{"id":"CVE-2025-39875","state":"PUBLISHED","title":"igb: Fix NULL pointer dereference in ethtool loopback test","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nigb: Fix NULL pointer dereference in ethtool loopback test\n\nThe igb driver currently causes a NULL pointer dereference when executing\nthe ethtool loopback test. This occurs because there is no associated\nq_vector for the test ring when it is set up, as interrupts are typically\nnot added to the test rings.\n\nSince commit 5ef44b3cb43b removed the napi_id assignment in\n__xdp_rxq_info_reg(), there is no longer a need to pass a napi_id to it.\nTherefore, simply use 0 as the last parameter.","publishedAt":"2025-09-23T06:00:47.198Z","updatedAt":"2026-05-11T21:38:07.128Z","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":"2c6196013f84651772388a86dfd4bb033d0c0d45","status":"affected","lessThan":"473be7d39efd3be383e9c0c8e44b53508b4ffeb5","versionType":"git"},{"version":"2c6196013f84651772388a86dfd4bb033d0c0d45","status":"affected","lessThan":"75871a525a596ff4d16c4aebc0018f8d0923c9b1","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/intel/igb/igb_main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.14","versionType":"semver"},{"version":"6.16.8","status":"unaffected","lessThanOrEqual":"6.16.*","versionType":"semver"},{"version":"6.17","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/intel/igb/igb_main.c"]}],"references":["https://git.kernel.org/stable/c/473be7d39efd3be383e9c0c8e44b53508b4ffeb5","https://git.kernel.org/stable/c/75871a525a596ff4d16c4aebc0018f8d0923c9b1"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/39xxx/CVE-2025-39875.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-39875","state":"PUBLISHED","datePublished":"2025-09-23T06:00:47.198Z","dateUpdated":"2026-05-11T21:38:07.128Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T07:20:57.144Z"},"containers":{"cna":{"title":"igb: Fix NULL pointer dereference in ethtool loopback test","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nigb: Fix NULL pointer dereference in ethtool loopback test\n\nThe igb driver currently causes a NULL pointer dereference when executing\nthe ethtool loopback test. This occurs because there is no associated\nq_vector for the test ring when it is set up, as interrupts are typically\nnot added to the test rings.\n\nSince commit 5ef44b3cb43b removed the napi_id assignment in\n__xdp_rxq_info_reg(), there is no longer a need to pass a napi_id to it.\nTherefore, simply use 0 as the last parameter."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"2c6196013f84651772388a86dfd4bb033d0c0d45","status":"affected","lessThan":"473be7d39efd3be383e9c0c8e44b53508b4ffeb5","versionType":"git"},{"version":"2c6196013f84651772388a86dfd4bb033d0c0d45","status":"affected","lessThan":"75871a525a596ff4d16c4aebc0018f8d0923c9b1","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/intel/igb/igb_main.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.14","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.14","versionType":"semver"},{"version":"6.16.8","status":"unaffected","lessThanOrEqual":"6.16.*","versionType":"semver"},{"version":"6.17","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/intel/igb/igb_main.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/473be7d39efd3be383e9c0c8e44b53508b4ffeb5"},{"url":"https://git.kernel.org/stable/c/75871a525a596ff4d16c4aebc0018f8d0923c9b1"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:38:07.128Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14","versionEndExcluding":"6.16.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.14","versionEndExcluding":"6.17"}]}]}],"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-2025-39875","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"version":"2.0.3","timestamp":"2026-01-14T19:24:47.546370Z"}}}],"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":"2026-01-14T19:33:12.155Z"}}]}}}