crypto: qce - fix uaf on qce_ahash_register_one
authorChengfeng Ye <cyeaa@connect.ust.hk>
Thu, 4 Nov 2021 13:38:31 +0000 (06:38 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Thu, 27 Jan 2022 10:03:14 +0000 (11:03 +0100)
commit561030c55120893b4d8c939c7891907144fb0bee
treece28308332598dc8a30348c5a1c5253d8cbaeb65
parentcf984b11cdecf54816540de99dcca559ff8fab7d
crypto: qce - fix uaf on qce_ahash_register_one

[ Upstream commit b4cb4d31631912842eb7dce02b4350cbb7562d5e ]

Pointer base points to sub field of tmpl, it
is dereferenced after tmpl is freed. Fix
this by accessing base before free tmpl.

Fixes: ec8f5d8f ("crypto: qce - Qualcomm crypto engine driver")
Signed-off-by: Chengfeng Ye <cyeaa@connect.ust.hk>
Acked-by: Thara Gopinath <thara.gopinath@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/crypto/qce/sha.c