lkml.org 
[lkml]   [2019]   [Dec]   [3]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: KASAN: slab-out-of-bounds Read in vcs_scr_readw
On Tue, 3 Dec 2019, syzbot wrote:

> Hello,
>
> syzbot found the following crash on:
>
> HEAD commit: 596cf45c Merge branch 'akpm' (patches from Andrew)
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=14c1d196e00000
> kernel config: https://syzkaller.appspot.com/x/.config?x=8eb54eee6e6ca4a7
> dashboard link: https://syzkaller.appspot.com/bug?extid=7d027845265d531ba506
> compiler: gcc (GCC) 9.0.0 20181231 (experimental)
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11c6090ee00000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13821b7ae00000
>
> The bug was bisected to:
>
> commit d21b0be246bf3bbf569e6e239f56abb529c7154e
> Author: Nicolas Pitre <nicolas.pitre@linaro.org>
> Date: Wed Jun 27 03:56:41 2018 +0000
>
> vt: introduce unicode mode for /dev/vcs
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1292fbf2e00000
> final crash: https://syzkaller.appspot.com/x/report.txt?x=1192fbf2e00000
> console output: https://syzkaller.appspot.com/x/log.txt?x=1692fbf2e00000
>
> IMPORTANT: if you fix the bug, please add the following tag to the commit:
> Reported-by: syzbot+7d027845265d531ba506@syzkaller.appspotmail.com
> Fixes: d21b0be246bf ("vt: introduce unicode mode for /dev/vcs")

This is most likely the same issue that was fixed and queued for
mainline already. The fix is accessible as commit 0c9acb1af77a in the
linux-next tree.


Nicolas

\
 
 \ /
  Last update: 2019-12-03 22:33    [W:0.040 / U:5.072 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site