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+0x3961/0x3d40 fs/jfs/jfs_dtree.c:774 dtDelete+0xaa/0x4a20 fs/jfs/jfs_dtree.c:2102 jfs_unlink+0x4fc/0x15e0 fs/jfs/namei.c:503 vfs_unlink+0x510/0xb50 fs/namei.c:5470 filename_unlinkat+0x82b/0xc00 fs/namei.c:5540 __do_sys_unlink fs/namei.c:5575 [inline] __se_sys_unlink+0x76/0x320 fs/namei.c:5572 __ia32_sys_unlink+0x47/0x60 fs/namei.c:5572 ia32_sys_call+0x1ac8/0x4360 arch/x86/include/generated/asm/syscalls_32.h:11 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline] __do_fast_syscall_32+0x17f/0x3f0 arch/x86/entry/syscall_32.c:307 do_fast_syscall_32+0x37/0x80 arch/x86/entry/syscall_32.c:332 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/syscall_32.c:370 entry_SYSENTER_compat_after_hwframe+0x84/0x8e Local variable btstack created at: dtDelete+0x68/0x4a20 fs/jfs/jfs_dtree.c:2086 jfs_unlink+0x4fc/0x15e0 fs/jfs/namei.c:503 CPU: 1 UID: 0 PID: 9326 Comm: syz.1.668 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 =====================================================