CVE-2024-46690
- Source
- https://cve.org/CVERecord?id=CVE-2024-46690
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-46690.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2024-46690
- Downstream
- Published
- 2024-09-13T05:29:20Z
- Modified
- 2026-08-12T03:51:35Z
- Severity
-
- 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- nfsd: fix nfsd4_deleg_getattr_conflict in presence of third party lease
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
nfsd: fix nfsd4_deleg_getattr_conflict in presence of third party lease
It is not safe to dereference fl->c.flc_owner without first confirming fl->fl_lmops is the expected manager. nfsd4_deleg_getattr_conflict() tests fl_lmops but largely ignores the result and assumes that flc_owner is an nfs4_delegation anyway. This is wrong.
With this patch we restore the "!= &nfsd_lease_mng_ops" case to behave as it did before the change mentioned below. This is the same as the current code, but without any reference to a possible delegation.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46690.json" }- References
-
- https://git.kernel.org/stable/c/1b46a871e980e3daa16fd5e77539966492e8910a
- https://git.kernel.org/stable/c/40927f3d0972bf86357a32a5749be71a551241b6
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46690.json
- https://nvd.nist.gov/vuln/detail/CVE-2024-46690
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git