From cc4d110ec824d3f05f95b1f705158afc6fb08773 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Fri, 21 Jul 2017 16:42:37 +0100 Subject: [PATCH] crypto: scompress - free partially allocated scratch buffers on failure When allocating the per-CPU scratch buffers, we allocate the source and destination buffers separately, but bail immediately if the second allocation fails, without freeing the first one. Fix that. Signed-off-by: Ard Biesheuvel Signed-off-by: Herbert Xu --- crypto/scompress.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/crypto/scompress.c b/crypto/scompress.c index 0b40d991d65f..2c07648305ad 100644 --- a/crypto/scompress.c +++ b/crypto/scompress.c @@ -125,8 +125,11 @@ static int crypto_scomp_alloc_all_scratches(void) if (!scomp_src_scratches) return -ENOMEM; scomp_dst_scratches = crypto_scomp_alloc_scratches(); - if (!scomp_dst_scratches) + if (!scomp_dst_scratches) { + crypto_scomp_free_scratches(scomp_src_scratches); + scomp_src_scratches = NULL; return -ENOMEM; + } } return 0; } -- 2.30.2