{"id":"CVE-2026-43034","state":"PUBLISHED","title":"bnxt_en: set backing store type from query type","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: set backing store type from query type\n\nbnxt_hwrm_func_backing_store_qcaps_v2() stores resp->type from the\nfirmware response in ctxm->type and later uses that value to index\nfixed backing-store metadata arrays such as ctx_arr[] and\nbnxt_bstore_to_trace[].\n\nctxm->type is fixed by the current backing-store query type and matches\nthe array index of ctx->ctx_arr. Set ctxm->type from the current loop\nvariable instead of depending on resp->type.\n\nAlso update the loop to advance type from next_valid_type in the for\nstatement, which keeps the control flow simpler for non-valid and\nunchanged entries.","publishedAt":"2026-05-01T14:15:33.260Z","updatedAt":"2026-10-21T12:39:53.398Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6a4d0774f02d61f8c75ffe2e38a8553410fe52e9","status":"affected","lessThan":"c66a27ca534580de1d28cf568f59fe5f50d43e15","versionType":"git"},{"version":"6a4d0774f02d61f8c75ffe2e38a8553410fe52e9","status":"affected","lessThan":"c8d53b70166d1dc463ef42adb7293e1a770822c7","versionType":"git"},{"version":"6a4d0774f02d61f8c75ffe2e38a8553410fe52e9","status":"affected","lessThan":"29732b68a6816a815d58e9ab229844c23617e1e0","versionType":"git"},{"version":"6a4d0774f02d61f8c75ffe2e38a8553410fe52e9","status":"affected","lessThan":"4ee937107d52f9e5c350e4b5e629760e328b3d9f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/broadcom/bnxt/bnxt.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.8","versionType":"semver"},{"version":"6.12.114","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.22","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.12","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","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/broadcom/bnxt/bnxt.c"]}],"references":["https://git.kernel.org/stable/c/c66a27ca534580de1d28cf568f59fe5f50d43e15","https://git.kernel.org/stable/c/c8d53b70166d1dc463ef42adb7293e1a770822c7","https://git.kernel.org/stable/c/29732b68a6816a815d58e9ab229844c23617e1e0","https://git.kernel.org/stable/c/4ee937107d52f9e5c350e4b5e629760e328b3d9f"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/43xxx/CVE-2026-43034.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43034","state":"PUBLISHED","datePublished":"2026-05-01T14:15:33.260Z","dateUpdated":"2026-10-21T12:39:53.398Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-01T14:12:55.977Z"},"containers":{"cna":{"title":"bnxt_en: set backing store type from query type","descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt_en: set backing store type from query type\n\nbnxt_hwrm_func_backing_store_qcaps_v2() stores resp->type from the\nfirmware response in ctxm->type and later uses that value to index\nfixed backing-store metadata arrays such as ctx_arr[] and\nbnxt_bstore_to_trace[].\n\nctxm->type is fixed by the current backing-store query type and matches\nthe array index of ctx->ctx_arr. Set ctxm->type from the current loop\nvariable instead of depending on resp->type.\n\nAlso update the loop to advance type from next_valid_type in the for\nstatement, which keeps the control flow simpler for non-valid and\nunchanged entries."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"6a4d0774f02d61f8c75ffe2e38a8553410fe52e9","status":"affected","lessThan":"c66a27ca534580de1d28cf568f59fe5f50d43e15","versionType":"git"},{"version":"6a4d0774f02d61f8c75ffe2e38a8553410fe52e9","status":"affected","lessThan":"c8d53b70166d1dc463ef42adb7293e1a770822c7","versionType":"git"},{"version":"6a4d0774f02d61f8c75ffe2e38a8553410fe52e9","status":"affected","lessThan":"29732b68a6816a815d58e9ab229844c23617e1e0","versionType":"git"},{"version":"6a4d0774f02d61f8c75ffe2e38a8553410fe52e9","status":"affected","lessThan":"4ee937107d52f9e5c350e4b5e629760e328b3d9f","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/ethernet/broadcom/bnxt/bnxt.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.8","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.8","versionType":"semver"},{"version":"6.12.114","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.22","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.12","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","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/broadcom/bnxt/bnxt.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/c66a27ca534580de1d28cf568f59fe5f50d43e15"},{"url":"https://git.kernel.org/stable/c/c8d53b70166d1dc463ef42adb7293e1a770822c7"},{"url":"https://git.kernel.org/stable/c/29732b68a6816a815d58e9ab229844c23617e1e0"},{"url":"https://git.kernel.org/stable/c/4ee937107d52f9e5c350e4b5e629760e328b3d9f"}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-21T12:39:53.398Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.12.114"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.18.22"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.19.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"7.0"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}}}}}