loop7: detected capacity change from 0 to 32768
ERROR: (device loop7): dtSearch: stack overrun!
ERROR: (device loop7): remounting filesystem as read-only
btstack dump:
bn = 0, index = 0
bn = 72c, index = 96
bn = 0, index = 0
bn = 72c, index = 96
bn = 0, index = 0
bn = 72c, index = 96
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_symlink+0x913/0x1f10 fs/jfs/namei.c:1017
 vfs_symlink+0x1f1/0x470 fs/namei.c:4817
 do_symlinkat+0x25f/0xbd0 fs/namei.c:4843
 __do_sys_symlinkat fs/namei.c:4859 [inline]
 __se_sys_symlinkat fs/namei.c:4856 [inline]
 __x64_sys_symlinkat+0xf5/0x180 fs/namei.c:4856
 x64_sys_call+0x3244/0x3e30 arch/x86/include/generated/asm/syscalls_64.h:267
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0xfa0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Local variable btstack created at:
 jfs_symlink+0x9f/0x1f10 fs/jfs/namei.c:886
 vfs_symlink+0x1f1/0x470 fs/namei.c:4817

CPU: 1 UID: 0 PID: 22798 Comm: syz.7.5520 Not tainted syzkaller #0 PREEMPT(none) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
=====================================================