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author | J. Bruce Fields <bfields@fieldses.org> | 2006-03-20 23:23:11 -0500 |
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committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-03-20 23:23:11 -0500 |
commit | 9e57b302cf0f27063184196def620f39ca7a5fc6 (patch) | |
tree | 3b154f314dfad8c4350af10b87ab7f4759df3f6d /net/sunrpc/auth_gss/gss_spkm3_seal.c | |
parent | 7a1218a277c45cba1fb8d7089407a1769c645c43 (diff) | |
download | op-kernel-dev-9e57b302cf0f27063184196def620f39ca7a5fc6.zip op-kernel-dev-9e57b302cf0f27063184196def620f39ca7a5fc6.tar.gz |
SUNRPC,RPCSEC_GSS: remove unnecessary kmalloc of a checksum
Remove unnecessary kmalloc of temporary space to hold the md5 result; it's
small enough to just put on the stack.
This code may be called to process rpc's necessary to perform writes, so
there's a potential deadlock whenever we kmalloc() here. After this a
couple kmalloc()'s still remain, to be removed soon.
This also fixes a rare double-free on error noticed by coverity.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'net/sunrpc/auth_gss/gss_spkm3_seal.c')
-rw-r--r-- | net/sunrpc/auth_gss/gss_spkm3_seal.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/net/sunrpc/auth_gss/gss_spkm3_seal.c b/net/sunrpc/auth_gss/gss_spkm3_seal.c index 86fbf7c..18c7862 100644 --- a/net/sunrpc/auth_gss/gss_spkm3_seal.c +++ b/net/sunrpc/auth_gss/gss_spkm3_seal.c @@ -57,7 +57,8 @@ spkm3_make_token(struct spkm3_ctx *ctx, { s32 checksum_type; char tokhdrbuf[25]; - struct xdr_netobj md5cksum = {.len = 0, .data = NULL}; + char cksumdata[16]; + struct xdr_netobj md5cksum = {.len = 0, .data = cksumdata}; struct xdr_netobj mic_hdr = {.len = 0, .data = tokhdrbuf}; int tokenlen = 0; unsigned char *ptr; @@ -115,13 +116,11 @@ spkm3_make_token(struct spkm3_ctx *ctx, dprintk("RPC: gss_spkm3_seal: SPKM_WRAP_TOK not supported\n"); goto out_err; } - kfree(md5cksum.data); /* XXX need to implement sequence numbers, and ctx->expired */ return GSS_S_COMPLETE; out_err: - kfree(md5cksum.data); token->data = NULL; token->len = 0; return GSS_S_FAILURE; |