{"api_version":"1","generated_at":"2026-06-26T17:17:23+00:00","cve":"CVE-2026-53227","urls":{"html":"https://cve.report/CVE-2026-53227","api":"https://cve.report/api/cve/CVE-2026-53227.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53227","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53227"},"summary":{"title":"net: openvswitch: fix possible kfree_skb of ERR_PTR","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: openvswitch: fix possible kfree_skb of ERR_PTR\n\nAfter the patch in the \"Fixes\" tag, the allocation of the \"reply\" skb\ncan happen either before or after locking the ovs_mutex.\n\nHowever, error cleanups still follow the classical reversed order,\nassuming \"reply\" is allocated before locking: it is freed after unlocking.\n\nIf \"reply\" allocation happens after locking the mutex and it fails,\n\"reply\" is left with an ERR_PTR, and execution jumps to the correspondent\ncleanup stage which will try to free an invalid pointer.\n\nFix this by setting the pointer to NULL after having saved its error\nvalue.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-06-25 09:16:40","updated_at":"2026-06-25 09:16:40"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/e248fb2e680deb2bd37bac551b72638fe4938a76","name":"https://git.kernel.org/stable/c/e248fb2e680deb2bd37bac551b72638fe4938a76","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/971b1b37774f13acc5add0a2843f8598446b8598","name":"https://git.kernel.org/stable/c/971b1b37774f13acc5add0a2843f8598446b8598","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/e3d509a1b71396e1452060dbf84a805fd1c3c549","name":"https://git.kernel.org/stable/c/e3d509a1b71396e1452060dbf84a805fd1c3c549","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ee30dd2909d8b98619f4341c70ec8dc8e155ab02","name":"https://git.kernel.org/stable/c/ee30dd2909d8b98619f4341c70ec8dc8e155ab02","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/25fdf53698535fe8790237f5a8a9626791429785","name":"https://git.kernel.org/stable/c/25fdf53698535fe8790237f5a8a9626791429785","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/0bb5b2dc1b90aa7dd1473fc8c4d813a29255ff8d","name":"https://git.kernel.org/stable/c/0bb5b2dc1b90aa7dd1473fc8c4d813a29255ff8d","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/895d1dd9057cde1687fa0f4286d47ceed0b82997","name":"https://git.kernel.org/stable/c/895d1dd9057cde1687fa0f4286d47ceed0b82997","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/ecc55aad3390129a87106841f4b68bf3d70c9264","name":"https://git.kernel.org/stable/c/ecc55aad3390129a87106841f4b68bf3d70c9264","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53227","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53227","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 893f139b9a6c00c097b9082a90f3041cfb3a0d20 e248fb2e680deb2bd37bac551b72638fe4938a76 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 893f139b9a6c00c097b9082a90f3041cfb3a0d20 0bb5b2dc1b90aa7dd1473fc8c4d813a29255ff8d git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 893f139b9a6c00c097b9082a90f3041cfb3a0d20 971b1b37774f13acc5add0a2843f8598446b8598 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 893f139b9a6c00c097b9082a90f3041cfb3a0d20 25fdf53698535fe8790237f5a8a9626791429785 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 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semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15.210 5.15.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.176 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.143 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.94 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.36 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.13 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"53227","cve":"CVE-2026-53227","epss":"0.001980000","percentile":"0.097750000","score_date":"2026-06-25","updated_at":"2026-06-26 00:06:14"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/openvswitch/datapath.