CVE-2026-74432

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74432", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.896Z", "datePublished": "2026-08-15T05:59:32.207Z", "dateUpdated": "2026-10-30T12:30:02.873Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-30T12:30:02.873Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: Fix leak of released call in recvmsg(MSG_PEEK)\n\nFix rxrpc_recvmsg() to also drop the ref it holds on an already-released\ncall if MSG_PEEK is in force (the function holds a ref on the call\nirrespective of whether MSG_PEEK is specified or not)."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/rxrpc/recvmsg.c"], "versions": [{"version": "7692bde890061797f3dece0148d7859e85c55778", "lessThan": "86eff3140c9d4b52bba13d1cba266da933403e51", "status": "affected", "versionType": "git"}, {"version": "839fe96c15209dc2255c064bb44b636efe04f032", "lessThan": "e473cd3046a1aaec1e39af5df2042ce7c04d5e74", "status": "affected", "versionType": "git"}, {"version": "962fb1f651c2cf2083e0c3ef53ba69e3b96d3fbc", "lessThan": "2b69b61057eb0b3db9ad754ef0f1436b7af3a9f5", "status": "affected", "versionType": "git"}, {"version": "962fb1f651c2cf2083e0c3ef53ba69e3b96d3fbc", "lessThan": "04c7103dc0923cc6ac95b97aa66bab70da7ace84", "status": "affected", "versionType": "git"}, {"version": "962fb1f651c2cf2083e0c3ef53ba69e3b96d3fbc", "lessThan": "4bdb9e471f5b1ac9cbe4add5de7ff085a0ec303c", "status": "affected", "versionType": "git"}, {"version": "4aed0eeca58e26d752bb08b293b8dc75c6820b23", "status": "affected", "versionType": "git"}, {"version": "cb720b068b18fb39c96980eb3c13f09427512be7", "status": "affected", "versionType": "git"}, {"version": "6c75a97a32a5fa2060c3dd30207e63b6914b606d", "status": "affected", "versionType": "git"}, {"version": "6.6.100", "lessThan": "6.6.145", "status": "affected", "versionType": "semver"}, {"version": "6.12.40", "lessThan": "6.12.97", "status": "affected", "versionType": "semver"}, {"version": "5.10.266", "lessThan": "5.11", "status": "affected", "versionType": "semver"}, {"version": "6.1.191", "lessThan": "6.2", "status": "affected", "versionType": "semver"}, {"version": "6.15.8", "lessThan": "6.16", "status": "affected", "versionType": "semver"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["net/rxrpc/recvmsg.c"], "versions": [{"version": "6.16", "status": "affected"}, {"version": "0", "lessThan": "6.16", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.145", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.97", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.100", "versionEndExcluding": "6.6.145"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.12.40", "versionEndExcluding": "6.12.97"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.16", "versionEndExcluding": "7.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.10.266"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.191"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15.8"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/86eff3140c9d4b52bba13d1cba266da933403e51"}, {"url": "https://git.kernel.org/stable/c/e473cd3046a1aaec1e39af5df2042ce7c04d5e74"}, {"url": "https://git.kernel.org/stable/c/2b69b61057eb0b3db9ad754ef0f1436b7af3a9f5"}, {"url": "https://git.kernel.org/stable/c/04c7103dc0923cc6ac95b97aa66bab70da7ace84"}, {"url": "https://git.kernel.org/stable/c/4bdb9e471f5b1ac9cbe4add5de7ff085a0ec303c"}], "title": "rxrpc: Fix leak of released call in recvmsg(MSG_PEEK)", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["net/rxrpc/recvmsg.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "86eff3140c9d4b52bba13d1cba266da933403e51", "status": "affected", "version": "7692bde890061797f3dece0148d7859e85c55778", "versionType": "git"}, {"lessThan": "e473cd3046a1aaec1e39af5df2042ce7c04d5e74", "status": "affected", "version": "839fe96c15209dc2255c064bb44b636efe04f032", "versionType": "git"}, {"lessThan": "2b69b61057eb0b3db9ad754ef0f1436b7af3a9f5", "status": "affected", "version": "962fb1f651c2cf2083e0c3ef53ba69e3b96d3fbc", "versionType": "git"}, {"lessThan": "04c7103dc0923cc6ac95b97aa66bab70da7ace84", "status": "affected", "version": "962fb1f651c2cf2083e0c3ef53ba69e3b96d3fbc", "versionType": "git"}, {"lessThan": "4bdb9e471f5b1ac9cbe4add5de7ff085a0ec303c", "status": "affected", "version": "962fb1f651c2cf2083e0c3ef53