ERROR: (device loop0): dtSearch: stack overrun!
btstack dump:
bn = 0, index = 0
bn = 0, index = 0
bn = 0, index = 0
bn = 0, index = 0
bn = 0, index = 0
bn = 0, index = 0
bn = 0, index = 0
=====================================================
BUG: KMSAN: uninit-value in BT_STACK_DUMP+0x5e5/0x600 fs/jfs/jfs_btree.h:136
 BT_STACK_DUMP+0x5e5/0x600 fs/jfs/jfs_btree.h:136
 dtSearch+0x393f/0x3d30 fs/jfs/jfs_dtree.c:774
 jfs_lookup+0x179/0x590 fs/jfs/namei.c:1461
 __lookup_slow+0x563/0x760 fs/namei.c:1816
 lookup_slow+0x6a/0xd0 fs/namei.c:1833
 walk_component+0x444/0x650 fs/namei.c:2151
 lookup_last fs/namei.c:2652 [inline]
 path_lookupat+0x251/0x6b0 fs/namei.c:2676
 filename_lookup+0x2bd/0x800 fs/namei.c:2705
 filename_setxattr+0x7e/0xcc0 fs/xattr.c:660
 path_setxattrat+0x734/0x820 fs/xattr.c:713
 __do_sys_setxattr fs/xattr.c:747 [inline]
 __se_sys_setxattr fs/xattr.c:743 [inline]
 __x64_sys_setxattr+0x100/0x1b0 fs/xattr.c:743
 x64_sys_call+0xcb5/0x3e30 arch/x86/include/generated/asm/syscalls_64.h:189
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Local variable fbatch created at:
 truncate_inode_pages_range+0x50/0x1420 mm/truncate.c:346
 truncate_inode_pages mm/truncate.c:460 [inline]
 truncate_inode_pages_final+0x8a/0xa0 mm/truncate.c:495

CPU: 1 UID: 0 PID: 6589 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(none) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
=====================================================