Hello, syzbot found the following issue on: HEAD commit: b9158815de52 Merge tag 'char-misc-6.9-rc7' of git://git.ke.. git tree: upstream console+strace: https://syzkaller.appspot.com/x/log.txt?x=15154bff180000 kernel config: https://syzkaller.appspot.com/x/.config?x=bbf567496022057b dashboard link: https://syzkaller.appspot.com/bug?extid=2e6fb1f89ce5e13cd02d compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1262fb38980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1530bdc4980000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/7886d49e8de8/disk-b9158815.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/7909f40ff65c/vmlinux-b9158815.xz kernel image: https://storage.googleapis.com/syzbot-assets/7641fb86043d/bzImage-b9158815.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/aeab32d02708/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+2e6fb1f89ce5e13cd02d@xxxxxxxxxxxxxxxxxxxxxxxxx ===================================================== 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+0x676/0xa30 fs/namei.c:4335 do_unlinkat+0x823/0xe10 fs/namei.c:4399 __do_sys_unlink fs/namei.c:4447 [inline] __se_sys_unlink fs/namei.c:4445 [inline] __x64_sys_unlink+0x78/0xb0 fs/namei.c:4445 x64_sys_call+0x31c7/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:88 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/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: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_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+0x676/0xa30 fs/namei.c:4335 do_unlinkat+0x823/0xe10 fs/namei.c:4399 __do_sys_unlink fs/namei.c:4447 [inline] __se_sys_unlink fs/namei.c:4445 [inline] __x64_sys_unlink+0x78/0xb0 fs/namei.c:4445 x64_sys_call+0x31c7/0x3b50 arch/x86/include/generated/asm/syscalls_64.h:88 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcf/0x1e0 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f CPU: 1 PID: 5043 Comm: syz-executor323 Not tainted 6.9.0-rc6-syzkaller-00290-gb9158815de52 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 ===================================================== --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
