{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2022-50453", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-09-17T14:53:07.013Z", "datePublished": "2025-10-01T11:45:26.499Z", "dateUpdated": "2025-10-01T11:45:26.499Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-10-01T11:45:26.499Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpiolib: cdev: fix NULL-pointer dereferences\n\nThere are several places where we can crash the kernel by requesting\nlines, unbinding the GPIO device, then calling any of the system calls\nrelevant to the GPIO character device's annonymous file descriptors:\nioctl(), read(), poll().\n\nWhile I observed it with the GPIO simulator, it will also happen for any\nof the GPIO devices that can be hot-unplugged - for instance any HID GPIO\nexpander (e.g. CP2112).\n\nThis affects both v1 and v2 uAPI.\n\nThis fixes it partially by checking if gdev->chip is not NULL but it\ndoesn't entirely remedy the situation as we still have a race condition\nin which another thread can remove the device after the check."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/gpio/gpiolib-cdev.c"], "versions": [{"version": "d7c51b47ac11e66f547b55640405c1c474642d72", "lessThan": "6d79546622baab843172b52c3af035f83c1b21df", "status": "affected", "versionType": "git"}, {"version": "d7c51b47ac11e66f547b55640405c1c474642d72", "lessThan": "7c755a2d6df511eeb5afba966ac28140f9ea5063", "status": "affected", "versionType": "git"}, {"version": "d7c51b47ac11e66f547b55640405c1c474642d72", "lessThan": "d66f68ac9e7ba46b6b90fbe25155723f2126088a", "status": "affected", "versionType": "git"}, {"version": "d7c51b47ac11e66f547b55640405c1c474642d72", "lessThan": "ac6ce3cd7a3e10a2e37b8970bab81b4d33d5cfc3", "status": "affected", "versionType": "git"}, {"version": "d7c51b47ac11e66f547b55640405c1c474642d72", "lessThan": "533aae7c94dbc2b14301cfd68ae7e0e90f0c8438", "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/gpiolib-cdev.c"], "versions": [{"version": "4.8", "status": "affected"}, {"version": "0", "lessThan": "4.8", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.163", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.86", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0.16", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.2", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.2", "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": "4.8", "versionEndExcluding": "5.10.163"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.8", "versionEndExcluding": "5.15.86"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.8", "versionEndExcluding": "6.0.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.8", "versionEndExcluding": "6.1.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.8", "versionEndExcluding": "6.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/6d79546622baab843172b52c3af035f83c1b21df"}, {"url": "https://git.kernel.org/stable/c/7c755a2d6df511eeb5afba966ac28140f9ea5063"}, {"url": "https://git.kernel.org/stable/c/d66f68ac9e7ba46b6b90fbe25155723f2126088a"}, {"url": "https://git.kernel.org/stable/c/ac6ce3cd7a3e10a2e37b8970bab81b4d33d5cfc3"}, {"url": "https://git.kernel.org/stable/c/533aae7c94dbc2b14301cfd68ae7e0e90f0c8438"}], "title": "gpiolib: cdev: fix NULL-pointer dereferences", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ngpiolib: cdev: fix NULL-pointer dereferences\n\nThere are several places where we can crash the kernel by requesting\nlines, unbinding the GPIO device, then calling any of the system calls\nrelevant to the GPIO character device's annonymous file descriptors:\nioctl(), read(), poll().\n\nWhile I observed it with the GPIO simulator, it will also happen for any\nof the GPIO devices that can be hot-unplugged - for instance any HID GPIO\nexpander (e.g. CP2112).\n\nThis affects both v1 and v2 uAPI.\n\nThis fixes it partially by checking if gdev->chip is not NULL but it\ndoesn't entirely remedy the situation as we still have a race condition\nin which another thread can remove the device after the check."}], "id": "CVE-2022-50453", "lastModified": "2025-10-02T19:12:17.160", "metrics": {}, "published": "2025-10-01T12:15:38.363", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/533aae7c94dbc2b14301cfd68ae7e0e90f0c8438"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6d79546622baab843172b52c3af035f83c1b21df"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/7c755a2d6df511eeb5afba966ac28140f9ea5063"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ac6ce3cd7a3e10a2e37b8970bab81b4d33d5cfc3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d66f68ac9e7ba46b6b90fbe25155723f2126088a"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: gpiolib: cdev: fix NULL-pointer dereferences", "id": "2400743", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2400743"}, "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"}, "details": ["No description is available for this CVE."], "name": "CVE-2022-50453", "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": "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"}, {"cpe": "cpe:/o:redhat:rhivos:1", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat In-Vehicle Operating System 1"}], "public_date": "2025-10-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2022-50453\nhttps://nvd.nist.gov/vuln/detail/CVE-2022-50453\nhttps://lore.kernel.org/linux-cve-announce/2025100117-CVE-2022-50453-204a@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-10-02T08:38:50.137378+00:00", "updated": "2025-10-02T08:38:50.137447+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}