{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-54065","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-12-24T12:21:05.092Z","datePublished":"2025-12-24T12:23:10.745Z","dateUpdated":"2026-05-11T19:54:48.010Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:54:48.010Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: dsa: realtek: fix out-of-bounds access\n\nThe probe function sets priv->chip_data to (void *)priv + sizeof(*priv)\nwith the expectation that priv has enough trailing space.\n\nHowever, only realtek-smi actually allocated this chip_data space.\nDo likewise in realtek-mdio to fix out-of-bounds accesses.\n\nThese accesses likely went unnoticed so far, because of an (unused)\nbuf[4096] member in struct realtek_priv, which caused kmalloc to\nround up the allocated buffer to a big enough size, so nothing of\nvalue was overwritten. With a different allocator (like in the barebox\nbootloader port of the driver) or with KASAN, the memory corruption\nbecomes quickly apparent."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/dsa/realtek/realtek-mdio.c"],"versions":[{"version":"aac94001067da183455d6d37959892744fa01d9d","lessThan":"cc0f9bb99735d2b68fac68f37b585d615728ce5b","status":"affected","versionType":"git"},{"version":"aac94001067da183455d6d37959892744fa01d9d","lessThan":"fe668aa499b4b95425044ba11af9609db6ecf466","status":"affected","versionType":"git"},{"version":"aac94001067da183455d6d37959892744fa01d9d","lessThan":"b93eb564869321d0dffaf23fcc5c88112ed62466","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/dsa/realtek/realtek-mdio.c"],"versions":[{"version":"5.18","status":"affected"},{"version":"0","lessThan":"5.18","status":"unaffected","versionType":"semver"},{"version":"6.1.23","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.2.10","lessThanOrEqual":"6.2.*","status":"unaffected","versionType":"semver"},{"version":"6.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.1.23"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.2.10"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/cc0f9bb99735d2b68fac68f37b585d615728ce5b"},{"url":"https://git.kernel.org/stable/c/fe668aa499b4b95425044ba11af9609db6ecf466"},{"url":"https://git.kernel.org/stable/c/b93eb564869321d0dffaf23fcc5c88112ed62466"}],"title":"net: dsa: realtek: fix out-of-bounds access","x_generator":{"engine":"bippy-1.2.0"}}}}