loop7: rw=2049, sector=2, nr_sectors = 1 limit=0 Buffer I/O error on dev loop7, logical block 2, lost sync page write IO error syncing sysv inode [loop7:00000002] sysv_free_inode: inode 0,1,2 or nonexistent inode ------------[ cut here ]------------ WARNING: CPU: 0 PID: 13514 at fs/buffer.c:1173 mark_buffer_dirty+0x2c6/0x440 fs/buffer.c:1173 Modules linked in: CPU: 0 UID: 0 PID: 13514 Comm: syz-executor Not tainted 6.13.0-rc3-next-20241218-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 RIP: 0010:mark_buffer_dirty+0x2c6/0x440 fs/buffer.c:1173 Code: 4c 89 f7 e8 ec 1f dc ff 49 8b 3e be 20 00 00 00 5b 41 5c 41 5e 41 5f 5d e9 57 cf fb ff e8 d2 aa 75 ff eb 8b e8 cb aa 75 ff 90 <0f> 0b 90 e9 82 fd ff ff e8 bd aa 75 ff 90 0f 0b 90 e9 a9 fd ff ff RSP: 0018:ffffc90003cdfcc0 EFLAGS: 00010293 RAX: ffffffff82498585 RBX: 1ffff1100ca8c301 RCX: ffff88802f8dbc00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffffffff82498303 R09: 1ffff11009762091 R10: dffffc0000000000 R11: ffffed1009762092 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff88804bb10488 R15: ffff888065461838 FS: 00005555729a4500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c2bd210 CR3: 0000000025546000 CR4: 00000000003526f0 Call Trace: sysv_put_super+0x93/0x180 fs/sysv/inode.c:76 generic_shutdown_super+0x139/0x2d0 fs/super.c:642 kill_block_super+0x44/0x90 fs/super.c:1710 deactivate_locked_super+0xc4/0x130 fs/super.c:473 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1414 task_work_run+0x24f/0x310 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f2d86b87057 Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007fffbbc8d2c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f2d86b87057 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffbbc8d380 RBP: 00007fffbbc8d380 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fffbbc8e400 R13: 00007f2d86c0180c R14: 00007fffbbc8e440 R15: 0000000000000008