syz.7.982: attempt to access beyond end of device
loop7: rw=0, sector=6491536, nr_sectors = 2 limit=128
Buffer I/O error on dev loop7, logical block 3245768, async page read
------------[ cut here ]------------
WARNING: CPU: 1 PID: 10748 at fs/inode.c:389 inc_nlink+0x121/0x130 fs/inode.c:389
Modules linked in:
CPU: 1 PID: 10748 Comm: syz.7.982 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:inc_nlink+0x121/0x130 fs/inode.c:389
Code: 0d ea 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 39 0d ea ff e9 3f ff ff ff e8 3f d1 91 ff <0f> 0b eb 82 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 41 57 41
RSP: 0018:ffffc90003947d78 EFLAGS: 00010293
RAX: ffffffff81f54ee1 RBX: ffff88804e2bc090 RCX: ffff88801fb5bc00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffff888017c73903 R09: 1ffff11002f8e720
R10: dffffc0000000000 R11: ffffed1002f8e721 R12: dffffc0000000000
R13: 1ffff11009c57812 R14: ffff88804e2bc038 R15: 0000000000000000
FS:  00007fe248fcf6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe248185980 CR3: 0000000063eaf000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 inode_inc_link_count include/linux/fs.h:2334 [inline]
 sysv_mkdir+0x21/0x120 fs/sysv/namei.c:119
 vfs_mkdir+0x296/0x440 fs/namei.c:4121
 do_mkdirat+0x1dc/0x450 fs/namei.c:4144
 __do_sys_mkdirat fs/namei.c:4159 [inline]
 __se_sys_mkdirat fs/namei.c:4157 [inline]
 __x64_sys_mkdirat+0x89/0xa0 fs/namei.c:4157
 do_syscall_x64 arch/x86/entry/common.c:46 [inline]
 do_syscall_64+0x55/0xa0 arch/x86/entry/common.c:76
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fe24819b687
Code: 00 66 90 48 89 f2 b9 00 01 00 00 48 89 fe bf 9c ff ff ff e9 db f7 ff ff 66 2e 0f 1f 84 00 00 00 00 00 90 b8 02 01 00 00 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:00007fe248fcee58 EFLAGS: 00000246 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007fe248fceee0 RCX: 00007fe24819b687
RDX: 00000000000001ff RSI: 0000200000000140 RDI: 00000000ffffff9c
RBP: 0000000000000000 R08: 0000200000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000200000000140
R13: 00007fe248fceea0 R14: 0000000000000000 R15: 0000000000000000
 </TASK>