{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98492","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-25T10:25:14.353Z","datePublished":"2026-10-18T15:16:21.208Z","dateUpdated":"2026-10-19T09:20:29.361Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-10-19T09:20:29.361Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: macb: fix dma_alloc_coherent() leak on macb_alloc() error paths\n\nFix 3 leaks in macb_alloc() error paths:\n- Tx buffer allocated but crossing a 4G boundary: Tx leaked.\n- Rx buffer allocation fails: Tx leaked.\n- Rx buffer allocated but crossing a 4G boundary: Tx & Rx leaked.\n\nThis is because our error handling calls macb_free(bp) which in turn\nfrees the buffers stored in bp->queues[0], but nothing has been stored\nin there. Fix by storing allocated buffers into bp->queues[0] ASAP."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/cadence/macb_main.c"],"versions":[{"version":"78d901897b3cae06b38f54e48a2378cf9da21175","lessThan":"bda487567d0b7b15dfa876511085c0666b9efad5","status":"affected","versionType":"git"},{"version":"78d901897b3cae06b38f54e48a2378cf9da21175","lessThan":"259e6cbb6a097da8ced544ee92a6fbde35aa1338","status":"affected","versionType":"git"},{"version":"78d901897b3cae06b38f54e48a2378cf9da21175","lessThan":"23d42b9a3bcd55b17d3b371544fedc708c2397e9","status":"affected","versionType":"git"},{"version":"982a4d9a2e12b693f684eff943043a607628d871","status":"affected","versionType":"git"},{"version":"6.17.3","lessThan":"6.18","status":"affected","versionType":"semver"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/cadence/macb_main.c"],"versions":[{"version":"6.18","status":"affected"},{"version":"0","lessThan":"6.18","status":"unaffected","versionType":"semver"},{"version":"6.18.55","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.9","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","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":"6.18","versionEndExcluding":"6.18.55"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"7.2.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.18","versionEndExcluding":"7.3"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.17.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/bda487567d0b7b15dfa876511085c0666b9efad5"},{"url":"https://git.kernel.org/stable/c/259e6cbb6a097da8ced544ee92a6fbde35aa1338"},{"url":"https://git.kernel.org/stable/c/23d42b9a3bcd55b17d3b371544fedc708c2397e9"}],"title":"net: macb: fix dma_alloc_coherent() leak on macb_alloc() error paths","x_generator":{"engine":"bippy-1.2.0"}}}}