diff options
| author | Herbert Xu <herbert@gondor.apana.org.au> | 2025-09-30 16:08:34 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-10-12 13:01:57 +0200 |
| commit | 15ea288e1dc8ee90d9a04bb197f22599240e42c4 (patch) | |
| tree | 1f96ed9c03a139cd9521ad6444d4290f41add60b | |
| parent | 75fcc07c8c1b383f14e47a419c3f3b565ae22f06 (diff) | |
| download | linux-15ea288e1dc8ee90d9a04bb197f22599240e42c4.tar.gz linux-15ea288e1dc8ee90d9a04bb197f22599240e42c4.tar.bz2 linux-15ea288e1dc8ee90d9a04bb197f22599240e42c4.zip | |
crypto: zstd - Fix compression bug caused by truncation
commit 81c1a15eb4a273eabedfcc28eb6afa4b50cb8a46 upstream.
Use size_t for the return value of zstd_compress_cctx as otherwise
negative errors will be truncated to a positive value.
Reported-by: Han Xu <han.xu@nxp.com>
Fixes: f5ad93ffb541 ("crypto: zstd - convert to acomp")
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Reviewed-by: David Sterba <dsterba@suse.com>
Tested-by: Han Xu <han.xu@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | crypto/zstd.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/crypto/zstd.c b/crypto/zstd.c index c2a19cb0879d..ac318d333b68 100644 --- a/crypto/zstd.c +++ b/crypto/zstd.c @@ -83,7 +83,7 @@ static void zstd_exit(struct crypto_acomp *acomp_tfm) static int zstd_compress_one(struct acomp_req *req, struct zstd_ctx *ctx, const void *src, void *dst, unsigned int *dlen) { - unsigned int out_len; + size_t out_len; ctx->cctx = zstd_init_cctx(ctx->wksp, ctx->wksp_size); if (!ctx->cctx) |