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 dtReadFirst+0xc61/0xc90 fs/jfs/jfs_dtree.c:3099 dtReadNext fs/jfs/jfs_dtree.c:3157 [inline] jfs_readdir+0x138d/0x5fc0 fs/jfs/jfs_dtree.c:2871 wrap_directory_iterator+0xda/0x180 fs/readdir.c:67 shared_jfs_readdir+0x3d/0x50 fs/jfs/namei.c:1543 iterate_dir+0x459/0x630 fs/readdir.c:110 __do_sys_getdents fs/readdir.c:319 [inline] __se_sys_getdents+0x182/0x560 fs/readdir.c:304 __x64_sys_getdents+0x97/0xe0 fs/readdir.c:304 x64_sys_call+0x1150/0x3ea0 arch/x86/include/generated/asm/syscalls_64.h:79 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x134/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f Local variable btstack created at: jfs_readdir+0xdd/0x5fc0 fs/jfs/jfs_dtree.c:2727 wrap_directory_iterator+0xda/0x180 fs/readdir.c:67 CPU: 0 UID: 0 PID: 9316 Comm: syz.4.416 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026 =====================================================