Messages in this thread | | | Subject | Re: KMSAN: uninit-value in tomoyo_check_inet_address | From | Tetsuo Handa <> | Date | Thu, 16 May 2019 22:13:04 +0900 |
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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-kernel@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-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jamorris@linux.microsoft.com>
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