{"id":"CVE-2023-52984","summary":"net: phy: dp83822: Fix null pointer access on DP83825/DP83826 devices","details":"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.","modified":"2026-04-02T09:43:31.708975Z","published":"2025-03-27T16:43:22.283Z","related":["SUSE-SU-2025:1176-1","SUSE-SU-2025:1183-1","SUSE-SU-2025:1195-1","SUSE-SU-2025:1241-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52984.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2cd1e9c013ec56421c58921b1ddf1d2d53bd47fa"},{"type":"WEB","url":"https://git.kernel.org/stable/c/362a2f5531dc0e5b0b5b3e3a541000dbffa75461"},{"type":"WEB","url":"https://git.kernel.org/stable/c/422ae7d9c7221e8d4c8526d0f54106307d69d2dc"},{"type":"WEB","url":"https://git.kernel.org/stable/c/78901b10522cdf6badf24acf65a892637596bccc"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/52xxx/CVE-2023-52984.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-52984"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5dc39fd5ef35bc6919759fa99246581b1adc6b82"},{"fixed":"362a2f5531dc0e5b0b5b3e3a541000dbffa75461"},{"fixed":"2cd1e9c013ec56421c58921b1ddf1d2d53bd47fa"},{"fixed":"78901b10522cdf6badf24acf65a892637596bccc"},{"fixed":"422ae7d9c7221e8d4c8526d0f54106307d69d2dc"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-52984.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}