On Thu 28-12-23 02:34:28, syzbot wrote: > syzbot found the following issue on: > > HEAD commit: 861deac3b092 Linux 6.7-rc7 > git tree: upstream > console+strace: https://syzkaller.appspot.com/x/log.txt?x=16e0171ae80000 > kernel config: https://syzkaller.appspot.com/x/.config?x=e0c7078a6b901aa3 > dashboard link: https://syzkaller.appspot.com/bug?extid=d31185aa54170f7fc1f5 > 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=17561579e80000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1277e7a5e80000 > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/0ea60ee8ed32/disk-861deac3.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/6d69fdc33021/vmlinux-861deac3.xz > kernel image: https://storage.googleapis.com/syzbot-assets/f0158750d452/bzImage-861deac3.xz > mounted in repro: https://storage.googleapis.com/syzbot-assets/f35551f8a991/mount_0.gz > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > Reported-by: syzbot+d31185aa54170f7fc1f5@xxxxxxxxxxxxxxxxxxxxxxxxx > > ======================================================= > UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) > ===================================================== > BUG: KMSAN: uninit-value in crc_itu_t_byte include/linux/crc-itu-t.h:22 [inline] > BUG: KMSAN: uninit-value in crc_itu_t+0x287/0x2e0 lib/crc-itu-t.c:60 > crc_itu_t_byte include/linux/crc-itu-t.h:22 [inline] > crc_itu_t+0x287/0x2e0 lib/crc-itu-t.c:60 > udf_update_tag+0x5c/0x2a0 fs/udf/misc.c:261 > udf_rename+0x13dd/0x16a0 fs/udf/namei.c:877 > vfs_rename+0x1a79/0x1fa0 fs/namei.c:4844 > do_renameat2+0x1571/0x1ca0 fs/namei.c:4996 > __do_sys_rename fs/namei.c:5042 [inline] > __se_sys_rename fs/namei.c:5040 [inline] > __x64_sys_rename+0xec/0x140 fs/namei.c:5040 > do_syscall_x64 arch/x86/entry/common.c:52 [inline] > do_syscall_64+0x44/0x110 arch/x86/entry/common.c:83 > entry_SYSCALL_64_after_hwframe+0x63/0x6b > > Local variable diriter created at: > udf_rename+0xbb/0x16a0 fs/udf/namei.c:768 > vfs_rename+0x1a79/0x1fa0 fs/namei.c:4844 > > CPU: 0 PID: 5011 Comm: syz-executor409 Not tainted 6.7.0-rc7-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 > ===================================================== > #syz test: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 6ba59ff4227927d3a8530fc2973b80e94b54d58f Honza -- Jan Kara <jack@xxxxxxxx> SUSE Labs, CR
