffff11002d39a56 R12: dffffc0000000000 R13: 1ffff1100ba63810 R14: ffff88805d31c038 R15: 0000000000000000 FS: 00007fa493b3b6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000561cf627a950 CR3: 0000000047098000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: inode_inc_link_count include/linux/fs.h:2497 [inline] sysv_mkdir+0x1d/0x120 fs/sysv/namei.c:119 vfs_mkdir+0x387/0x570 fs/namei.c:4065 do_mkdirat+0x1d7/0x5a0 fs/namei.c:4090 __do_sys_mkdirat fs/namei.c:4105 [inline] __se_sys_mkdirat fs/namei.c:4103 [inline] __x64_sys_mkdirat+0x85/0x90 fs/namei.c:4103 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x66/0xd0 RIP: 0033:0x7fa495cf31d7 Code: 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 b8 02 01 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa493b3ae68 EFLAGS: 00000246 ORIG_RAX: 0000000000000102 RAX: ffffffffffffffda RBX: 00007fa493b3aef0 RCX: 00007fa495cf31d7 RDX: 00000000000001ff RSI: 0000200000000440 RDI: 00000000ffffff9c RBP: 0000000000000000 R08: 0000200000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000440 R13: 00007fa493b3aeb0 R14: 0000000000000000 R15: 0000000000000000