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
 dtSearch+0x3961/0x3d40 fs/jfs/jfs_dtree.c:774
 jfs_lookup+0x179/0x590 fs/jfs/namei.c:1464
 __lookup_slow+0x56a/0x770 fs/namei.c:1916
 lookup_slow+0x6a/0xd0 fs/namei.c:1933
 walk_component fs/namei.c:2279 [inline]
 link_path_walk+0x170f/0x2650 fs/namei.c:2653
 path_lookupat+0x107/0xdf0 fs/namei.c:2809
 filename_lookup+0x2bc/0x800 fs/namei.c:2839
 kern_path+0x8c/0x320 fs/namei.c:3046
 unix_find_bsd net/unix/af_unix.c:1215 [inline]
 unix_find_other+0x1d2/0x12f0 net/unix/af_unix.c:1277
 unix_dgram_sendmsg+0xc80/0x2d00 net/unix/af_unix.c:2148
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 ____sys_sendmsg+0xf37/0xfd0 net/socket.c:2592
 ___sys_sendmsg+0x271/0x3b0 net/socket.c:2646
 __sys_sendmmsg+0x2d9/0x7c0 net/socket.c:2735
 __do_sys_sendmmsg net/socket.c:2762 [inline]
 __se_sys_sendmmsg net/socket.c:2759 [inline]
 __x64_sys_sendmmsg+0xc6/0x150 net/socket.c:2759
 x64_sys_call+0x2f8c/0x3ea0 arch/x86/include/generated/asm/syscalls_64.h:308
 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_lookup+0x44/0x590 fs/jfs/namei.c:1454
 __lookup_slow+0x56a/0x770 fs/namei.c:1916

CPU: 1 UID: 0 PID: 12908 Comm: syz.2.1737 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026
=====================================================