On Sun, 30 Oct 2022 12:57:43 -0700 syzbot <syzbot+a7f196a1dbf5e2c70568@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: 4d48f589d294 Add linux-next specific files for 20221021 Thanks. > git tree: linux-next > console+strace: https://syzkaller.appspot.com/x/log.txt?x=165e12da880000 > kernel config: https://syzkaller.appspot.com/x/.config?x=2c4b7d600a5739a6 > dashboard link: https://syzkaller.appspot.com/bug?extid=a7f196a1dbf5e2c70568 > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11f10ff6880000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=145f1ff2880000 does memcpy((void*)0x20000100, "mpol=", 5); syscall(__NR_mount, 0ul, 0x20000040ul, 0x20000080ul, 0ul, 0x20000100ul); so I assume we've fallen afoul of the patch "vfs: parse: deal with zero length string value" (https://lkml.kernel.org/r/166365878918.39016.12757946948158123324.stgit@xxxxxxxxxxxxxxxxx). I have dropped that patch today so hopefully we're all good now. > > ... >
