{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-40337","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-04-16T07:20:57.186Z","datePublished":"2025-12-09T04:09:53.808Z","dateUpdated":"2026-05-11T21:47:25.036Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:47:25.036Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: stmmac: Correctly handle Rx checksum offload errors\n\nThe stmmac_rx function would previously set skb->ip_summed to\nCHECKSUM_UNNECESSARY if hardware checksum offload (CoE) was enabled\nand the packet was of a known IP ethertype.\n\nHowever, this logic failed to check if the hardware had actually\nreported a checksum error. The hardware status, indicating a header or\npayload checksum failure, was being ignored at this stage. This could\ncause corrupt packets to be passed up the network stack as valid.\n\nThis patch corrects the logic by checking the `csum_none` status flag,\nwhich is set when the hardware reports a checksum error. If this flag\nis set, skb->ip_summed is now correctly set to CHECKSUM_NONE,\nensuring the kernel's network stack will perform its own validation and\nproperly handle the corrupt packet."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/stmicro/stmmac/stmmac_main.c"],"versions":[{"version":"3c20f72f9108b2fcf30ec63d8a4203736c01ccd0","lessThan":"63fbe0e6413279d5ea5842e2423e351ded547683","status":"affected","versionType":"git"},{"version":"3c20f72f9108b2fcf30ec63d8a4203736c01ccd0","lessThan":"719fcdf29051f7471d5d433475af76219019d33d","status":"affected","versionType":"git"},{"version":"3c20f72f9108b2fcf30ec63d8a4203736c01ccd0","lessThan":"1aa319e0f12d2d761a31556b82a5852c98eb0bea","status":"affected","versionType":"git"},{"version":"3c20f72f9108b2fcf30ec63d8a4203736c01ccd0","lessThan":"ee0aace5f844ef59335148875d05bec8764e71e8","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/ethernet/stmicro/stmmac/stmmac_main.c"],"versions":[{"version":"3.2","status":"affected"},{"version":"0","lessThan":"3.2","status":"unaffected","versionType":"semver"},{"version":"6.6.117","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.58","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.17.8","lessThanOrEqual":"6.17.*","status":"unaffected","versionType":"semver"},{"version":"6.18","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":"3.2","versionEndExcluding":"6.6.117"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.2","versionEndExcluding":"6.12.58"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.2","versionEndExcluding":"6.17.8"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"3.2","versionEndExcluding":"6.18"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/63fbe0e6413279d5ea5842e2423e351ded547683"},{"url":"https://git.kernel.org/stable/c/719fcdf29051f7471d5d433475af76219019d33d"},{"url":"https://git.kernel.org/stable/c/1aa319e0f12d2d761a31556b82a5852c98eb0bea"},{"url":"https://git.kernel.org/stable/c/ee0aace5f844ef59335148875d05bec8764e71e8"}],"title":"net: stmmac: Correctly handle Rx checksum offload errors","x_generator":{"engine":"bippy-1.2.0"}}}}