{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2021-46979", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2024-02-27T18:42:55.945Z", "datePublished": "2024-02-28T08:13:09.736Z", "dateUpdated": "2026-05-11T13:45:36.561Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T13:45:36.561Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: core: fix ioctl handlers removal\n\nCurrently ioctl handlers are removed twice. For the first time during\niio_device_unregister() then later on inside\niio_device_unregister_eventset() and iio_buffers_free_sysfs_and_mask().\nDouble free leads to kernel panic.\n\nFix this by not touching ioctl handlers list directly but rather\nletting code responsible for registration call the matching cleanup\nroutine itself." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/iio/industrialio-core.c" ], "versions": [ { "version": "8dedcc3eee3aceb37832176f0a1b03d5687acda3", "lessThan": "11e1cae5da4096552f7c091476cbadbc0d1817da", "status": "affected", "versionType": "git" }, { "version": "8dedcc3eee3aceb37832176f0a1b03d5687acda3", "lessThan": "ab6c935ba3a04317632f3b8b68675bdbaf395303", "status": "affected", "versionType": "git" }, { "version": "8dedcc3eee3aceb37832176f0a1b03d5687acda3", "lessThan": "901f84de0e16bde10a72d7eb2f2eb73fcde8fa1a", "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/iio/industrialio-core.c" ], "versions": [ { "version": "5.11", "status": "affected" }, { "version": "0", "lessThan": "5.11", "status": "unaffected", "versionType": "semver" }, { "version": "5.11.22", "lessThanOrEqual": "5.11.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.12.5", "lessThanOrEqual": "5.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.13", "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": "5.11", "versionEndExcluding": "5.11.22" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "5.12.5" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.11", "versionEndExcluding": "5.13" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/11e1cae5da4096552f7c091476cbadbc0d1817da" }, { "url": "https://git.kernel.org/stable/c/ab6c935ba3a04317632f3b8b68675bdbaf395303" }, { "url": "https://git.kernel.org/stable/c/901f84de0e16bde10a72d7eb2f2eb73fcde8fa1a" } ], "title": "iio: core: fix ioctl handlers removal", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "title": "CISA ADP Vulnrichment", "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2021-46979", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "version": "2.0.3", "timestamp": "2024-03-05T16:50:41.718465Z" } } } ], "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2024-06-04T17:13:09.338Z" } }, { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T05:24:38.457Z" }, "title": "CVE Program Container", "references": [ { "url": "https://git.kernel.org/stable/c/11e1cae5da4096552f7c091476cbadbc0d1817da", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/ab6c935ba3a04317632f3b8b68675bdbaf395303", "tags": [ "x_transferred" ] }, { "url": "https://git.kernel.org/stable/c/901f84de0e16bde10a72d7eb2f2eb73fcde8fa1a", "tags": [ "x_transferred" ] } ] } ] } }