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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
134b0fc544ba062498451611cb6f3e4454221b3d to < 18e6b6e2555c93f5ca09f2b85ef1fa025c8acceaaffected134b0fc544ba062498451611cb6f3e4454221b3d to < 8f94b933103ee1bda119543369cc18a1be5536dbaffected134b0fc544ba062498451611cb6f3e4454221b3d to < 0769491a8acd3e85ca4c3f65080eac2c824262dfaffected134b0fc544ba062498451611cb6f3e4454221b3d to < 63da7a2bbf3f28094920e0b8a17d2571a9bd842daffected134b0fc544ba062498451611cb6f3e4454221b3d to < 1305d7d4f35ca6f214a2d23b075aa6a924cff3beaffected134b0fc544ba062498451611cb6f3e4454221b3d to < 26ad2398fe4984f4f6f930bcb3bc9047fa77265baffected134b0fc544ba062498451611cb6f3e4454221b3d to < d66c052879791313f90c0584420f196a038fb8b8affected134b0fc544ba062498451611cb6f3e4454221b3d to < 9c9cb23e00ddf45679b21b4dacc11d1ae7961ebeaffected
Linux Linux
Default version status: affected
2.6.19affected0 to < 2.6.19unaffected4.9.327 to ≤ 4.9.*unaffected4.14.292 to ≤ 4.14.*unaffected4.19.257 to ≤ 4.19.*unaffected5.4.212 to ≤ 5.4.*unaffected5.10.140 to ≤ 5.10.*unaffected5.15.64 to ≤ 5.15.*unaffected5.19.6 to ≤ 5.19.*unaffected6.0 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/18e6b6e2555c93f5ca09f2b85ef1fa025c8accea ↗
- https://git.kernel.org/stable/c/8f94b933103ee1bda119543369cc18a1be5536db ↗
- https://git.kernel.org/stable/c/0769491a8acd3e85ca4c3f65080eac2c824262df ↗
- https://git.kernel.org/stable/c/63da7a2bbf3f28094920e0b8a17d2571a9bd842d ↗
- https://git.kernel.org/stable/c/1305d7d4f35ca6f214a2d23b075aa6a924cff3be ↗
- https://git.kernel.org/stable/c/26ad2398fe4984f4f6f930bcb3bc9047fa77265b ↗
- https://git.kernel.org/stable/c/d66c052879791313f90c0584420f196a038fb8b8 ↗
- https://git.kernel.org/stable/c/9c9cb23e00ddf45679b21b4dacc11d1ae7961ebe ↗