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| author | Mathias Krause <minipli@googlemail.com> | 2016-06-22 20:29:37 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-07-11 09:31:12 -0700 |
| commit | ce1abd2563d07c1042a6e156fdbaa73e1e70b75f (patch) | |
| tree | 65c54bb5b43959e2e6852a87ec87f097b80ccff8 /crypto/xor.c | |
| parent | 5ae68873134c30bf83159b6d335b2f996c60346b (diff) | |
crypto: user - re-add size check for CRYPTO_MSG_GETALG
commit 055ddaace03580455a7b7dbea8e93d62acee61fc upstream.
Commit 9aa867e46565 ("crypto: user - Add CRYPTO_MSG_DELRNG")
accidentally removed the minimum size check for CRYPTO_MSG_GETALG
netlink messages. This allows userland to send a truncated
CRYPTO_MSG_GETALG message as short as a netlink header only making
crypto_report() operate on uninitialized memory by accessing data
beyond the end of the netlink message.
Fix this be re-adding the minimum required size of CRYPTO_MSG_GETALG
messages to the crypto_msg_min[] array.
Fixes: 9aa867e46565 ("crypto: user - Add CRYPTO_MSG_DELRNG")
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'crypto/xor.c')
0 files changed, 0 insertions, 0 deletions