XFS (loop0): Unmounting Filesystem acfebfcd-0806-4e27-9777-0ac4ff5ddf54
==================================================================
BUG: KASAN: slab-out-of-bounds in xlog_pack_data+0x2c8/0x444 fs/xfs/xfs_log.c:1822
Read of size 4 at addr ffff0000e3464e00 by task syz-executor.0/5827

CPU: 1 PID: 5827 Comm: syz-executor.0 Not tainted 6.4.0-rc6-syzkaller-00037-gb6dad5178cea #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
Call trace:
 dump_backtrace+0x1b8/0x1e4 arch/arm64/kernel/stacktrace.c:233
 show_stack+0x2c/0x44 arch/arm64/kernel/stacktrace.c:240
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xd0/0x124 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:351 [inline]
 print_report+0x174/0x514 mm/kasan/report.c:462
 kasan_report+0xd4/0x130 mm/kasan/report.c:572
 __asan_report_load4_noabort+0x20/0x2c mm/kasan/report_generic.c:380
 xlog_pack_data+0x2c8/0x444 fs/xfs/xfs_log.c:1822
 xlog_sync+0x36c/0x10f4 fs/xfs/xfs_log.c:2093
 xlog_state_release_iclog+0x460/0x934 fs/xfs/xfs_log.c:619
 xlog_force_iclog fs/xfs/xfs_log.c:888 [inline]
 xlog_force_and_check_iclog fs/xfs/xfs_log.c:3172 [inline]
 xlog_force_lsn+0x5ec/0x76c fs/xfs/xfs_log.c:3344
 xfs_log_force_seq+0x278/0x76c fs/xfs/xfs_log.c:3409
 __xfs_trans_commit+0x9e4/0x1178 fs/xfs/xfs_trans.c:1021
 xfs_trans_commit+0x24/0x34 fs/xfs/xfs_trans.c:1056
 xfs_sync_sb+0x144/0x1ac fs/xfs/libxfs/xfs_sb.c:1015
 xfs_log_cover fs/xfs/xfs_log.c:1300 [inline]
 xfs_log_quiesce+0x57c/0x844 fs/xfs/xfs_log.c:1109
 xfs_log_clean+0xb0/0xd50 fs/xfs/xfs_log.c:1116
 xfs_log_unmount+0x38/0x1a4 fs/xfs/xfs_log.c:1131
 xfs_unmountfs+0x1c4/0x268 fs/xfs/xfs_mount.c:1096
 xfs_fs_put_super+0x7c/0x264 fs/xfs/xfs_super.c:1130
 generic_shutdown_super+0x130/0x328 fs/super.c:500
 kill_block_super+0x70/0xdc fs/super.c:1407
 deactivate_locked_super+0xac/0x124 fs/super.c:331
 deactivate_super+0xe0/0x100 fs/super.c:362
 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1177
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1184
 task_work_run+0x230/0x2e0 kernel/task_work.c:179
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 do_notify_resume+0x2180/0x3c90 arch/arm64/kernel/signal.c:1304
 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline]
 el0_svc+0x90/0x15c arch/arm64/kernel/entry-common.c:638
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:591

The buggy address belongs to the physical page:
page:00000000ea5b403f refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x123440
head:00000000ea5b403f order:6 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x5ffc00000010000(head|node=0|zone=2|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 05ffc00000010000 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000e3464d00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff0000e3464d80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff0000e3464e00: 01 fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
                   ^
 ffff0000e3464e80: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
 ffff0000e3464f00: fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe fe
==================================================================
XFS (loop0): Unmounting Filesystem acfebfcd-0806-4e27-9777-0ac4ff5ddf54
XFS (loop0): Unmounting Filesystem acfebfcd-0806-4e27-9777-0ac4ff5ddf54
XFS (loop0): Unmounting Filesystem acfebfcd-0806-4e27-9777-0ac4ff5ddf54
XFS (loop0): Unmounting Filesystem acfebfcd-0806-4e27-9777-0ac4ff5ddf54
XFS (loop0): Unmounting Filesystem acfebfcd-0806-4e27-9777-0ac4ff5ddf54
XFS (loop0): Unmounting Filesystem acfebfcd-0806-4e27-9777-0ac4ff5ddf54
XFS (loop0): Unmounting Filesystem acfebfcd-0806-4e27-9777-0ac4ff5ddf54
XFS (loop0): Unmounting Filesystem acfebfcd-0806-4e27-9777-0ac4ff5ddf54
XFS (loop0): Unmounting Filesystem acfebfcd-0806-4e27-9777-0ac4ff5ddf54
XFS (loop0): Unmounting Filesystem acfebfcd-0806-4e27-9777-0ac4ff5ddf54
XFS (loop0): Unmounting Filesystem acfebfcd-0806-4e27-9777-0ac4ff5ddf54
XFS (loop0): Unmounting Filesystem acfebfcd-0806-4e27-9777-0ac4ff5ddf54
XFS (loop0): Unmounting Filesystem acfebfcd-0806-4e27-9777-0ac4ff5ddf54
XFS (loop0): Unmounting Filesystem acfebfcd-0806-4e27-9777-0ac4ff5ddf54
XFS (loop0): Unmounting Filesystem acfebfcd-0806-4e27-9777-0ac4ff5ddf54
XFS (loop0): Unmounting Filesystem acfebfcd-0806-4e27-9777-0ac4ff5ddf54
XFS (loop0): Unmounting Filesystem acfebfcd-0806-4e27-9777-0ac4ff5ddf54