------------[ cut here ]------------
WARNING: CPU: 1 PID: 5828 at fs/buffer.c:1173 mark_buffer_dirty+0x3a2/0x420 fs/buffer.c:1173
Modules linked in:
CPU: 1 UID: 0 PID: 5828 Comm: syz-executor Not tainted 6.13.0-rc3-syzkaller-00209-g499551201b5f #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:mark_buffer_dirty+0x3a2/0x420 fs/buffer.c:1173
Code: 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 85 00 00 00 48 8b 3b be 20 00 00 00 e8 a9 47 fc ff e9 c8 fd ff ff e8 7f c1 79 ff 90 <0f> 0b 90 e9 8c fc ff ff e8 71 c1 79 ff 90 0f 0b 90 e9 b2 fc ff ff
RSP: 0018:ffffc900032a7930 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff8880480591d0 RCX: ffffffff82204fcd
RDX: ffff888064089e00 RSI: ffffffff82205341 RDI: 0000000000000001
RBP: ffff8880585cac00 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff88804f89b66a
R13: 0000000000000000 R14: 0000000000000009 R15: 0000000000000009
FS:  0000555586e46500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbc5ebffef0 CR3: 000000005daf4000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 dirty_sb fs/sysv/sysv.h:117 [inline]
 sysv_free_block+0x543/0xb80 fs/sysv/balloc.c:96
 free_data fs/sysv/itree.c:335 [inline]
 sysv_truncate+0xc2f/0xf00 fs/sysv/itree.c:393
 sysv_evict_inode+0xcf/0x110 fs/sysv/inode.c:292
 evict+0x40c/0x960 fs/inode.c:796
 iput_final fs/inode.c:1946 [inline]
 iput fs/inode.c:1972 [inline]
 iput+0x52a/0x890 fs/inode.c:1958
 dentry_unlink_inode+0x29c/0x480 fs/dcache.c:422
 __dentry_kill+0x1d0/0x600 fs/dcache.c:625
 dput.part.0+0x4b1/0x9b0 fs/dcache.c:867
 dput fs/dcache.c:857 [inline]
 do_one_tree fs/dcache.c:1563 [inline]
 shrink_dcache_for_umount+0x159/0x3e0 fs/dcache.c:1577
 generic_shutdown_super+0x76/0x3d0 fs/super.c:620
 kill_block_super+0x3b/0x90 fs/super.c:1710
 deactivate_locked_super+0xc1/0x1a0 fs/super.c:473
 deactivate_super+0xde/0x100 fs/super.c:506
 cleanup_mnt+0x222/0x450 fs/namespace.c:1373
 task_work_run+0x151/0x250 kernel/task_work.c:239
 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+0x27b/0x2a0 kernel/entry/common.c:218
 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f4d43b87057
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:00007ffec810b888 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f4d43b87057
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffec810b940
RBP: 00007ffec810b940 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffec810c9c0
R13: 00007f4d43c01894 R14: 00007ffec810ca00 R15: 00000000000000fe
 </TASK>