{"id":"CVE-2025-21783","state":"PUBLISHED","title":"gpiolib: Fix crash on error in gpiochip_get_ngpios()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ngpiolib: Fix crash on error in gpiochip_get_ngpios()\n\nThe gpiochip_get_ngpios() uses chip_*() macros to print messages.\nHowever these macros rely on gpiodev to be initialised and set,\nwhich is not the case when called via bgpio_init(). In such a case\nthe printing messages will crash on NULL pointer dereference.\nReplace chip_*() macros by the respective dev_*() ones to avoid\nsuch crash.","publishedAt":"2025-02-27T02:18:24.980Z","updatedAt":"2026-05-11T21:06:20.690Z","severity":{"score":5.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"CISA-ADP"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"55b2395e4e92adc492c6b30ac109eb78250dcd9d","status":"affected","lessThan":"4d9b2b62e1136d10f661ec4c0c268140b6f74f4f","versionType":"git"},{"version":"55b2395e4e92adc492c6b30ac109eb78250dcd9d","status":"affected","lessThan":"a7052afa9eae2239e25943baa8817a6a56e8aa68","versionType":"git"},{"version":"55b2395e4e92adc492c6b30ac109eb78250dcd9d","status":"affected","lessThan":"189fb76215e479c10731baabb50f1a352d2078f5","versionType":"git"},{"version":"55b2395e4e92adc492c6b30ac109eb78250dcd9d","status":"affected","lessThan":"7b4aebeecbbd5b5fe73e35fad3f62ed21aa7ef44","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpio/gpiolib.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.6","versionType":"semver"},{"version":"6.6.79","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.16","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13.4","status":"unaffected","lessThanOrEqual":"6.13.*","versionType":"semver"},{"version":"6.14","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpio/gpiolib.c"]}],"references":["https://git.kernel.org/stable/c/4d9b2b62e1136d10f661ec4c0c268140b6f74f4f","https://git.kernel.org/stable/c/a7052afa9eae2239e25943baa8817a6a56e8aa68","https://git.kernel.org/stable/c/189fb76215e479c10731baabb50f1a352d2078f5","https://git.kernel.org/stable/c/7b4aebeecbbd5b5fe73e35fad3f62ed21aa7ef44"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:08:39.238Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/21xxx/CVE-2025-21783.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-21783","state":"PUBLISHED","datePublished":"2025-02-27T02:18:24.980Z","dateUpdated":"2026-05-11T21:06:20.690Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-12-29T08:45:45.765Z"},"containers":{"cna":{"title":"gpiolib: Fix crash on error in gpiochip_get_ngpios()","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ngpiolib: Fix crash on error in gpiochip_get_ngpios()\n\nThe gpiochip_get_ngpios() uses chip_*() macros to print messages.\nHowever these macros rely on gpiodev to be initialised and set,\nwhich is not the case when called via bgpio_init(). In such a case\nthe printing messages will crash on NULL pointer dereference.\nReplace chip_*() macros by the respective dev_*() ones to avoid\nsuch crash."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"55b2395e4e92adc492c6b30ac109eb78250dcd9d","status":"affected","lessThan":"4d9b2b62e1136d10f661ec4c0c268140b6f74f4f","versionType":"git"},{"version":"55b2395e4e92adc492c6b30ac109eb78250dcd9d","status":"affected","lessThan":"a7052afa9eae2239e25943baa8817a6a56e8aa68","versionType":"git"},{"version":"55b2395e4e92adc492c6b30ac109eb78250dcd9d","status":"affected","lessThan":"189fb76215e479c10731baabb50f1a352d2078f5","versionType":"git"},{"version":"55b2395e4e92adc492c6b30ac109eb78250dcd9d","status":"affected","lessThan":"7b4aebeecbbd5b5fe73e35fad3f62ed21aa7ef44","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpio/gpiolib.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.6","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.6","versionType":"semver"},{"version":"6.6.79","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.16","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13.4","status":"unaffected","lessThanOrEqual":"6.13.*","versionType":"semver"},{"version":"6.14","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/gpio/gpiolib.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/4d9b2b62e1136d10f661ec4c0c268140b6f74f4f"},{"url":"https://git.kernel.org/stable/c/a7052afa9eae2239e25943baa8817a6a56e8aa68"},{"url":"https://git.kernel.org/stable/c/189fb76215e479c10731baabb50f1a352d2078f5"},{"url":"https://git.kernel.org/stable/c/7b4aebeecbbd5b5fe73e35fad3f62ed21aa7ef44"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:06:20.690Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.6.79"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.12.16"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.13.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6","versionEndExcluding":"6.14"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":5.5,"attackVector":"LOCAL","baseSeverity":"MEDIUM","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","integrityImpact":"NONE","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"NONE"}},{"other":{"type":"ssvc","content":{"id":"CVE-2025-21783","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T19:30:22.231449Z"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-476","lang":"en","type":"CWE","description":"CWE-476 NULL Pointer Dereference"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-01T19:36:39.998Z"}}]}}}