Back
CVE-2022-50007
xfrm: fix refcount leak in __xfrm_policy_check()
Medium5.5EPSS 0.25%
- Published
- Updated
- Reserved
- Assigned by
- Linux
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.25% · top 83% of all CVEs (5 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected 134b0fc544ba062498451611cb6f3e4454221b3d – < 18e6b6e2555c93f5ca09f2b85ef1fa025c8accea
- affected 134b0fc544ba062498451611cb6f3e4454221b3d – < 8f94b933103ee1bda119543369cc18a1be5536db
- affected 134b0fc544ba062498451611cb6f3e4454221b3d – < 0769491a8acd3e85ca4c3f65080eac2c824262df
- affected 134b0fc544ba062498451611cb6f3e4454221b3d – < 63da7a2bbf3f28094920e0b8a17d2571a9bd842d
- affected 134b0fc544ba062498451611cb6f3e4454221b3d – < 1305d7d4f35ca6f214a2d23b075aa6a924cff3be
- affected 134b0fc544ba062498451611cb6f3e4454221b3d – < 26ad2398fe4984f4f6f930bcb3bc9047fa77265b
- affected 134b0fc544ba062498451611cb6f3e4454221b3d – < d66c052879791313f90c0584420f196a038fb8b8
- affected 134b0fc544ba062498451611cb6f3e4454221b3d – < 9c9cb23e00ddf45679b21b4dacc11d1ae7961ebe
- affected 2.6.19
- unaffected < 2.6.19
- unaffected 4.9.327 – ≤ 4.9.*
- unaffected 4.14.292 – ≤ 4.14.*
- unaffected 4.19.257 – ≤ 4.19.*
- unaffected 5.4.212 – ≤ 5.4.*
- unaffected 5.10.140 – ≤ 5.10.*
- unaffected 5.15.64 – ≤ 5.15.*
- unaffected 5.19.6 – ≤ 5.19.*
- unaffected 6.0 – ≤ *
References (8)
- https://git.kernel.org/stable/c/18e6b6e2555c93f5ca09f2b85ef1fa025c8accea (opens in a new tab)
- https://git.kernel.org/stable/c/8f94b933103ee1bda119543369cc18a1be5536db (opens in a new tab)
- https://git.kernel.org/stable/c/0769491a8acd3e85ca4c3f65080eac2c824262df (opens in a new tab)
- https://git.kernel.org/stable/c/63da7a2bbf3f28094920e0b8a17d2571a9bd842d (opens in a new tab)
- https://git.kernel.org/stable/c/1305d7d4f35ca6f214a2d23b075aa6a924cff3be (opens in a new tab)
- https://git.kernel.org/stable/c/26ad2398fe4984f4f6f930bcb3bc9047fa77265b (opens in a new tab)
- https://git.kernel.org/stable/c/d66c052879791313f90c0584420f196a038fb8b8 (opens in a new tab)
- https://git.kernel.org/stable/c/9c9cb23e00ddf45679b21b4dacc11d1ae7961ebe (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2022-50007)Record last updated .