path: root/fs
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authorMathias Krause <>2016-06-22 20:29:37 +0200
committerHerbert Xu <>2016-06-23 17:39:25 +0800
commit055ddaace03580455a7b7dbea8e93d62acee61fc (patch)
treecbeb3d328b71c83c4d84dec131abec09d2ccff7f /fs
parent19ced623db2fe91604d69f7d86b03144c5107739 (diff)
crypto: user - re-add size check for CRYPTO_MSG_GETALG
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") Cc: # v4.2 Signed-off-by: Mathias Krause <> Cc: Steffen Klassert <> Signed-off-by: Herbert Xu <>
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