{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98486","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-25T10:25:14.352Z","datePublished":"2026-10-18T15:16:03.002Z","dateUpdated":"2026-10-21T12:55:12.350Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-10-21T12:55:12.350Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: ena: fix MMIO read buffer leak on probe failure\n\nena_device_init() initializes the MMIO read mechanism with\nena_com_mmio_reg_read_request_init(), which allocates a coherent DMA\nbuffer for MMIO read responses.\n\nThe normal removal path releases this buffer through\nena_com_mmio_reg_read_request_destroy(). However, if ena_probe() fails\nafter ena_device_init() succeeds, the error path destroys the admin\nresources and eventually frees ena_dev without destroying the MMIO read\nrequest, leaving the coherent DMA buffer allocated.\n\nCall ena_com_mmio_reg_read_request_destroy() in the probe error path\nbefore releasing the remaining device resources.\n\nThis issue was found by manual code inspection."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/amazon/ena/ena_netdev.c"],"versions":[{"version":"1738cd3ed342294360d6a74d4e58800004bff854","lessThan":"a0f5fd7a285f44fa402242f26feddfe1d4a0fc6c","status":"affected","versionType":"git"},{"version":"1738cd3ed342294360d6a74d4e58800004bff854","lessThan":"7bd3e9a2d0c288e54f51df260d9433163f5fbc1e","status":"affected","versionType":"git"},{"version":"1738cd3ed342294360d6a74d4e58800004bff854","lessThan":"30ff01b4c7e419bb70f40f01dcd7f6af680808b3","status":"affected","versionType":"git"},{"version":"1738cd3ed342294360d6a74d4e58800004bff854","lessThan":"47785f9f638b064ce6e32e8e3b6f1ffd83849fc2","status":"affected","versionType":"git"},{"version":"1738cd3ed342294360d6a74d4e58800004bff854","lessThan":"9476b4468862927297c94c440863cd8ed1e7cc83","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/amazon/ena/ena_netdev.c"],"versions":[{"version":"4.9","status":"affected"},{"version":"0","lessThan":"4.9","status":"unaffected","versionType":"semver"},{"version":"6.6.160","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.112","lessThanOrEqual":"6.12.*","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":"4.9","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"6.12.112"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"6.18.55"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"7.2.9"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9","versionEndExcluding":"7.3"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/a0f5fd7a285f44fa402242f26feddfe1d4a0fc6c"},{"url":"https://git.kernel.org/stable/c/7bd3e9a2d0c288e54f51df260d9433163f5fbc1e"},{"url":"https://git.kernel.org/stable/c/30ff01b4c7e419bb70f40f01dcd7f6af680808b3"},{"url":"https://git.kernel.org/stable/c/47785f9f638b064ce6e32e8e3b6f1ffd83849fc2"},{"url":"https://git.kernel.org/stable/c/9476b4468862927297c94c440863cd8ed1e7cc83"}],"title":"net: ena: fix MMIO read buffer leak on probe failure","x_generator":{"engine":"bippy-1.2.0"}}}}