loop0: detected capacity change from 0 to 64
hfs: filesystem is marked locked, mounting read-only.
=====================================================
BUG: KMSAN: uninit-value in hfs_cat_keycmp+0x154/0x210 fs/hfs/catalog.c:178
 hfs_cat_keycmp+0x154/0x210 fs/hfs/catalog.c:178
 __hfs_brec_find+0x254/0x830 fs/hfs/bfind.c:75
 hfs_brec_find+0x436/0x980 fs/hfs/bfind.c:138
 hfs_brec_read+0x3f/0x1a0 fs/hfs/bfind.c:165
 hfs_cat_find_brec+0xe6/0x400 fs/hfs/catalog.c:194
 hfs_fill_super+0x1f28/0x23c0 fs/hfs/super.c:419
 mount_bdev+0x397/0x520 fs/super.c:1658
 hfs_mount+0x4d/0x60 fs/hfs/super.c:456
 legacy_get_tree+0x114/0x290 fs/fs_context.c:662
 vfs_get_tree+0xa7/0x570 fs/super.c:1779
 do_new_mount+0x71f/0x15e0 fs/namespace.c:3352
 path_mount+0x742/0x1f20 fs/namespace.c:3679
 do_mount fs/namespace.c:3692 [inline]
 __do_sys_mount fs/namespace.c:3898 [inline]
 __se_sys_mount+0x725/0x810 fs/namespace.c:3875
 __x64_sys_mount+0xe4/0x150 fs/namespace.c:3875
 do_syscall_64+0xd5/0x1f0
 entry_SYSCALL_64_after_hwframe+0x6d/0x75

Uninit was created at:
 slab_post_alloc_hook mm/slub.c:3804 [inline]
 slab_alloc_node mm/slub.c:3845 [inline]
 __do_kmalloc_node mm/slub.c:3965 [inline]
 __kmalloc+0x6e4/0x1000 mm/slub.c:3979
 kmalloc include/linux/slab.h:632 [inline]
 hfs_find_init+0x91/0x250 fs/hfs/bfind.c:21
 hfs_fill_super+0x1eba/0x23c0 fs/hfs/super.c:416
 mount_bdev+0x397/0x520 fs/super.c:1658
 hfs_mount+0x4d/0x60 fs/hfs/super.c:456
 legacy_get_tree+0x114/0x290 fs/fs_context.c:662
 vfs_get_tree+0xa7/0x570 fs/super.c:1779
 do_new_mount+0x71f/0x15e0 fs/namespace.c:3352
 path_mount+0x742/0x1f20 fs/namespace.c:3679
 do_mount fs/namespace.c:3692 [inline]
 __do_sys_mount fs/namespace.c:3898 [inline]
 __se_sys_mount+0x725/0x810 fs/namespace.c:3875
 __x64_sys_mount+0xe4/0x150 fs/namespace.c:3875
 do_syscall_64+0xd5/0x1f0
 entry_SYSCALL_64_after_hwframe+0x6d/0x75

CPU: 1 PID: 5494 Comm: syz-executor.0 Not tainted 6.8.0-syzkaller-11339-g741e9d668aa5 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024
=====================================================