loop1: detected capacity change from 0 to 64 ===================================================== BUG: KMSAN: uninit-value in __hfs_ext_read_extent fs/hfs/extent.c:160 [inline] BUG: KMSAN: uninit-value in hfs_free_fork+0x6b4/0xa50 fs/hfs/extent.c:320 __hfs_ext_read_extent fs/hfs/extent.c:160 [inline] hfs_free_fork+0x6b4/0xa50 fs/hfs/extent.c:320 hfs_cat_delete+0x501/0xb90 fs/hfs/catalog.c:247 hfs_remove+0x16a/0x2f0 fs/hfs/dir.c:262 vfs_unlink+0x676/0xa90 fs/namei.c:4544 do_unlinkat+0x7a3/0xd60 fs/namei.c:4608 __do_sys_unlink fs/namei.c:4654 [inline] __se_sys_unlink fs/namei.c:4652 [inline] __x64_sys_unlink+0x76/0xa0 fs/namei.c:4652 x64_sys_call+0x2984/0x3c80 arch/x86/include/generated/asm/syscalls_64.h:88 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f Uninit was created at: slab_post_alloc_hook mm/slub.c:4144 [inline] slab_alloc_node mm/slub.c:4187 [inline] __do_kmalloc_node mm/slub.c:4317 [inline] __kmalloc_noprof+0x940/0x1250 mm/slub.c:4330 kmalloc_noprof include/linux/slab.h:906 [inline] hfs_find_init+0x91/0x250 fs/hfs/bfind.c:21 hfs_free_fork+0x3bb/0xa50 fs/hfs/extent.c:316 hfs_cat_delete+0x501/0xb90 fs/hfs/catalog.c:247 hfs_remove+0x16a/0x2f0 fs/hfs/dir.c:262 vfs_unlink+0x676/0xa90 fs/namei.c:4544 do_unlinkat+0x7a3/0xd60 fs/namei.c:4608 __do_sys_unlink fs/namei.c:4654 [inline] __se_sys_unlink fs/namei.c:4652 [inline] __x64_sys_unlink+0x76/0xa0 fs/namei.c:4652 x64_sys_call+0x2984/0x3c80 arch/x86/include/generated/asm/syscalls_64.h:88 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f CPU: 0 UID: 0 PID: 6017 Comm: syz.1.17 Not tainted 6.14.0-syzkaller-00826-g327ecdbc0fda #0 PREEMPT(undef) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 =====================================================