diff options
Diffstat (limited to 'crypto/af_alg.c')
| -rw-r--r-- | crypto/af_alg.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/crypto/af_alg.c b/crypto/af_alg.c index 8e0199394984d..dd0e5be4d8c07 100644 --- a/crypto/af_alg.c +++ b/crypto/af_alg.c @@ -705,8 +705,8 @@ void af_alg_pull_tsgl(struct sock *sk, size_t used, struct scatterlist *dst) * Assumption: caller created af_alg_count_tsgl(len) * SG entries in dst. */ - if (dst) { - /* reassign page to dst after offset */ + if (dst && plen) { + /* reassign page to dst */ get_page(page); sg_set_page(dst + j, page, plen, sg[i].offset); j++; @@ -1229,6 +1229,8 @@ int af_alg_get_rsgl(struct sock *sk, struct msghdr *msg, int flags, seglen = min_t(size_t, (maxsize - len), msg_data_left(msg)); + /* Never pin more pages than the remaining RX accounting budget. */ + seglen = min_t(size_t, seglen, af_alg_rcvbuf(sk)); if (list_empty(&areq->rsgl_list)) { rsgl = &areq->first_rsgl; |