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authorLinus Torvalds <torvalds@linux-foundation.org>2018-01-05 12:10:06 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2018-01-05 12:10:06 -0800
commit64648a5fcabf46000a496c41c92c5c0f16be78ed (patch)
tree12e706ccc1a2e29c0fc6400589ac2a8c1c414ac3 /crypto/af_alg.c
parentd8887f1c7289848e74c92bd4322789a9cd7de699 (diff)
parent2973633e9f09311e849f975d969737af81a521ff (diff)
downloadlinux-64648a5fcabf46000a496c41c92c5c0f16be78ed.tar.bz2
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu: "This fixes the following issues: - racy use of ctx->rcvused in af_alg - algif_aead crash in chacha20poly1305 - freeing bogus pointer in pcrypt - build error on MIPS in mpi - memory leak in inside-secure - memory overwrite in inside-secure - NULL pointer dereference in inside-secure - state corruption in inside-secure - build error without CRYPTO_GF128MUL in chelsio - use after free in n2" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: inside-secure - do not use areq->result for partial results crypto: inside-secure - fix request allocations in invalidation path crypto: inside-secure - free requests even if their handling failed crypto: inside-secure - per request invalidation lib/mpi: Fix umul_ppmm() for MIPS64r6 crypto: pcrypt - fix freeing pcrypt instances crypto: n2 - cure use after free crypto: af_alg - Fix race around ctx->rcvused by making it atomic_t crypto: chacha20poly1305 - validate the digest size crypto: chelsio - select CRYPTO_GF128MUL
Diffstat (limited to 'crypto/af_alg.c')
-rw-r--r--crypto/af_alg.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/crypto/af_alg.c b/crypto/af_alg.c
index 444a387df219..35d4dcea381f 100644
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -664,7 +664,7 @@ void af_alg_free_areq_sgls(struct af_alg_async_req *areq)
unsigned int i;
list_for_each_entry_safe(rsgl, tmp, &areq->rsgl_list, list) {
- ctx->rcvused -= rsgl->sg_num_bytes;
+ atomic_sub(rsgl->sg_num_bytes, &ctx->rcvused);
af_alg_free_sg(&rsgl->sgl);
list_del(&rsgl->list);
if (rsgl != &areq->first_rsgl)
@@ -1163,7 +1163,7 @@ int af_alg_get_rsgl(struct sock *sk, struct msghdr *msg, int flags,
areq->last_rsgl = rsgl;
len += err;
- ctx->rcvused += err;
+ atomic_add(err, &ctx->rcvused);
rsgl->sg_num_bytes = err;
iov_iter_advance(&msg->msg_iter, err);
}