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| author | Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp> | 2020-08-31 19:37:00 +0900 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-09-23 08:44:25 +0200 |
| commit | 80bca1ca2f1c6cb2f48c2bf3060567337d197f56 (patch) | |
| tree | c4eca50b7be0db9b93cd9aa12a6ec6af4b6f6b53 /net/lapb/lapb_timer.c | |
| parent | bfa791852a0d1acfe5805a9f6abc755772b5b460 (diff) | |
video: fbdev: fix OOB read in vga_8planes_imageblit()
commit bd018a6a75cebb511bb55a0e7690024be975fe93 upstream.
syzbot is reporting OOB read at vga_8planes_imageblit() [1], for
"cdat[y] >> 4" can become a negative value due to "const char *cdat".
[1] https://syzkaller.appspot.com/bug?id=0d7a0da1557dcd1989e00cb3692b26d4173b4132
Reported-by: syzbot <syzbot+69fbd3e01470f169c8c4@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/90b55ec3-d5b0-3307-9f7c-7ff5c5fd6ad3@i-love.sakura.ne.jp
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/lapb/lapb_timer.c')
0 files changed, 0 insertions, 0 deletions