{"id":"CVE-2023-52984","state":"PUBLISHED","title":"net: phy: dp83822: Fix null pointer access on DP83825/DP83826 devices","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: phy: dp83822: Fix null pointer access on DP83825/DP83826 devices\n\nThe probe() function is only used for the DP83822 PHY, leaving the\nprivate data pointer uninitialized for the smaller DP83825/26 models.\nWhile all uses of the private data structure are hidden in 82822 specific\ncallbacks, configuring the interrupt is shared across all models.\nThis causes a NULL pointer dereference on the smaller PHYs as it accesses\nthe private data unchecked. Verifying the pointer avoids that.","publishedAt":"2025-03-27T16:43:22.283Z","updatedAt":"2026-05-11T19:36:23.546Z","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":"5dc39fd5ef35bc6919759fa99246581b1adc6b82","status":"affected","lessThan":"362a2f5531dc0e5b0b5b3e3a541000dbffa75461","versionType":"git"},{"version":"5dc39fd5ef35bc6919759fa99246581b1adc6b82","status":"affected","lessThan":"2cd1e9c013ec56421c58921b1ddf1d2d53bd47fa","versionType":"git"},{"version":"5dc39fd5ef35bc6919759fa99246581b1adc6b82","status":"affected","lessThan":"78901b10522cdf6badf24acf65a892637596bccc","versionType":"git"},{"version":"5dc39fd5ef35bc6919759fa99246581b1adc6b82","status":"affected","lessThan":"422ae7d9c7221e8d4c8526d0f54106307d69d2dc","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/phy/dp83822.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.10","versionType":"semver"},{"version":"5.10.168","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.93","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.11","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/phy/dp83822.c"]}],"references":["https://git.kernel.org/stable/c/362a2f5531dc0e5b0b5b3e3a541000dbffa75461","https://git.kernel.org/stable/c/2cd1e9c013ec56421c58921b1ddf1d2d53bd47fa","https://git.kernel.org/stable/c/78901b10522cdf6badf24acf65a892637596bccc","https://git.kernel.org/stable/c/422ae7d9c7221e8d4c8526d0f54106307d69d2dc"],"weaknesses":["CWE-476"],"ingestedAt":"2026-10-29T20:06:33.064Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2023/52xxx/CVE-2023-52984.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-52984","state":"PUBLISHED","datePublished":"2025-03-27T16:43:22.283Z","dateUpdated":"2026-05-11T19:36:23.546Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-03-27T16:40:15.740Z"},"containers":{"cna":{"title":"net: phy: dp83822: Fix null pointer access on DP83825/DP83826 devices","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: phy: dp83822: Fix null pointer access on DP83825/DP83826 devices\n\nThe probe() function is only used for the DP83822 PHY, leaving the\nprivate data pointer uninitialized for the smaller DP83825/26 models.\nWhile all uses of the private data structure are hidden in 82822 specific\ncallbacks, configuring the interrupt is shared across all models.\nThis causes a NULL pointer dereference on the smaller PHYs as it accesses\nthe private data unchecked. Verifying the pointer avoids that."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"5dc39fd5ef35bc6919759fa99246581b1adc6b82","status":"affected","lessThan":"362a2f5531dc0e5b0b5b3e3a541000dbffa75461","versionType":"git"},{"version":"5dc39fd5ef35bc6919759fa99246581b1adc6b82","status":"affected","lessThan":"2cd1e9c013ec56421c58921b1ddf1d2d53bd47fa","versionType":"git"},{"version":"5dc39fd5ef35bc6919759fa99246581b1adc6b82","status":"affected","lessThan":"78901b10522cdf6badf24acf65a892637596bccc","versionType":"git"},{"version":"5dc39fd5ef35bc6919759fa99246581b1adc6b82","status":"affected","lessThan":"422ae7d9c7221e8d4c8526d0f54106307d69d2dc","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/phy/dp83822.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.10","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.10","versionType":"semver"},{"version":"5.10.168","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.93","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.11","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.2","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/phy/dp83822.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/362a2f5531dc0e5b0b5b3e3a541000dbffa75461"},{"url":"https://git.kernel.org/stable/c/2cd1e9c013ec56421c58921b1ddf1d2d53bd47fa"},{"url":"https://git.kernel.org/stable/c/78901b10522cdf6badf24acf65a892637596bccc"},{"url":"https://git.kernel.org/stable/c/422ae7d9c7221e8d4c8526d0f54106307d69d2dc"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T19:36:23.546Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.10.168"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"5.15.93"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"6.1.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.10","versionEndExcluding":"6.2"}]}]}],"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":{"timestamp":"2025-10-01T17:20:57.142951Z","id":"CVE-2023-52984","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-476","type":"CWE","lang":"en","description":"CWE-476 NULL Pointer Dereference"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-10-01T17:20:59.921Z"}}]}}}