From: Tetsuo Handa <penguin-ker...@i-love.sakura.ne.jp> Date: Thu, May 16, 2019 at 3:13 PM To: syzbot Cc: <gli...@google.com>, <jmor...@namei.org>, <linux-kernel@vger.kernel.org>, <linux-security-mod...@vger.kernel.org>, <se...@hallyn.com>, <syzkaller-b...@googlegroups.com>, <taked...@nttdata.co.jp>
> On 2019/05/16 21:58, syzbot wrote: > > Hello, > > > > syzbot found the following crash on: > > > > HEAD commit: 3b955a40 usb-fuzzer: main usb gadget fuzzer driver > > git tree: kmsan > > console output: https://syzkaller.appspot.com/x/log.txt?x=1027e608a00000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=602468164ccdc30a > > dashboard link: https://syzkaller.appspot.com/bug?extid=1018d578c410f9f37261 > > compiler: clang version 9.0.0 (/home/glider/llvm/clang > > 06d00afa61eef8f7f501ebdb4e8612ea43ec2d78) > > > > Unfortunately, I don't have any reproducer for this crash yet. > > This should be already fixed in linux.git. > > #syz fix: tomoyo: Check address length before reading address family > > commit e6193f78bb689f3f424559bb45f4a091c8b314df > Author: Tetsuo Handa <penguin-ker...@i-love.sakura.ne.jp> > Date: Fri Apr 12 19:59:36 2019 +0900 > > tomoyo: Check address length before reading address family > > KMSAN will complain if valid address length passed to bind()/connect()/ > sendmsg() is shorter than sizeof("struct sockaddr"->sa_family) bytes. > > Signed-off-by: Tetsuo Handa <penguin-ker...@i-love.sakura.ne.jp> > Signed-off-by: James Morris <jamor...@linux.microsoft.com> Apparently the fix didn't make it to 5.1, I'll cherry-pick it to KMSAN tree. OOC, how did you know about this bug? > -- > You received this message because you are subscribed to the Google Groups > "syzkaller-bugs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to syzkaller-bugs+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/syzkaller-bugs/2b0b9d18-6773-f2dc-ecb2-9f8782d0962a%40i-love.sakura.ne.jp. > For more options, visit https://groups.google.com/d/optout. -- Alexander Potapenko Software Engineer Google Germany GmbH Erika-Mann-Straße, 33 80636 München Geschäftsführer: Paul Manicle, Halimah DeLaine Prado Registergericht und -nummer: Hamburg, HRB 86891 Sitz der Gesellschaft: Hamburg
