{"id":"CVE-2025-38726","state":"PUBLISHED","title":"net: ftgmac100: fix potential NULL pointer access in ftgmac100_phy_disconnect","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ftgmac100: fix potential NULL pointer access in ftgmac100_phy_disconnect\n\nAfter the call to phy_disconnect() netdev->phydev is reset to NULL.\nSo fixed_phy_unregister() would be called with a NULL pointer as argument.\nTherefore cache the phy_device before this call.","publishedAt":"2025-09-04T15:33:24.527Z","updatedAt":"2026-05-11T21:33:47.833Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e24a6c874601efb3de6e535895dd8e4f56fa98f1","status":"affected","lessThan":"ae59ec969c07c73f0610f8bd7e648f01e798d222","versionType":"git"},{"version":"e24a6c874601efb3de6e535895dd8e4f56fa98f1","status":"affected","lessThan":"44bcd397ad9cd1a6b25fabb7f5edbee4fb0cfc2e","versionType":"git"},{"version":"e24a6c874601efb3de6e535895dd8e4f56fa98f1","status":"affected","lessThan":"9ad90dd34b4e8e5be1e45a4559f4de0f14e53af2","versionType":"git"},{"version":"e24a6c874601efb3de6e535895dd8e4f56fa98f1","status":"affected","lessThan":"e88fbc30dda1cb7438515303704ceddb3ade4ecd","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/faraday/ftgmac100.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.12","versionType":"semver"},{"version":"6.12.43","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.15.11","status":"unaffected","lessThanOrEqual":"6.15.*","versionType":"semver"},{"version":"6.16.2","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/faraday/ftgmac100.c"]}],"references":["https://git.kernel.org/stable/c/ae59ec969c07c73f0610f8bd7e648f01e798d222","https://git.kernel.org/stable/c/44bcd397ad9cd1a6b25fabb7f5edbee4fb0cfc2e","https://git.kernel.org/stable/c/9ad90dd34b4e8e5be1e45a4559f4de0f14e53af2","https://git.kernel.org/stable/c/e88fbc30dda1cb7438515303704ceddb3ade4ecd"],"weaknesses":[],"ingestedAt":"2026-10-29T20:09:09.358Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/38xxx/CVE-2025-38726.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-38726","state":"PUBLISHED","datePublished":"2025-09-04T15:33:24.527Z","dateUpdated":"2026-05-11T21:33:47.833Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2025-04-16T04:51:24.033Z"},"containers":{"cna":{"title":"net: ftgmac100: fix potential NULL pointer access in ftgmac100_phy_disconnect","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ftgmac100: fix potential NULL pointer access in ftgmac100_phy_disconnect\n\nAfter the call to phy_disconnect() netdev->phydev is reset to NULL.\nSo fixed_phy_unregister() would be called with a NULL pointer as argument.\nTherefore cache the phy_device before this call."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e24a6c874601efb3de6e535895dd8e4f56fa98f1","status":"affected","lessThan":"ae59ec969c07c73f0610f8bd7e648f01e798d222","versionType":"git"},{"version":"e24a6c874601efb3de6e535895dd8e4f56fa98f1","status":"affected","lessThan":"44bcd397ad9cd1a6b25fabb7f5edbee4fb0cfc2e","versionType":"git"},{"version":"e24a6c874601efb3de6e535895dd8e4f56fa98f1","status":"affected","lessThan":"9ad90dd34b4e8e5be1e45a4559f4de0f14e53af2","versionType":"git"},{"version":"e24a6c874601efb3de6e535895dd8e4f56fa98f1","status":"affected","lessThan":"e88fbc30dda1cb7438515303704ceddb3ade4ecd","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/faraday/ftgmac100.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.12","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.12","versionType":"semver"},{"version":"6.12.43","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.15.11","status":"unaffected","lessThanOrEqual":"6.15.*","versionType":"semver"},{"version":"6.16.2","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/faraday/ftgmac100.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/ae59ec969c07c73f0610f8bd7e648f01e798d222"},{"url":"https://git.kernel.org/stable/c/44bcd397ad9cd1a6b25fabb7f5edbee4fb0cfc2e"},{"url":"https://git.kernel.org/stable/c/9ad90dd34b4e8e5be1e45a4559f4de0f14e53af2"},{"url":"https://git.kernel.org/stable/c/e88fbc30dda1cb7438515303704ceddb3ade4ecd"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-05-11T21:33:47.833Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.12.43"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.15.11"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.16.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.12","versionEndExcluding":"6.17"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}