btstack dump:
bn = 0, index = 0
bn = 2d, index = 0
bn = 0, index = 0
bn = 2d, index = 0
bn = 0, index = 0
bn = 2d, index = 0
bn = 0, index = 0
=====================================================
BUG: KMSAN: uninit-value in BT_STACK_DUMP fs/jfs/jfs_btree.h:136 [inline]
BUG: KMSAN: uninit-value in dtSearch+0x40d5/0x4180 fs/jfs/jfs_dtree.c:774
 BT_STACK_DUMP fs/jfs/jfs_btree.h:136 [inline]
 dtSearch+0x40d5/0x4180 fs/jfs/jfs_dtree.c:774
 jfs_lookup+0x1a2/0x510 fs/jfs/namei.c:1461
 lookup_open fs/namei.c:3644 [inline]
 open_last_lookups fs/namei.c:3765 [inline]
 path_openat+0x298f/0x6280 fs/namei.c:4001
 do_filp_open+0x26b/0x610 fs/namei.c:4031
 do_sys_openat2+0x1ca/0x300 fs/open.c:1429
 do_sys_open fs/open.c:1444 [inline]
 __do_compat_sys_openat fs/open.c:1506 [inline]
 __se_compat_sys_openat fs/open.c:1504 [inline]
 __ia32_compat_sys_openat+0x298/0x310 fs/open.c:1504
 ia32_sys_call+0x1839/0x41f0 arch/x86/include/generated/asm/syscalls_32.h:296
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/syscall_32.c:306
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/syscall_32.c:331
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/syscall_32.c:369
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Local variable path created at:
 tomoyo_path_mknod+0x47/0x1e0 security/tomoyo/tomoyo.c:228
 security_path_mknod+0x20f/0x650 security/security.c:1899

CPU: 1 UID: 0 PID: 6369 Comm: syz.1.150 Not tainted 6.15.0-rc2-syzkaller #0 PREEMPT(undef) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
=====================================================