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(parent: 5393f78) | patch
crypto: authenc - Fix zero-length IV crash
authorHerbert Xu <herbert@gondor.apana.org.au>
Tue, 13 Jan 2009 00:26:18 +0000 (11:26 +1100)
committerHerbert Xu <herbert@gondor.apana.org.au>
Thu, 15 Jan 2009 04:33:49 +0000 (15:33 +1100)
commit29b37f42127f7da511560a40ea74f5047da40c13
treefa6cbeb329cc0d564511a3bd6f4d7172d468494btree | snapshot
parent5393f780277165f282a37ed82dd878159ec9dad5commit | diff
crypto: authenc - Fix zero-length IV crash

As it is if an algorithm with a zero-length IV is used (e.g.,
NULL encryption) with authenc, authenc may generate an SG entry
of length zero, which will trigger a BUG check in the hash layer.

This patch fixes it by skipping the IV SG generation if the IV
size is zero.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
crypto/authenc.c diff | blob | history
Full containers within linux kernel