ba69e3b96d3fbc", "versionType": "git"}, {"status": "affected", "version": "4aed0eeca58e26d752bb08b293b8dc75c6820b23", "versionType": "git"}, {"status": "affected", "version": "cb720b068b18fb39c96980eb3c13f09427512be7", "versionType": "git"}, {"status": "affected", "version": "6c75a97a32a5fa2060c3dd30207e63b6914b606d", "versionType": "git"}, {"lessThan": "6.6.145", "status": "affected", "version": "6.6.100", "versionType": "semver"}, {"lessThan": "6.12.97", "status": "affected", "version": "6.12.40", "versionType": "semver"}, {"lessThan": "5.11", "status": "affected", "version": "5.10.266", "versionType": "semver"}, {"lessThan": "6.2", "status": "affected", "version": "6.1.191", "versionType": "semver"}, {"lessThan": "6.16", "status": "affected", "version": "6.15.8", "versionType": "semver"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["net/rxrpc/recvmsg.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.16"}, {"lessThan": "6.16", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.145", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.97", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nrxrpc: Fix leak of released call in recvmsg(MSG_PEEK)\n\nFix rxrpc_recvmsg() to also drop the ref it holds on an already-released\ncall if MSG_PEEK is in force (the function holds a ref on the call\nirrespective of whether MSG_PEEK is specified or not)."}], "id": "CVE-2026-74432", "lastModified": "2026-10-30T13:19:58.877", "metrics": {}, "published": "2026-08-15T06:22:45.317", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/04c7103dc0923cc6ac95b97aa66bab70da7ace84"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2b69b61057eb0b3db9ad754ef0f1436b7af3a9f5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4bdb9e471f5b1ac9cbe4add5de7ff085a0ec303c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/86eff3140c9d4b52bba13d1cba266da933403e51"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e473cd3046a1aaec1e39af5df2042ce7c04d5e74"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: rxrpc: Fix leak of released call in recvmsg(MSG_PEEK)", "id": "2516914", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516914"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-911", "details": ["A flaw was found in the rxrpc component of the Linux kernel. When the `recvmsg()` function is called with the `MSG_PEEK` flag, it fails to properly release a reference to an already-released call. This oversight can lead to a memory leak, potentially allowing a local attacker to cause a Denial of Service (DoS) by exhausting system resources."], "name": "CVE-2026-74432", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-74432\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-74432\nhttps://lore.kernel.org/linux-cve-announce/2026081515-CVE-2026-74432-37b1@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[7692bde890061797f3dece0148d7859e85c55778,86eff3140c9d4b52bba13d1cba266da933403e51)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[839fe96c15209dc2255c064bb44b636efe04f032,e473cd3046a1aaec1e39af5df2042ce7c04d5e74)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[962fb1f651c2cf2083e0c3ef53ba69e3b96d3fbc,2b69b61057eb0b3db9ad754ef0f1436b7af3a9f5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[962fb1f651c2cf2083e0c3ef53ba69e3b96d3fbc,04c7103dc0923cc6ac95b97aa66bab70da7ace84)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[962fb1f651c2cf2083e0c3ef53ba69e3b96d3fbc,4bdb9e471f5b1ac9cbe4add5de7ff085a0ec303c)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "6c75a97a32a5fa2060c3dd30207e63b6914b606d"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.6.100,6.6.145)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.12.40,6.12.97)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.15.8,6.16)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "6.16"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,6.16)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.6.145,6.6.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.97,6.12.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.40,6.18.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1.5,7.1.*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-08-15T13:45:03.196363+00:00", "updated": "2026-08-21T23:45:03.447635+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}