Products
Linux Kernel
Source
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Tags
CVE-2021-47316 details
Published : May 21, 2024, 3:15 p.m.
Last Modified : May 21, 2024, 4:54 p.m.
Last Modified : May 21, 2024, 4:54 p.m.
Description
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.
CVSS Score
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
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Weakness
| Weakness | Name | Description |
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References
| URL | Source |
|---|---|
| https://git.kernel.org/stable/c/650e6f383a6eb40f7c0a010982a74ab4b6893870 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
| https://git.kernel.org/stable/c/ab1016d39cc052064e32f25ad18ef8767a0ee3b8 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 |
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