{"id":"CVE-2022-50007","state":"PUBLISHED","title":"xfrm: fix refcount leak in __xfrm_policy_check()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm: fix refcount leak in __xfrm_policy_check()\n\nThe issue happens on an error path in __xfrm_policy_check(). When the\nfetching process of the object `pols[1]` fails, the function simply\nreturns 0, forgetting to decrement the reference count of `pols[0]`,\nwhich is incremented earlier by either xfrm_sk_policy_lookup() or\nxfrm_policy_lookup(). This may result in memory leaks.\n\nFix it by decreasing the reference count of `pols[0]` in that path.","publishedAt":"2025-06-18T11:01:12.447Z","updatedAt":"2026-05-11T19:10:55.254Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"134b0fc544ba062498451611cb6f3e4454221b3d","status":"affected","lessThan":"18e6b6e2555c93f5ca09f2b85ef1fa025c8accea","versionType":"git"},{"version":"134b0fc544ba062498451611cb6f3e4454221b3d","status":"affected","lessThan":"8f94b933103ee1bda119543369cc18a1be5536db","versionType":"git"},{"version":"134b0fc544ba062498451611cb6f3e4454221b3d","status":"affected","lessThan":"0769491a8acd3e85ca4c3f65080eac2c824262df","versionType":"git"},{"version":"134b0fc544ba062498451611cb6f3e4454221b3d","status":"affected","lessThan":"63da7a2bbf3f28094920e0b8a17d2571a9bd842d","versionType":"git"},{"version":"134b0fc544ba062498451611cb6f3e4454221b3d","status":"affected","lessThan":"1305d7d4f35ca6f214a2d23b075aa6a924cff3be","versionType":"git"},{"version":"134b0fc544ba062498451611cb6f3e4454221b3d","status":"affected","lessThan":"26ad2398fe4984f4f6f930bcb3bc9047fa77265b","versionType":"git"},{"version":"134b0fc544ba062498451611cb6f3e4454221b3d","status":"affected","lessThan":"d66c052879791313f90c0584420f196a038fb8b8","versionType":"git"},{"version":"134b0fc544ba062498451611cb6f3e4454221b3d","status":"affected","lessThan":"9c9cb23e00ddf45679b21b4dacc11d1ae7961ebe","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/xfrm/xfrm_policy.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.19","versionType":"semver"},{"version":"4.9.327","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.292","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.257","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.212","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.140","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.64","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.19.6","status":"unaffected","lessThanOrEqual":"5.19.*","versionType":"semver"},{"version":"6.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/xfrm/xfrm_policy.c"]}],"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"],"weaknesses":[],"ingestedAt":"2026-10-29T20:05:26.763Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2022/50xxx/CVE-2022-50007.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2022-50007","state":"PUBLISHED","datePublished":"2025-06-18T11:01:12.447Z","dateUpdated":"2026-05-11T19:10:55.254Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-06-18T10:57:27.388Z"},"containers":{"cna":{"title":"xfrm: fix refcount leak in __xfrm_policy_check()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nxfrm: fix refcount leak in __xfrm_policy_check()\n\nThe issue happens on an error path in __xfrm_policy_check(). When the\nfetching process of the object `pols[1]` fails, the function simply\nreturns 0, forgetting to decrement the reference count of `pols[0]`,\nwhich is incremented earlier by either xfrm_sk_policy_lookup() or\nxfrm_policy_lookup(). This may result in memory leaks.\n\nFix it by decreasing the reference count of `pols[0]` in that path."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"134b0fc544ba062498451611cb6f3e4454221b3d","status":"affected","lessThan":"18e6b6e2555c93f5ca09f2b85ef1fa025c8accea","versionType":"git"},{"version":"134b0fc544ba062498451611cb6f3e4454221b3d","status":"affected","lessThan":"8f94b933103ee1bda119543369cc18a1be5536db","versionType":"git"},{"version":"134b0fc544ba062498451611cb6f3e4454221b3d","status":"affected","lessThan":"0769491a8acd3e85ca4c3f65080eac2c824262df","versionType":"git"},{"version":"134b0fc544ba062498451611cb6f3e4454221b3d","status":"affected","lessThan":"63da7a2bbf3f28094920e0b8a17d2571a9bd842d","versionType":"git"},{"version":"134b0fc544ba062498451611cb6f3e4454221b3d","status":"affected","lessThan":"1305d7d4f35ca6f214a2d23b075aa6a924cff3be","versionType":"git"},{"version":"134b0fc544ba062498451611cb6f3e4454221b3d","status":"affected","lessThan":"26ad2398fe4984f4f6f930bcb3bc9047fa77265b","versionType":"git"},{"version":"134b0fc544ba062498451611cb6f3e4454221b3d","status":"affected","lessThan":"d66c052879791313f90c0584420f196a038fb8b8","versionType":"git"},{"version":"134b0fc544ba062498451611cb6f3e4454221b3d","status":"affected","lessThan":"9c9cb23e00ddf45679b21b4dacc11d1ae7961ebe","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/xfrm/xfrm_policy.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"2.6.19","status":"affected"},{"version":"0","status":"unaffected","lessThan":"2.6.19","versionType":"semver"},{"version":"4.9.327","status":"unaffected","lessThanOrEqual":"4.9.*","versionType":"semver"},{"version":"4.14.292","status":"unaffected","lessThanOrEqual":"4.14.*","versionType":"semver"},{"version":"4.19.257","status":"unaffected","lessThanOrEqual":"4.19.*","versionType":"semver"},{"version":"5.4.212","status":"unaffected","lessThanOrEqual":"5.4.*","versionType":"semver"},{"version":"5.10.140","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.64","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"5.19.6","status":"unaffected","lessThanOrEqual":"5.19.*","versionType":"semver"},{"version":"6.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["net/xfrm/xfrm_policy.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/18e6b6e2555c93f5ca09f2b85ef1fa025c8accea"},{"url":"https://git.kernel.org/stable/c/8f94b933103ee1bda119543369cc18a1be5536db"},{"url":"https://git.kernel.org/stable/c/0769491a8acd3e85ca4c3f65080eac2c824262df"},{"url":"https://git.kernel.org/stable/c/63da7a2bbf3f28094920e0b8a17d2571a9bd842d"},{"url":"https://git.kernel.org/stable/c/1305d7d4f35ca6f214a2d23b075aa6a924cff3be"},{"url":"https://git.kernel.org/stable/c/26ad2398fe4984f4f6f930bcb3bc9047fa77265b"},{"url":"https://git.kernel.org/stable/c/d66c052879791313f90c0584420f196a038fb8b8"},{"url":"https://git.kernel.org/stable/c/9c9cb23e00ddf45679b21b4dacc11d1ae7961ebe"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:10:55.254Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.19","versionEndExcluding":"4.9.327"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.19","versionEndExcluding":"4.14.292"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.19","versionEndExcluding":"4.19.257"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.19","versionEndExcluding":"5.4.212"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.19","versionEndExcluding":"5.10.140"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.19","versionEndExcluding":"5.15.64"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.19","versionEndExcluding":"5.19.6"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.19","versionEndExcluding":"6.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}