Hello, syzbot found the following issue on: HEAD commit: 30d2727189c5 kmsan: fix memcpy tests git tree: https://github.com/google/kmsan.git master console output: https://syzkaller.appspot.com/x/log.txt?x=15931383880000 kernel config: https://syzkaller.appspot.com/x/.config?x=a2144983ada8b4f3 dashboard link: https://syzkaller.appspot.com/bug?extid=5ce571007a695806e949 compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project.git 610139d2d9ce6746b3c617fb3e2f7886272d26ff), GNU ld (GNU Binutils for Debian) 2.35.2 userspace arch: i386 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/1e8c2d419c2e/disk-30d27271.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/9e8a728a72a9/vmlinux-30d27271.xz kernel image: https://storage.googleapis.com/syzbot-assets/89f71c80c707/bzImage-30d27271.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+5ce571007a695806e949@xxxxxxxxxxxxxxxxxxxxxxxxx hfs: keylen 9474 too large ===================================================== BUG: KMSAN: uninit-value in hfs_brec_find+0x671/0x9b0 fs/hfs/bfind.c:141 hfs_brec_find+0x671/0x9b0 fs/hfs/bfind.c:141 hfs_brec_read+0x3b/0x190 fs/hfs/bfind.c:165 hfs_cat_find_brec+0xfb/0x450 fs/hfs/catalog.c:194 hfs_fill_super+0x1f49/0x2400 fs/hfs/super.c:419 mount_bdev+0x508/0x840 fs/super.c:1401 hfs_mount+0x49/0x60 fs/hfs/super.c:456 legacy_get_tree+0x10c/0x280 fs/fs_context.c:610 vfs_get_tree+0xa1/0x500 fs/super.c:1531 do_new_mount+0x694/0x1580 fs/namespace.c:3040 path_mount+0x71a/0x1eb0 fs/namespace.c:3370 do_mount fs/namespace.c:3383 [inline] __do_sys_mount fs/namespace.c:3591 [inline] __se_sys_mount+0x734/0x840 fs/namespace.c:3568 __ia32_sys_mount+0xdf/0x140 fs/namespace.c:3568 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0xa2/0x100 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 do_SYSENTER_32+0x1b/0x20 arch/x86/entry/common.c:246 entry_SYSENTER_compat_after_hwframe+0x70/0x82 Local variable fd created at: hfs_fill_super+0x5e/0x2400 fs/hfs/super.c:381 mount_bdev+0x508/0x840 fs/super.c:1401 CPU: 0 PID: 5557 Comm: syz-executor.2 Not tainted 6.1.0-rc8-syzkaller-64144-g30d2727189c5 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 ===================================================== --- 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.
