syz.7.2275: attempt to access beyond end of device
loop7: rw=2049, sector=37, nr_sectors = 1 limit=0
buffer_io_error: 2754 callbacks suppressed
Buffer I/O error on dev loop7, logical block 37, lost sync page write
------------[ cut here ]------------
WARNING: CPU: 0 PID: 18321 at fs/buffer.c:1188 mark_buffer_dirty+0x2bb/0x4c0 fs/buffer.c:1188
Modules linked in:
CPU: 0 PID: 18321 Comm: syz.7.2275 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:mark_buffer_dirty+0x2bb/0x4c0 fs/buffer.c:1188
Code: 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 cf 9a fc ff e8 9a c9 88 ff 48 89 df 5b 41 5c 41 5e 41 5f 5d e9 6a 09 e8 ff e8 85 c9 88 ff <0f> 0b e9 84 fd ff ff e8 79 c9 88 ff 0f 0b e9 b0 fd ff ff e8 6d c9
RSP: 0018:ffffc9000c097810 EFLAGS: 00010283
RAX: ffffffff81fe4b2b RBX: ffff888041c311d0 RCX: 0000000000080000
RDX: ffffc9000d92b000 RSI: 0000000000013c33 RDI: 0000000000013c34
RBP: ffff888020084101 R08: ffff888041c311d7 R09: 1ffff1100838623a
R10: dffffc0000000000 R11: ffffed100838623b R12: dffffc0000000000
R13: ffff88806a2522f8 R14: ffffea000170d9d8 R15: 0000000000000012
FS:  00007f756a0076c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2d20dff8 CR3: 0000000057624000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 mark_buffer_dirty_inode+0x86/0x2e0 fs/buffer.c:681
 fat_remove_entries+0x181/0x400 fs/fat/dir.c:1050
 vfat_rename fs/fat/namei_vfat.c:1032 [inline]
 vfat_rename2+0x180f/0x1c90 fs/fat/namei_vfat.c:1174
 vfs_rename+0xba2/0xed0 fs/namei.c:4880
 do_renameat2+0x8e9/0xce0 fs/namei.c:5033
 __do_sys_renameat2 fs/namei.c:5066 [inline]
 __se_sys_renameat2 fs/namei.c:5063 [inline]
 __x64_sys_renameat2+0xd2/0xe0 fs/namei.c:5063
 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: 0033:0x7f756919aeb9
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:00007f756a007028 EFLAGS: 00000246 ORIG_RAX: 000000000000013c
RAX: ffffffffffffffda RBX: 00007f7569415fa0 RCX: 00007f756919aeb9
RDX: ffffffffffffff9c RSI: 0000200000000440 RDI: ffffffffffffff9c
RBP: 00007f7569208c1f R08: 0000000000000000 R09: 0000000000000000
R10: 0000200000000140 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7569416038 R14: 00007f7569415fa0 R15: 00007fff8a610e88
 </TASK>