ERROR: (device loop8): remounting filesystem as read-only
btstack dump:
bn = 0, index = 4
bn = 0, index = 4
bn = 0, index = 4
bn = 0, index = 4
bn = 0, index = 4
bn = 0, index = 4
bn = 0, index = 4
=====================================================
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]
 lookup_last fs/namei.c:2780 [inline]
 path_lookupat+0x7d1/0xdf0 fs/namei.c:2804
 filename_lookup+0x2bc/0x800 fs/namei.c:2833
 kern_path+0x8c/0x320 fs/namei.c:3040
 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:2146
 sock_sendmsg_nosec net/socket.c:727 [inline]
 __sock_sendmsg net/socket.c:742 [inline]
 ____sys_sendmsg+0xfe7/0x1080 net/socket.c:2592
 ___sys_sendmsg+0x271/0x3b0 net/socket.c:2646
 __sys_sendmmsg+0x3bf/0x7c0 net/socket.c:2728
 __compat_sys_sendmmsg net/compat.c:360 [inline]
 __do_compat_sys_sendmmsg net/compat.c:367 [inline]
 __se_compat_sys_sendmmsg net/compat.c:364 [inline]
 __ia32_compat_sys_sendmmsg+0xd2/0x160 net/compat.c:364
 ia32_sys_call+0x27d6/0x4360 arch/x86/include/generated/asm/syscalls_32.h:346
 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:
 jfs_lookup+0x44/0x590 fs/jfs/namei.c:1454
 __lookup_slow+0x56a/0x770 fs/namei.c:1916

CPU: 1 UID: 0 PID: 9764 Comm: syz.8.796 Tainted: G        W           syzkaller #0 PREEMPT(full) 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
=====================================================