{"id":"CVE-2025-21798","state":"PUBLISHED","title":"firewire: test: Fix potential null dereference in firewire kunit test","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirewire: test: Fix potential null dereference in firewire kunit test\n\nkunit_kzalloc() may return a NULL pointer, dereferencing it without\nNULL check may lead to NULL dereference.\nAdd a NULL check for test_state.","publishedAt":"2025-02-27T20:00:53.557Z","updatedAt":"2026-05-11T21:06:42.344Z","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":"1c8506d62624fbc57db75414a387f365da8422e9","status":"affected","lessThan":"c6896bf4c611c3dd126f3e03685f2360a18b3d6f","versionType":"git"},{"version":"1c8506d62624fbc57db75414a387f365da8422e9","status":"affected","lessThan":"70fcb25472d90dd3b87cbee74b9eb68670b0c7b8","versionType":"git"},{"version":"1c8506d62624fbc57db75414a387f365da8422e9","status":"affected","lessThan":"352fafe97784e81a10a7c74bd508f71a19b53c2a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firewire/device-attribute-test.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.8","versionType":"semver"},{"version":"6.12.13","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13.2","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/firewire/device-attribute-test.c"]}],"references":["https://git.kernel.org/stable/c/c6896bf4c611c3dd126f3e03685f2360a18b3d6f","https://git.kernel.org/stable/c/70fcb25472d90dd3b87cbee74b9eb68670b0c7b8","https://git.kernel.org/stable/c/352fafe97784e81a10a7c74bd508f71a19b53c2a"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:08:39.238Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/21xxx/CVE-2025-21798.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-21798","state":"PUBLISHED","datePublished":"2025-02-27T20:00:53.557Z","dateUpdated":"2026-05-11T21:06:42.344Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2024-12-29T08:45:45.770Z"},"containers":{"cna":{"title":"firewire: test: Fix potential null dereference in firewire kunit test","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfirewire: test: Fix potential null dereference in firewire kunit test\n\nkunit_kzalloc() may return a NULL pointer, dereferencing it without\nNULL check may lead to NULL dereference.\nAdd a NULL check for test_state."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"1c8506d62624fbc57db75414a387f365da8422e9","status":"affected","lessThan":"c6896bf4c611c3dd126f3e03685f2360a18b3d6f","versionType":"git"},{"version":"1c8506d62624fbc57db75414a387f365da8422e9","status":"affected","lessThan":"70fcb25472d90dd3b87cbee74b9eb68670b0c7b8","versionType":"git"},{"version":"1c8506d62624fbc57db75414a387f365da8422e9","status":"affected","lessThan":"352fafe97784e81a10a7c74bd508f71a19b53c2a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/firewire/device-attribute-test.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.8","versionType":"semver"},{"version":"6.12.13","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.13.2","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/firewire/device-attribute-test.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/c6896bf4c611c3dd126f3e03685f2360a18b3d6f"},{"url":"https://git.kernel.org/stable/c/70fcb25472d90dd3b87cbee74b9eb68670b0c7b8"},{"url":"https://git.kernel.org/stable/c/352fafe97784e81a10a7c74bd508f71a19b53c2a"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:06:42.344Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.12.13"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.13.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","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-2025-21798","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2025-10-01T19:28:45.431282Z"}}}],"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":"2025-10-01T19:36:38.768Z"}}]}}}