{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-23158", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:37:45.978Z", "datePublished": "2026-02-14T16:01:24.568Z", "dateUpdated": "2026-02-14T16:01:24.568Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-02-14T16:01:24.568Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: virtuser: fix UAF in configfs release path\n\nThe gpio-virtuser configfs release path uses guard(mutex) to protect\nthe device structure. However, the device is freed before the guard\ncleanup runs, causing mutex_unlock() to operate on freed memory.\n\nSpecifically, gpio_virtuser_device_config_group_release() destroys\nthe mutex and frees the device while still inside the guard(mutex)\nscope. When the function returns, the guard cleanup invokes\nmutex_unlock(&dev->lock), resulting in a slab use-after-free.\n\nLimit the mutex lifetime by using a scoped_guard() only around the\nactivation check, so that the lock is released before mutex_destroy()\nand kfree() are called."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpio/gpio-virtuser.c"], "versions": [{"version": "91581c4b3f29e2e22aeb1a62e842d529ca638b2d", "lessThan": "815a8e3bf72811d402b30bd4a53cde5e9df7a563", "status": "affected", "versionType": "git"}, {"version": "91581c4b3f29e2e22aeb1a62e842d529ca638b2d", "lessThan": "7bec90f605cfb138006f5ba575f2310593347110", "status": "affected", "versionType": "git"}, {"version": "91581c4b3f29e2e22aeb1a62e842d529ca638b2d", "lessThan": "53ad4a948a4586359b841d607c08fb16c5503230", "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/gpio/gpio-virtuser.c"], "versions": [{"version": "6.11", "status": "affected"}, {"version": "0", "lessThan": "6.11", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.69", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.9", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19", "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": "6.11", "versionEndExcluding": "6.12.69"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.18.9"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.11", "versionEndExcluding": "6.19"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/815a8e3bf72811d402b30bd4a53cde5e9df7a563"}, {"url": "https://git.kernel.org/stable/c/7bec90f605cfb138006f5ba575f2310593347110"}, {"url": "https://git.kernel.org/stable/c/53ad4a948a4586359b841d607c08fb16c5503230"}], "title": "gpio: virtuser: fix UAF in configfs release path", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "219DC3F4-AB51-4D26-AD8C-80422D7E6103", "versionEndExcluding": "6.12.69", "versionStartIncluding": "6.11", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "matchCriteriaId": "171CFCB2-8F49-4F9E-8A67-FAC6BF45B5A2", "versionEndExcluding": "6.18.9", "versionStartIncluding": "6.13", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc1:*:*:*:*:*:*", "matchCriteriaId": "17B67AA7-40D6-4AFA-8459-F200F3D7CFD1", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc2:*:*:*:*:*:*", "matchCriteriaId": "C47E4CC9-C826-4FA9-B014-7FE3D9B318B2", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc3:*:*:*:*:*:*", "matchCriteriaId": "F71D92C0-C023-48BD-B3B6-70B638EEE298", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc4:*:*:*:*:*:*", "matchCriteriaId": "13580667-0A98-40CC-B29F-D12790B91BDB", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc5:*:*:*:*:*:*", "matchCriteriaId": "CAD1FED7-CF48-47BF-AC7D-7B6FA3C065FC", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc6:*:*:*:*:*:*", "matchCriteriaId": "3EF854A1-ABB1-4E93-BE9A-44569EC76C0D", "vulnerable": true}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.19:rc7:*:*:*:*:*:*", "matchCriteriaId": "F5DC0CA6-F0AF-4DDF-A882-3DADB9A886A7", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpio: virtuser: fix UAF in configfs release path\n\nThe gpio-virtuser configfs release path uses guard(mutex) to protect\nthe device structure. However, the device is freed before the guard\ncleanup runs, causing mutex_unlock() to operate on freed memory.\n\nSpecifically, gpio_virtuser_device_config_group_release() destroys\nthe mutex and frees the device while still inside the guard(mutex)\nscope. When the function returns, the guard cleanup invokes\nmutex_unlock(&dev->lock), resulting in a slab use-after-free.\n\nLimit the mutex lifetime by using a scoped_guard() only around the\nactivation check, so that the lock is released before mutex_destroy()\nand kfree() are called."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\ngpio: virtuser: corregir uso despu\u00e9s de liberaci\u00f3n en la ruta de liberaci\u00f3n de configfs\n\nLa ruta de liberaci\u00f3n de configfs de gpio-virtuser usa guard(mutex) para proteger la estructura del dispositivo. Sin embargo, el dispositivo es liberado antes de que se ejecute la limpieza del guard, causando que mutex_unlock() opere sobre memoria liberada.\n\nEspec\u00edficamente, gpio_virtuser_device_config_group_release() destruye el mutex y libera el dispositivo mientras a\u00fan est\u00e1 dentro del \u00e1mbito de guard(mutex). Cuando la funci\u00f3n retorna, la limpieza del guard invoca mutex_unlock(&dev->lock), resultando en un uso despu\u00e9s de liberaci\u00f3n de slab.\n\nLimitar la vida \u00fatil del mutex usando un scoped_guard() solo alrededor de la verificaci\u00f3n de activaci\u00f3n, para que el bloqueo sea liberado antes de que se llamen a mutex_destroy() y kfree()."}], "id": "CVE-2026-23158", "lastModified": "2026-03-18T14:19:55.513", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-02-14T16:15:55.967", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/53ad4a948a4586359b841d607c08fb16c5503230"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7bec90f605cfb138006f5ba575f2310593347110"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/815a8e3bf72811d402b30bd4a53cde5e9df7a563"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-416"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: gpio: virtuser: fix UAF in configfs release path", "id": "2439910", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2439910"}, "csaw": false, "details": ["In the Linux kernel, the following vulnerability has been resolved:\ngpio: virtuser: fix UAF in configfs release path\nThe gpio-virtuser configfs release path uses guard(mutex) to protect\nthe device structure. However, the device is freed before the guard\ncleanup runs, causing mutex_unlock() to operate on freed memory.\nSpecifically, gpio_virtuser_device_config_group_release() destroys\nthe mutex and frees the device while still inside the guard(mutex)\nscope. When the function returns, the guard cleanup invokes\nmutex_unlock(&dev->lock), resulting in a slab use-after-free.\nLimit the mutex lifetime by using a scoped_guard() only around the\nactivation check, so that the lock is released before mutex_destroy()\nand kfree() are called."], "name": "CVE-2026-23158", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not 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": "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": "2026-02-14T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-23158\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-23158\nhttps://lore.kernel.org/linux-cve-announce/2026021417-CVE-2026-23158-052d@gregkh/T"]}

{"created": "2026-02-16T12:01:09.146522+00:00", "updated": "2026-02-16T12:01:09.146619+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}