ERROR: (device loop7): remounting filesystem as read-only
btstack dump:
bn = 0, index = 0
bn = 2c, index = 0
bn = 0, index = 0
bn = 2c, index = 0
bn = 0, index = 0
bn = 2c, 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 dtReadFirst+0x138b/0x13b0 fs/jfs/jfs_dtree.c:3089
 BT_STACK_DUMP fs/jfs/jfs_btree.h:136 [inline]
 dtReadFirst+0x138b/0x13b0 fs/jfs/jfs_dtree.c:3089
 dtReadNext fs/jfs/jfs_dtree.c:3147 [inline]
 jfs_readdir+0x13a1/0x6450 fs/jfs/jfs_dtree.c:2862
 wrap_directory_iterator+0xf3/0x190 fs/readdir.c:65
 shared_jfs_readdir+0x3c/0x50 fs/jfs/namei.c:1540
 iterate_dir+0x5b3/0x9e0 fs/readdir.c:108
 __do_compat_sys_getdents fs/readdir.c:568 [inline]
 __se_compat_sys_getdents+0x16d/0x530 fs/readdir.c:554
 __ia32_compat_sys_getdents+0x93/0xe0 fs/readdir.c:554
 ia32_sys_call+0x2124/0x4180 arch/x86/include/generated/asm/syscalls_32.h:142
 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
 __do_fast_syscall_32+0xb0/0x110 arch/x86/entry/common.c:386
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/common.c:411
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/common.c:449
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Local variable btstack created at:
 jfs_readdir+0xe2/0x6450 fs/jfs/jfs_dtree.c:2718
 wrap_directory_iterator+0xf3/0x190 fs/readdir.c:65

CPU: 0 UID: 0 PID: 15540 Comm: syz.7.3032 Not tainted 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
=====================================================