loop0: detected capacity change from 0 to 128
attempt to access beyond end of device
loop0: rw=0, want=6491538, limit=128
Buffer I/O error on dev loop0, logical block 3245768, async page read
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5287 at fs/inode.c:389 inc_nlink+0x11d/0x130 fs/inode.c:389
Modules linked in:
CPU: 1 PID: 5287 Comm: syz.0.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:inc_nlink+0x11d/0x130 fs/inode.c:389
Code: dc ee 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 ad dc ee ff e9 3f ff ff ff e8 93 d8 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:ffffc900034afd60 EFLAGS: 00010293
RAX: ffffffff81cf470d RBX: ffff888069300080 RCX: ffff88801b3a0000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888016dcd2b3 R09: 1ffff11002db9a56
R10: dffffc0000000000 R11: ffffed1002db9a57 R12: dffffc0000000000
R13: 1ffff1100d260010 R14: ffff888069300038 R15: 0000000000000000
FS:  00007f8d13a2c6c0(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffc2a50aab8 CR3: 000000005df19000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 inode_inc_link_count include/linux/fs.h:2498 [inline]
 sysv_mkdir+0x1d/0x120 fs/sysv/namei.c:119
 vfs_mkdir+0x387/0x570 fs/namei.c:4073
 do_mkdirat+0x1df/0x5b0 fs/namei.c:4098
 __do_sys_mkdirat fs/namei.c:4113 [inline]
 __se_sys_mkdirat fs/namei.c:4111 [inline]
 __x64_sys_mkdirat+0x85/0x90 fs/namei.c:4111
 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: 0033:0x7f8d143c8ef9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f8d13a2c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007f8d14633fa0 RCX: 00007f8d143c8ef9
RDX: 00000000000001ff RSI: 0000200000000000 RDI: ffffffffffffff9c
RBP: 00007f8d1445dee0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8d14634038 R14: 00007f8d14633fa0 R15: 00007ffd59682298
 </TASK>