# CVE-2024-46690: linux: In the Linux kernel, the following vulnerability has been resolved:  nfsd: fix nfsd4_deleg_getattr_conflict in presen...

CVE-2024-46690 is fixed in linux on 1 platform, first by DEBIAN-CVE-2024-46690, released September 13, 2024. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2024-46690
- Priority: Routine
- CVSS: 5.5 (medium)
- EPSS: 0.0040
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 13, 2024

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 13.5 (trixie) | 6.10.9-1 | [DEBIAN-CVE-2024-46690](https://patchblox.com/security/data/fix/linux/debian-cve-2024-46690.md) | Sep 13, 2024 |
| Linux | linux Debian 14 | 6.10.9-1 | [DEBIAN-CVE-2024-46690](https://patchblox.com/security/data/fix/linux/debian-cve-2024-46690.md) | Sep 13, 2024 |

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