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.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | linux | < 6.1.94-1 | linux_6.1.94-1_all.deb |
Debian | 11 | all | linux | < 5.10.218-1 | linux_5.10.218-1_all.deb |
Debian | 999 | all | linux | < 6.9.7-1 | linux_6.9.7-1_all.deb |
Debian | 13 | all | linux | < 6.8.12-1 | linux_6.8.12-1_all.deb |