Messages in this thread |  | | Date | Tue, 3 Dec 2019 16:33:26 -0500 (EST) | From | Nicolas Pitre <> | Subject | Re: KASAN: slab-out-of-bounds Read in vcs_scr_readw |
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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
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