{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-43189", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:55.992Z", "datePublished": "2026-05-06T11:27:59.108Z", "dateUpdated": "2026-05-11T22:19:34.106Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T22:19:34.106Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: v4l2-async: Fix error handling on steps after finding a match\n\nOnce an async connection is found to be matching with an fwnode, a\nsub-device may be registered (in case it wasn't already), its bound\noperation is called, ancillary links are created, the async connection\nis added to the sub-device's list of connections and removed from the\nglobal waiting connection list. Further on, the sub-device's possible own\nnotifier is searched for possible additional matches.\n\nFix these specific issues:\n\n- If v4l2_async_match_notify() failed before the sub-notifier handling,\n the async connection was unbound and its entry removed from the\n sub-device's async connection list. The latter part was also done in\n v4l2_async_match_notify().\n\n- The async connection's sd field was only set after creating ancillary\n links in v4l2_async_match_notify(). It was however dereferenced in\n v4l2_async_unbind_subdev_one(), which was called on error path of\n v4l2_async_match_notify() failure."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/media/v4l2-core/v4l2-async.c"], "versions": [{"version": "28a1295795d85a25f2e7dd391c43969e95fcb341", "lessThan": "30aaed311f973f13ba13a0cd2dc0202f595fff48", "status": "affected", "versionType": "git"}, {"version": "28a1295795d85a25f2e7dd391c43969e95fcb341", "lessThan": "461733d83e67ba7e3a5b750c0d203f738e01244f", "status": "affected", "versionType": "git"}, {"version": "28a1295795d85a25f2e7dd391c43969e95fcb341", "lessThan": "b02bcb378efa8af07827f49b3afcc5e825318c55", "status": "affected", "versionType": "git"}, {"version": "28a1295795d85a25f2e7dd391c43969e95fcb341", "lessThan": "2de0a3c8148fc3dbea21981e6569f550b3626119", "status": "affected", "versionType": "git"}, {"version": "28a1295795d85a25f2e7dd391c43969e95fcb341", "lessThan": "7345d6d356336c448d6b9230ed8704f39679fd12", "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/media/v4l2-core/v4l2-async.c"], "versions": [{"version": "6.6", "status": "affected"}, {"version": "0", "lessThan": "6.6", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.128", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.75", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.16", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.6", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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", "versionEndExcluding": "6.6.128"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.12.75"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.18.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.19.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/30aaed311f973f13ba13a0cd2dc0202f595fff48"}, {"url": "https://git.kernel.org/stable/c/461733d83e67ba7e3a5b750c0d203f738e01244f"}, {"url": "https://git.kernel.org/stable/c/b02bcb378efa8af07827f49b3afcc5e825318c55"}, {"url": "https://git.kernel.org/stable/c/2de0a3c8148fc3dbea21981e6569f550b3626119"}, {"url": "https://git.kernel.org/stable/c/7345d6d356336c448d6b9230ed8704f39679fd12"}], "title": "media: v4l2-async: Fix error handling on steps after finding a match", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"bugzilla": {"description": "kernel: media: v4l2-async: Fix error handling on steps after finding a match", "id": "2467226", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2467226"}, "csaw": false, "cvss3": {"cvss3_base_score": "7.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "status": "draft"}, "cwe": "CWE-476", "details": ["A flaw was found in the `v4l2-async` component of the Linux kernel. Improper error handling during asynchronous video device matching can lead to a null pointer dereference. This issue could allow a local attacker to trigger a system crash, resulting in a Denial of Service (DoS)."], "name": "CVE-2026-43189", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Affected", "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": "Affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "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": "2026-05-06T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-43189\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-43189\nhttps://lore.kernel.org/linux-cve-announce/2026050641-CVE-2026-43189-6bf9@gregkh/T"], "threat_severity": "Moderate"}

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