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"e248fb2e680deb2bd37bac551b72638fe4938a76","status":"affected","version":"893f139b9a6c00c097b9082a90f3041cfb3a0d20","versionType":"git"},{"lessThan":"0bb5b2dc1b90aa7dd1473fc8c4d813a29255ff8d","status":"affected","version":"893f139b9a6c00c097b9082a90f3041cfb3a0d20","versionType":"git"},{"lessThan":"971b1b37774f13acc5add0a2843f8598446b8598","status":"affected","version":"893f139b9a6c00c097b9082a90f3041cfb3a0d20","versionType":"git"},{"lessThan":"25fdf53698535fe8790237f5a8a9626791429785","status":"affected","version":"893f139b9a6c00c097b9082a90f3041cfb3a0d20","versionType":"git"},{"lessThan":"e3d509a1b71396e1452060dbf84a805fd1c3c549","status":"affected","version":"893f139b9a6c00c097b9082a90f3041cfb3a0d20","versionType":"git"},{"lessThan":"ecc55aad3390129a87106841f4b68bf3d70c9264","status":"affected","version":"893f139b9a6c00c097b9082a90f3041cfb3a0d20","versionType":"git"},{"lessThan":"895d1dd9057cde1687fa0f4286d47ceed0b82997","status":"affected","version":"893f139b9a6c00c097b9082a90f3041cfb3a0d20","versionType":"git"},{"lessThan":"ee30dd2909d8b98619f4341c70ec8dc8e155ab02","status":"affected","version":"893f139b9a6c00c097b9082a90f3041cfb3a0d20","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["net/openvswitch/datapath.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"3.16"},{"lessThan":"3.16","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.143","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.94","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.36","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.13","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.10.259","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"5.15.210","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.176","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.143","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.94","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.36","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.13","versionStartIncluding":"3.16","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"3.16","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: openvswitch: fix possible kfree_skb of ERR_PTR\n\nAfter the patch in the \"Fixes\" tag, the allocation of the \"reply\" skb\ncan happen either before or after locking the ovs_mutex.\n\nHowever, error cleanups still follow the classical reversed order,\nassuming \"reply\" is allocated before locking: it is freed after unlocking.\n\nIf \"reply\" allocation happens after locking the mutex and it fails,\n\"reply\" is left with an ERR_PTR, and execution jumps to the correspondent\ncleanup stage which will try to free an invalid pointer.\n\nFix this by setting the pointer to NULL after having saved its error\nvalue."}],"providerMetadata":{"dateUpdated":"2026-06-25T08:39:27.229Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/e248fb2e680deb2bd37bac551b72638fe4938a76"},{"url":"https://git.kernel.org/stable/c/0bb5b2dc1b90aa7dd1473fc8c4d813a29255ff8d"},{"url":"https://git.kernel.org/stable/c/971b1b37774f13acc5add0a2843f8598446b8598"},{"url":"https://git.kernel.org/stable/c/25fdf53698535fe8790237f5a8a9626791429785"},{"url":"https://git.kernel.org/stable/c/e3d509a1b71396e1452060dbf84a805fd1c3c549"},{"url":"https://git.kernel.org/stable/c/ecc55aad3390129a87106841f4b68bf3d70c9264"},{"url":"https://git.kernel.org/stable/c/895d1dd9057cde1687fa0f4286d47ceed0b82997"},{"url":"https://git.kernel.org/stable/c/ee30dd2909d8b98619f4341c70ec8dc8e155ab02"}],"title":"net: openvswitch: fix possible kfree_skb of ERR_PTR","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53227","datePublished":"2026-06-25T08:39:27.229Z","dateReserved":"2026-06-09T07:44:35.392Z","dateUpdated":"2026-06-25T08:39:27.229Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-06-25 09:16:40","lastModifiedDate":"2026-06-25 09:16:40","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53227","Ordinal":"1","Title":"net: openvswitch: fix possible kfree_skb of ERR_PTR","CVE":"CVE-2026-53227","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53227","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: openvswitch: fix possible kfree_skb of ERR_PTR\n\nAfter the patch in the \"Fixes\" tag, the allocation of the \"reply\" skb\ncan happen either before or after locking the ovs_mutex.\n\nHowever, error cleanups still follow the classical reversed order,\nassuming \"reply\" is allocated before locking: it is freed after unlocking.\n\nIf \"reply\" allocation happens after locking the mutex and it fails,\n\"reply\" is left with an ERR_PTR, and execution jumps to the correspondent\ncleanup stage which will try to free an invalid pointer.\n\nFix this by setting the pointer to NULL after having saved its error\nvalue.","Type":"Description","Title":"net: openvswitch: fix possible kfree_skb of ERR_PTR"}]}}}