CVE-2026-74393

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74393", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.891Z", "datePublished": "2026-08-15T05:59:06.470Z", "dateUpdated": "2026-08-17T05:18:32.271Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T05:18:32.271Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/syncobj: Fix memory leak in drm_syncobj_find_fence()\n\nCommit 18226ba52159 (\"drm/syncobj: reject invalid flags in\ndrm_syncobj_find_fence\") forgot to take into account the fact that\ndrm_syncobj_find() takes a reference to syncobj and returns early\nwithout dropping the reference, leading to memory leaks.\n\nReported by: Sam Spencer <sam.spencer@arm.com>"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/drm_syncobj.c"], "versions": [{"version": "18226ba52159257d4c2f777a168cc09adb3c1ac0", "lessThan": "e245f3491bf30a758786a4424854f61fee472308", "status": "affected", "versionType": "git"}, {"version": "18226ba52159257d4c2f777a168cc09adb3c1ac0", "lessThan": "7471006cd854d159723344be809e8287a2d75502", "status": "affected", "versionType": "git"}, {"version": "18226ba52159257d4c2f777a168cc09adb3c1ac0", "lessThan": "5c5994a1204743fa55e4c198ed93a6c36f21cd1f", "status": "affected", "versionType": "git"}, {"version": "18226ba52159257d4c2f777a168cc09adb3c1ac0", "lessThan": "e5b93bd6fdb92aa5e4689715d7e8487d9ce66a38", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpu/drm/drm_syncobj.c"], "versions": [{"version": "6.9", "status": "affected"}, {"version": "0", "lessThan": "6.9", "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": "6.9", "versionEndExcluding": "6.12.97"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/e245f3491bf30a758786a4424854f61fee472308"}, {"url": "https://git.kernel.org/stable/c/7471006cd854d159723344be809e8287a2d75502"}, {"url": "https://git.kernel.org/stable/c/5c5994a1204743fa55e4c198ed93a6c36f21cd1f"}, {"url": "https://git.kernel.org/stable/c/e5b93bd6fdb92aa5e4689715d7e8487d9ce66a38"}], "title": "drm/syncobj: Fix memory leak in drm_syncobj_find_fence()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/gpu/drm/drm_syncobj.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "e245f3491bf30a758786a4424854f61fee472308", "status": "affected", "version": "18226ba52159257d4c2f777a168cc09adb3c1ac0", "versionType": "git"}, {"lessThan": "7471006cd854d159723344be809e8287a2d75502", "status": "affected", "version": "18226ba52159257d4c2f777a168cc09adb3c1ac0", "versionType": "git"}, {"lessThan": "5c5994a1204743fa55e4c198ed93a6c36f21cd1f", "status": "affected", "version": "18226ba52159257d4c2f777a168cc09adb3c1ac0", "versionType": "git"}, {"lessThan": "e5b93bd6fdb92aa5e4689715d7e8487d9ce66a38", "status": "affected", "version": "18226ba52159257d4c2f777a168cc09adb3c1ac0", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/gpu/drm/drm_syncobj.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.9"}, {"lessThan": "6.9", "status": "unaffected", "version": "0", "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\ndrm/syncobj: Fix memory leak in drm_syncobj_find_fence()\n\nCommit 18226ba52159 (\"drm/syncobj: reject invalid flags in\ndrm_syncobj_find_fence\") forgot to take into account the fact that\ndrm_syncobj_find() takes a reference to syncobj and returns early\nwithout dropping the reference, leading to memory leaks.\n\nReported by: Sam Spencer <sam.spencer@arm.com>"}], "id": "CVE-2026-74393", "lastModified": "2026-08-17T06:19:34.343", "metrics": {}, "published": "2026-08-15T06:22:41.257", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5c5994a1204743fa55e4c198ed93a6c36f21cd1f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7471006cd854d159723344be809e8287a2d75502"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e245f3491bf30a758786a4424854f61fee472308"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e5b93bd6fdb92aa5e4689715d7e8487d9ce66a38"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: drm/syncobj: Fix memory leak in drm_syncobj_find_fence()", "id": "2516919", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516919"}, "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-771", "details": ["In the Linux kernel, the following vulnerability has been resolved:\ndrm/syncobj: Fix memory leak in drm_syncobj_find_fence()\nCommit 18226ba52159 (\"drm/syncobj: reject invalid flags in\ndrm_syncobj_find_fence\") forgot to take into account the fact that\ndrm_syncobj_find() takes a reference to syncobj and returns early\nwithout dropping the reference, leading to memory leaks.\nReported by: Sam Spencer <sam.spencer@arm.com>", "A flaw was found in the Linux kernel's `drm/syncobj` component. The `drm_syncobj_find_fence()` function fails to properly release a reference to a `syncobj` object, which is acquired by `drm_syncobj_find()`. This oversight leads to a memory leak. A local attacker could exploit this vulnerability to consume system memory, potentially leading to a Denial of Service (DoS)."], "name": "CVE-2026-74393", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "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-2026-74393\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-74393\nhttps://lore.kernel.org/linux-cve-announce/2026081507-CVE-2026-74393-6160@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[18226ba52159257d4c2f777a168cc09adb3c1ac0,e245f3491bf30a758786a4424854f61fee472308)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[18226ba52159257d4c2f777a168cc09adb3c1ac0,7471006cd854d159723344be809e8287a2d75502)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[18226ba52159257d4c2f777a168cc09adb3c1ac0,5c5994a1204743fa55e4c198ed93a6c36f21cd1f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[18226ba52159257d4c2f777a168cc09adb3c1ac0,e5b93bd6fdb92aa5e4689715d7e8487d9ce66a38)"}}], "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": "generic", "value": "6.9"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.9)"}}, {"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": "2026-08-15T16:15:03.533942+00:00", "updated": "2026-08-22T02:00:17.902788+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}