Buffer I/O error on dev loop6, logical block 40, lost sync page write ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6690 at fs/buffer.c:1081 mark_buffer_dirty+0x394/0x7d0 Modules linked in: CPU: 1 PID: 6690 Comm: syz.6.512 Not tainted 6.1.119-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:mark_buffer_dirty+0x394/0x7d0 fs/buffer.c:1081 Code: ba e0 ff 48 8b 7d 00 be 04 00 00 00 5b 41 5c 41 5d 41 5e 41 5f 5d e9 0b 6a fc ff e8 a6 31 89 ff e9 42 ff ff ff e8 9c 31 89 ff <0f> 0b e9 b3 fc ff ff e8 90 31 89 ff 0f 0b e9 f6 fc ff ff e8 84 31 RSP: 0018:ffffc90003bc7758 EFLAGS: 00010287 RAX: ffffffff82016a54 RBX: dffffc0000000001 RCX: 0000000000080000 RDX: ffffc90005d99000 RSI: 0000000000029cb6 RDI: 0000000000029cb7 RBP: 0000000000000000 R08: ffffffff82016701 R09: ffffed100ac9d4cc R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: ffff8880564ea658 R14: ffff8880566589b8 R15: ffff8880564ea658 FS: 00007f1547ae76c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4eeac52000 CR3: 00000000581df000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: mark_buffer_dirty_inode+0x85/0x300 fs/buffer.c:575 fat_remove_entries+0x1cc/0x470 fs/fat/dir.c:1050 do_msdos_rename fs/fat/namei_msdos.c:583 [inline] msdos_rename+0x11fa/0x16b0 fs/fat/namei_msdos.c:625 vfs_rename+0xd32/0x10f0 fs/namei.c:4874 do_renameat2+0xde0/0x1440 fs/namei.c:5027 __do_sys_rename fs/namei.c:5073 [inline] __se_sys_rename fs/namei.c:5071 [inline] __x64_sys_rename+0x82/0x90 fs/namei.c:5071 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f1546d7ff19 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f1547ae7058 EFLAGS: 00000246 ORIG_RAX: 0000000000000052 RAX: ffffffffffffffda RBX: 00007f1546f46080 RCX: 00007f1546d7ff19 RDX: 0000000000000000 RSI: 0000000020000840 RDI: 0000000020000800 RBP: 00007f1546df3cc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f1546f46080 R15: 00007fffdc9fdfe8