{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-31545", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-03-09T15:48:24.114Z", "datePublished": "2026-04-24T14:33:13.885Z", "dateUpdated": "2026-04-24T14:33:13.885Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-04-24T14:33:13.885Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nNFC: nxp-nci: allow GPIOs to sleep\n\nAllow the firmware and enable GPIOs to sleep.\n\nThis fixes a `WARN_ON' and allows the driver to operate GPIOs which are\nconnected to I2C GPIO expanders.\n\n-- >8 --\nkernel: WARNING: CPU: 3 PID: 2636 at drivers/gpio/gpiolib.c:3880 gpiod_set_value+0x88/0x98\n-- >8 --"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", 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{"bugzilla": {"description": "kernel: NFC: nxp-nci: allow GPIOs to sleep", "id": "2461472", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2461472"}, "csaw": false, "cwe": "CWE-372", "details": ["A flaw was found in the Linux kernel's NFC (Near Field Communication) subsystem, specifically within the `nxp-nci` driver. This flaw prevented General Purpose Input/Output (GPIO) pins from entering a sleep state, leading to a kernel `WARN_ON` condition. This issue could potentially cause system instability or unexpected behavior, impacting the reliability of the system."], "name": "CVE-2026-31545", "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": "2026-04-24T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-31545\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-31545\nhttps://lore.kernel.org/linux-cve-announce/2026042424-CVE-2026-31545-ed19@gregkh/T"]}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[43201767b44cbd873c60dbd2acd370147588cb18,0c2320c3c860d281cbc2f49fc574c1947a6b9e2a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[43201767b44cbd873c60dbd2acd370147588cb18,2a175bc3c338c6b2bc55004e93dd35a2467bdca2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[43201767b44cbd873c60dbd2acd370147588cb18,c24dcac1a9d1b4fd164898df0c2f5b0adbf81a78)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[43201767b44cbd873c60dbd2acd370147588cb18,70662874f646871c2f08ef1cf2544ba9a5f71b96)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[43201767b44cbd873c60dbd2acd370147588cb18,548a1bfe591364e63bce4af7c5802bb434efdaf8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[43201767b44cbd873c60dbd2acd370147588cb18,4de9ed2ea22d611b4149969266b45a86ea8daf35)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[43201767b44cbd873c60dbd2acd370147588cb18,783f05e560d761dee7ff602b97edb0e54f2e9727)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[43201767b44cbd873c60dbd2acd370147588cb18,55dc632ab2ac2889b15995a9eef56c753d48ebc7)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "5.4"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,5.4)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.253,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.203,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.167,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.130,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.78,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.20,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.10,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "analysis": {"en": {"generated_at": "2026-04-28T23:45:21.400984+00:00", "value": {"mitigation_remediation": ["Update to a Linux kernel release that contains the new nxp\u2011nci driver commit that allows GPIOs to sleep without triggering a WARN_ON.", "If a kernel update is not immediately possible, disable the nxp\u2011nci driver or block usage of the affected GPIOs until the patch is applied to avoid the WARN_ON condition.", "Continuously monitor kernel log output for any WARN_ON entries related to GPIOD or the NXP driver to detect lingering issues."], "summary": {"action": "Assess", "impact": "Kernel warning with no confirmed exploit."}, "threat_synthesis": {"affected_systems": "Any system running a Linux kernel that includes the nxp-nci NFC driver is affected. The problem is present in kernel versions prior to the commit that introduced the fix; the exact version ranges are not specified in the advisory.", "description_and_impact": "In the Linux kernel, the NXP NFC NCI driver contained a logic error that prevented certain GPIOs from sleeping, causing a WARN_ON and disabling operation of GPIOs connected to I2C expanders. The patch removes the warning and allows normal operation. No evidence of direct integrity, confidentiality, or availability compromise is documented; the issue is classified under CWE-372 and the ancillary NVD-CWE-noinfo, indicating potential defensive instrumentation problems rather than a clear attack vector.", "risk_and_exploitability": "The CVSS score of 5.5 places the vulnerability in the medium severity range. The EPSS score is below 1\u202f%, and the vulnerability is not listed in the CISA KEV catalog, indicating a very low likelihood of exploitation. No exploit code or proof\u2011of\u2011concept has been reported, and the described issue affects only internal driver behavior."}}}}, "created": "2026-04-27T19:15:11.624553+00:00", "updated": "2026-04-29T00:00:13.783002+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}