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
 dtReadFirst+0xebf/0xf00 fs/jfs/jfs_dtree.c:3102
 jfs_readdir+0x11b9/0x6db0 fs/jfs/jfs_dtree.c:2832
 wrap_directory_iterator+0xda/0x180 fs/readdir.c:65
 shared_jfs_readdir+0x3d/0x50 fs/jfs/namei.c:1540
 iterate_dir+0x452/0x620 fs/readdir.c:108
 __do_sys_getdents64 fs/readdir.c:410 [inline]
 __se_sys_getdents64+0x17e/0x550 fs/readdir.c:396
 __x64_sys_getdents64+0x97/0xe0 fs/readdir.c:396
 x64_sys_call+0x3a14/0x3e20 arch/x86/include/generated/asm/syscalls_64.h:218
 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 btstack created at:
 jfs_readdir+0xde/0x6db0 fs/jfs/jfs_dtree.c:2730
 wrap_directory_iterator+0xda/0x180 fs/readdir.c:65

CPU: 0 UID: 0 PID: 7014 Comm: syz.5.232 Not tainted syzkaller #0 PREEMPT(none) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
=====================================================