loop0: detected capacity change from 0 to 128
EXT4-fs: Invalid want_extra_isize 8
loop0: detected capacity change from 0 to 128
VFS: Found a Xenix FS (block size = 512) on device loop0
sysv_free_block: trying to free block not in datazone
loop0: detected capacity change from 128 to 0
usbtmc 5-1:16.0: stb usb_control_msg returned -110
syz.0.0: attempt to access beyond end of device
loop0: rw=2049, sector=2, nr_sectors = 1 limit=0
Buffer I/O error on dev loop0, logical block 2, lost sync page write
IO error syncing sysv inode [loop0:00000002]
sysv_free_inode: inode 0,1,2 or nonexistent inode
------------[ cut here ]------------
WARNING: CPU: 0 PID: 5324 at fs/buffer.c:1177 mark_buffer_dirty+0x2e5/0x520 fs/buffer.c:1177
Modules linked in:
CPU: 0 UID: 0 PID: 5324 Comm: syz.0.0 Not tainted 6.12.0-rc7-syzkaller-00189-ge8bdb3c8be08 #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:mark_buffer_dirty+0x2e5/0x520 fs/buffer.c:1177
Code: 89 df e8 ae 78 db ff 48 8b 3b be 20 00 00 00 5b 41 5e 41 5f 5d e9 fb e8 fb ff e8 36 9c 71 ff e9 73 ff ff ff e8 2c 9c 71 ff 90 <0f> 0b 90 e9 61 fd ff ff e8 1e 9c 71 ff 90 0f 0b 90 e9 88 fd ff ff
RSP: 0018:ffffc9000d45f8a8 EFLAGS: 00010293
RAX: ffffffff82234de4 RBX: 1ffff11008871401 RCX: ffff888038c22440
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff82234b41 R09: 1ffff110087d43d0
R10: dffffc0000000000 R11: ffffed10087d43d1 R12: dffffc0000000000
R13: dffffc0000000000 R14: ffff888043ea1e80 R15: ffff88804438a438
FS:  0000000000000000(0000) GS:ffff88801fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffff0197ff8 CR3: 000000001e320000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 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:1373
 task_work_run+0x24f/0x310 kernel/task_work.c:239
 exit_task_work include/linux/task_work.h:43 [inline]
 do_exit+0xa2f/0x28e0 kernel/exit.c:939
 do_group_exit+0x207/0x2c0 kernel/exit.c:1088
 get_signal+0x16a3/0x1740 kernel/signal.c:2918
 arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd6a117e719
Code: Unable to access opcode bytes at 0x7fd6a117e6ef.
RSP: 002b:00007fd6a1fca038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffff92 RBX: 00007fd6a1335f80 RCX: 00007fd6a117e719
RDX: 0000000000000000 RSI: 0000000080015b1a RDI: 000000000000000b
RBP: 00007fd6a11f175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fd6a1335f80 R15: 00007fff5e33bfb8
 </TASK>