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CVE-2021-47316

Published: 2024-05-21T15:15Z
Last Modified: 2024-12-24T16:28Z
Source: MITRE CVE List
License: MITRE-CVE-TOS
In the Linux kernel, the following vulnerability has been resolved: nfsd: fix NULL dereference in nfs3svc_encode_getaclres In error cases the dentry may be NULL. Before 20798dfe249a, the encoder also checked dentry and d_really_is_positive(dentry), but that looks like overkill to me--zero status should be enough to guarantee a positive dentry. This isn't the first time we've seen an error-case NULL dereference hidden in the initialization of a local variable in an xdr encoder. But I went back through the other recent rewrites and didn't spot any similar bugs. > MITRE Terms of Use apply – see LICENSE‑MITRE.txt