Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: xfrm: fix refcount leak in __xfrm_policy_check() The issue happens on an error path in __xfrm_policy_check(). When the fetching process of the object `pols[1]` fails, the function simply returns 0, forgetting to decrement the reference count of `pols[0]`, which is incremented earlier by either xfrm_sk_policy_lookup() or xfrm_policy_lookup(). This may result in memory leaks. Fix it by decreasing the reference count of `pols[0]` in that path.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 2.6.20, < 4.9.327 |
References
- https://git.kernel.org/stable/c/0769491a8acd3e85ca4c3f65080eac2c824262dfPatch
- https://git.kernel.org/stable/c/1305d7d4f35ca6f214a2d23b075aa6a924cff3bePatch
- https://git.kernel.org/stable/c/18e6b6e2555c93f5ca09f2b85ef1fa025c8acceaPatch
- https://git.kernel.org/stable/c/26ad2398fe4984f4f6f930bcb3bc9047fa77265bPatch
- https://git.kernel.org/stable/c/63da7a2bbf3f28094920e0b8a17d2571a9bd842dPatch
- https://git.kernel.org/stable/c/8f94b933103ee1bda119543369cc18a1be5536dbPatch
- https://git.kernel.org/stable/c/9c9cb23e00ddf45679b21b4dacc11d1ae7961ebePatch
- https://git.kernel.org/stable/c/d66c052879791313f90c0584420f196a038fb8b8Patch
FAQ
What is CVE-2022-50007?
CVE-2022-50007 is a vulnerability with a CVSS score of 5.5 (MEDIUM). In the Linux kernel, the following vulnerability has been resolved: xfrm: fix refcount leak in __xfrm_policy_check() The issue happens on an error path in __xfrm_policy_check(). When the fetching pr...
How severe is CVE-2022-50007?
CVE-2022-50007 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-50007?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.