CVE-2022-50007

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2022-50007
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.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/0769491a8acd3e85ca4c3f65080eac2c824262df Patch
https://git.kernel.org/stable/c/1305d7d4f35ca6f214a2d23b075aa6a924cff3be Patch
https://git.kernel.org/stable/c/18e6b6e2555c93f5ca09f2b85ef1fa025c8accea Patch
https://git.kernel.org/stable/c/26ad2398fe4984f4f6f930bcb3bc9047fa77265b Patch
https://git.kernel.org/stable/c/63da7a2bbf3f28094920e0b8a17d2571a9bd842d Patch
https://git.kernel.org/stable/c/8f94b933103ee1bda119543369cc18a1be5536db Patch
https://git.kernel.org/stable/c/9c9cb23e00ddf45679b21b4dacc11d1ae7961ebe Patch
https://git.kernel.org/stable/c/d66c052879791313f90c0584420f196a038fb8b8 Patch
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
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:*:*:*:*:*:*
History

14 Nov 2025, 16:59

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:6.0:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.19:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.19:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.19:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.0:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.19:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.19:-:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:2.6.19:rc4:*:*:*:*:*:*
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CWE NVD-CWE-Other
First Time Linux
Linux linux Kernel
References () https://git.kernel.org/stable/c/0769491a8acd3e85ca4c3f65080eac2c824262df - () https://git.kernel.org/stable/c/0769491a8acd3e85ca4c3f65080eac2c824262df - Patch
References () https://git.kernel.org/stable/c/1305d7d4f35ca6f214a2d23b075aa6a924cff3be - () https://git.kernel.org/stable/c/1305d7d4f35ca6f214a2d23b075aa6a924cff3be - Patch
References () https://git.kernel.org/stable/c/18e6b6e2555c93f5ca09f2b85ef1fa025c8accea - () https://git.kernel.org/stable/c/18e6b6e2555c93f5ca09f2b85ef1fa025c8accea - Patch
References () https://git.kernel.org/stable/c/26ad2398fe4984f4f6f930bcb3bc9047fa77265b - () https://git.kernel.org/stable/c/26ad2398fe4984f4f6f930bcb3bc9047fa77265b - Patch
References () https://git.kernel.org/stable/c/63da7a2bbf3f28094920e0b8a17d2571a9bd842d - () https://git.kernel.org/stable/c/63da7a2bbf3f28094920e0b8a17d2571a9bd842d - Patch
References () https://git.kernel.org/stable/c/8f94b933103ee1bda119543369cc18a1be5536db - () https://git.kernel.org/stable/c/8f94b933103ee1bda119543369cc18a1be5536db - Patch
References () https://git.kernel.org/stable/c/9c9cb23e00ddf45679b21b4dacc11d1ae7961ebe - () https://git.kernel.org/stable/c/9c9cb23e00ddf45679b21b4dacc11d1ae7961ebe - Patch
References () https://git.kernel.org/stable/c/d66c052879791313f90c0584420f196a038fb8b8 - () https://git.kernel.org/stable/c/d66c052879791313f90c0584420f196a038fb8b8 - Patch
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: xfrm: se corrige una fuga de referencias en __xfrm_policy_check(). El problema ocurre en una ruta de error en __xfrm_policy_check(). Cuando falla la obtención del objeto `pols[1]`, la función simplemente devuelve 0, olvidando decrementar el recuento de referencias de `pols[0]`, que se incrementa previamente mediante xfrm_sk_policy_lookup() o xfrm_policy_lookup(). Esto puede provocar fugas de memoria. Para solucionarlo, reduzca el recuento de referencias de `pols[0]` en esa ruta.

18 Jun 2025, 11:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-06-18 11:15

Updated : 2025-11-14 16:59

NVD link : CVE-2022-50007

Mitre link : CVE-2022-50007

CVE.ORG link : CVE-2022-50007

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-Other