crypto: scomp - fix req->dst buffer overflow

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[ Upstream commit 744e188592 ]

The req->dst buffer size should be checked before copying from the
scomp_scratch->dst to avoid req->dst buffer overflow problem.

Fixes: 1ab53a77b7 ("crypto: acomp - add driver-side scomp interface")
Reported-by: syzbot+3eff5e51bf1db122a16e@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/0000000000000b05cd060d6b5511@google.com/
Signed-off-by: Chengming Zhou <zhouchengming@bytedance.com>
Reviewed-by: Barry Song <v-songbaohua@oppo.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

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Chengming Zhou 2023-12-27 09:35:23 +00:00 • committed by Greg Kroah-Hartman

parent b1eb1f817f

commit 71c6670f9f

1 changed files with 6 additions and 0 deletions

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crypto/scompress.c

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