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| author | Chuck Lever <chuck.lever@oracle.com> | 2017-08-01 17:59:58 +0200 |
|---|---|---|
| committer | J. Bruce Fields <bfields@redhat.com> | 2017-08-25 04:13:50 +0200 |
| commit | c1df609d9dcec5dcb89ee3091edc3671da1c9996 (patch) | |
| tree | b4c7ea7ca342e71533893e218910664324e8dc75 | |
| parent | sunrpc: Const-ify instances of struct svc_xprt_ops (diff) | |
| download | linux-c1df609d9dcec5dcb89ee3091edc3671da1c9996.tar.xz linux-c1df609d9dcec5dcb89ee3091edc3671da1c9996.zip | |
nfsd: Const-ify NFSv4 encoding and decoding ops arrays
Close an attack vector by moving the arrays of encoding and decoding
methods to read-only memory.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
| -rw-r--r-- | fs/nfsd/nfs4xdr.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 18b9c2fad29a..0c3b935d100f 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -1780,7 +1780,7 @@ nfsd4_decode_notsupp(struct nfsd4_compoundargs *argp, void *p) typedef __be32(*nfsd4_dec)(struct nfsd4_compoundargs *argp, void *); -static nfsd4_dec nfsd4_dec_ops[] = { +static const nfsd4_dec nfsd4_dec_ops[] = { [OP_ACCESS] = (nfsd4_dec)nfsd4_decode_access, [OP_CLOSE] = (nfsd4_dec)nfsd4_decode_close, [OP_COMMIT] = (nfsd4_dec)nfsd4_decode_commit, @@ -4224,7 +4224,7 @@ typedef __be32(* nfsd4_enc)(struct nfsd4_compoundres *, __be32, void *); * since we don't need to filter out obsolete ops as this is * done in the decoding phase. */ -static nfsd4_enc nfsd4_enc_ops[] = { +static const nfsd4_enc nfsd4_enc_ops[] = { [OP_ACCESS] = (nfsd4_enc)nfsd4_encode_access, [OP_CLOSE] = (nfsd4_enc)nfsd4_encode_close, [OP_COMMIT] = (nfsd4_enc)nfsd4_encode_commit, |