{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-23221", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:37:45.987Z", "datePublished": "2026-02-18T14:53:24.391Z", "dateUpdated": "2026-02-18T14:53:24.391Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-02-18T14:53:24.391Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbus: fsl-mc: fix use-after-free in driver_override_show()\n\nThe driver_override_show() function reads the driver_override string\nwithout holding the device_lock. However, driver_override_store() uses\ndriver_set_override(), which modifies and frees the string while holding\nthe device_lock.\n\nThis can result in a concurrent use-after-free if the string is freed\nby the store function while being read by the show function.\n\nFix this by holding the device_lock around the read operation."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/bus/fsl-mc/fsl-mc-bus.c"], "versions": [{"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "1d6bd6183e723a7b256ff34bbb5b498b5f4f2ec0", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "a2ae33e1c6361e960a4d00f7cf75d880b54f9528", "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/bus/fsl-mc/fsl-mc-bus.c"], "versions": [{"version": "6.18.11", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.1", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.18.11"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.19.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/1d6bd6183e723a7b256ff34bbb5b498b5f4f2ec0"}, {"url": "https://git.kernel.org/stable/c/a2ae33e1c6361e960a4d00f7cf75d880b54f9528"}], "title": "bus: fsl-mc: fix use-after-free in driver_override_show()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbus: fsl-mc: fix use-after-free in driver_override_show()\n\nThe driver_override_show() function reads the driver_override string\nwithout holding the device_lock. However, driver_override_store() uses\ndriver_set_override(), which modifies and frees the string while holding\nthe device_lock.\n\nThis can result in a concurrent use-after-free if the string is freed\nby the store function while being read by the show function.\n\nFix this by holding the device_lock around the read operation."}], "id": "CVE-2026-23221", "lastModified": "2026-02-18T17:51:53.510", "metrics": {}, "published": "2026-02-18T16:22:31.820", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1d6bd6183e723a7b256ff34bbb5b498b5f4f2ec0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a2ae33e1c6361e960a4d00f7cf75d880b54f9528"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{}

{}