{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-53551", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-10-04T15:14:15.922Z", "datePublished": "2025-10-04T15:16:57.736Z", "dateUpdated": "2026-05-11T19:47:09.678Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:47:09.678Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: gadget: u_serial: Add null pointer check in gserial_resume\n\nConsider a case where gserial_disconnect has already cleared\ngser->ioport. And if a wakeup interrupt triggers afterwards,\ngserial_resume gets called, which will lead to accessing of\ngser->ioport and thus causing null pointer dereference.Add\na null pointer check to prevent this.\n\nAdded a static spinlock to prevent gser->ioport from becoming\nnull after the newly added check."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/usb/gadget/function/u_serial.c"], "versions": [{"version": "aba3a8d01d623a5efef48ab8e78752d58d4c90c3", "lessThan": "c5360eec648bd506afa304ae4a71f82e13d41897", "status": "affected", "versionType": "git"}, {"version": "aba3a8d01d623a5efef48ab8e78752d58d4c90c3", "lessThan": "3b24c980dc07be4550a9d1450ed7057f882530e5", "status": "affected", "versionType": "git"}, {"version": "aba3a8d01d623a5efef48ab8e78752d58d4c90c3", "lessThan": "ec357cd3e8af614855d286dd378725cdc7264df6", "status": "affected", "versionType": "git"}, {"version": "aba3a8d01d623a5efef48ab8e78752d58d4c90c3", "lessThan": "44e004f757a7ae13dfebaadbcfdb1a6f98c10377", "status": "affected", "versionType": "git"}, {"version": "aba3a8d01d623a5efef48ab8e78752d58d4c90c3", "lessThan": "5ec63fdbca604568890c577753c6f66c5b3ef0b5", "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/usb/gadget/function/u_serial.c"], "versions": [{"version": "5.8", "status": "affected"}, {"version": "0", "lessThan": "5.8", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.171", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.97", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.15", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.2.2", "lessThanOrEqual": "6.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.3", "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": "5.8", "versionEndExcluding": "5.10.171"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "5.15.97"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.1.15"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.2.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.8", "versionEndExcluding": "6.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/c5360eec648bd506afa304ae4a71f82e13d41897"}, {"url": "https://git.kernel.org/stable/c/3b24c980dc07be4550a9d1450ed7057f882530e5"}, {"url": "https://git.kernel.org/stable/c/ec357cd3e8af614855d286dd378725cdc7264df6"}, {"url": "https://git.kernel.org/stable/c/44e004f757a7ae13dfebaadbcfdb1a6f98c10377"}, {"url": "https://git.kernel.org/stable/c/5ec63fdbca604568890c577753c6f66c5b3ef0b5"}], "title": "usb: gadget: u_serial: Add null pointer check in gserial_resume", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

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{"bugzilla": {"description": "kernel: usb: gadget: u_serial: Add null pointer check in gserial_resume", "id": "2401481", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2401481"}, "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"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\nusb: gadget: u_serial: Add null pointer check in gserial_resume\nConsider a case where gserial_disconnect has already cleared\ngser->ioport. And if a wakeup interrupt triggers afterwards,\ngserial_resume gets called, which will lead to accessing of\ngser->ioport and thus causing null pointer dereference.Add\na null pointer check to prevent this.\nAdded a static spinlock to prevent gser->ioport from becoming\nnull after the newly added check."], "name": "CVE-2023-53551", "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"}, {"cpe": "cpe:/o:redhat:rhivos:1", "fix_state": "Affected", "package_name": "kernel", "product_name": "Red Hat In-Vehicle Operating System 1"}], "public_date": "2025-10-04T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53551\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53551\nhttps://lore.kernel.org/linux-cve-announce/2025100447-CVE-2023-53551-4afc@gregkh/T"], "threat_severity": "Important"}

{"created": "2025-10-06T14:41:22.547515+00:00", "updated": "2025-10-06T14:41:22.547582+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}