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nfsd: fix access checking for NLM under XPRTSEC policies

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When an export policy with xprtsec policy is set with "tls"
and/or "mtls", but an NFS client is doing a v3 xprtsec=tls
mount, then NLM locking calls fail with an error because
there is currently no support for NLM with TLS.

Until such support is added, allow NLM calls under TLS-secured
policy.

Fixes: 4cc9b9f2bf ("nfsd: refine and rename NFSD_MAY_LOCK")
Cc: stable@vger.kernel.org
Signed-off-by: Olga Kornievskaia <okorniev@redhat.com>
Reviewed-by: NeilBrown <neil@brown.name>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
This commit is contained in:
Olga Kornievskaia 2025-03-21 20:13:04 -04:00 committed by Chuck Lever
parent c447d2ac98
commit 0813c5f012
1 changed files with 2 additions and 1 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

1
fs/nfsd/export.c
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@ -1124,6 +1124,7 @@ __be32 check_nfsd_access(struct svc_export *exp, struct svc_rqst *rqstp,
test_bit(XPT_PEER_AUTH, &xprt->xpt_flags))
goto ok;
}
if (!may_bypass_gss)
goto denied;
ok: