This is a note to let you know that I've just added the patch titled lockd: Update the NLMv1 FREE_ALL arguments decoder to use struct xdr_stream to the 5.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: lockd-update-the-nlmv1-free_all-arguments-decoder-to.patch and it can be found in the queue-5.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 9ff5f7c0b510da6066abf53971adc67fc517d342 Author: Chuck Lever <chuck.lever@xxxxxxxxxx> Date: Thu Jun 3 16:51:46 2021 -0400 lockd: Update the NLMv1 FREE_ALL arguments decoder to use struct xdr_stream [ Upstream commit 14e105256b9dcdf50a003e2e9a0da77e06770a4b ] Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx> Signed-off-by: J. Bruce Fields <bfields@xxxxxxxxxx> Signed-off-by: Chuck Lever <chuck.lever@xxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/fs/lockd/xdr.c b/fs/lockd/xdr.c index c496f18eff06e..091c8c463ab40 100644 --- a/fs/lockd/xdr.c +++ b/fs/lockd/xdr.c @@ -316,6 +316,21 @@ nlmsvc_decode_shareargs(struct svc_rqst *rqstp, __be32 *p) return 1; } +int +nlmsvc_decode_notify(struct svc_rqst *rqstp, __be32 *p) +{ + struct xdr_stream *xdr = &rqstp->rq_arg_stream; + struct nlm_args *argp = rqstp->rq_argp; + struct nlm_lock *lock = &argp->lock; + + if (!svcxdr_decode_string(xdr, &lock->caller, &lock->len)) + return 0; + if (xdr_stream_decode_u32(xdr, &argp->state) < 0) + return 0; + + return 1; +} + int nlmsvc_encode_testres(struct svc_rqst *rqstp, __be32 *p) { @@ -349,19 +364,6 @@ nlmsvc_encode_res(struct svc_rqst *rqstp, __be32 *p) return xdr_ressize_check(rqstp, p); } -int -nlmsvc_decode_notify(struct svc_rqst *rqstp, __be32 *p) -{ - struct nlm_args *argp = rqstp->rq_argp; - struct nlm_lock *lock = &argp->lock; - - if (!(p = xdr_decode_string_inplace(p, &lock->caller, - &lock->len, NLM_MAXSTRLEN))) - return 0; - argp->state = ntohl(*p++); - return xdr_argsize_check(rqstp, p); -} - int nlmsvc_encode_void(struct svc_rqst *rqstp, __be32 *p) {