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CVE-2022-50007

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
18/06/2025
Last modified:
14/11/2025

Description

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> xfrm: fix refcount leak in __xfrm_policy_check()<br /> <br /> The issue happens on an error path in __xfrm_policy_check(). When the<br /> fetching process of the object `pols[1]` fails, the function simply<br /> returns 0, forgetting to decrement the reference count of `pols[0]`,<br /> which is incremented earlier by either xfrm_sk_policy_lookup() or<br /> xfrm_policy_lookup(). This may result in memory leaks.<br /> <br /> Fix it by decreasing the reference count of `pols[0]` in that path.

Impact

Vector 3.x
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 5.50 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
5.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 2.6.20 (including) 4.9.327 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.10 (including) 4.14.292 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.15 (including) 4.19.257 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 4.20 (including) 5.4.212 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.5 (including) 5.10.140 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.11 (including) 5.15.64 (excluding)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 5.16 (including) 5.19.6 (excluding)
cpe:2.3:o:linux:linux_kernel:2.6.19:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.19:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.19:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.19:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.19:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.19:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools