{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80748", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-26T14:34:25.790Z", "datePublished": "2026-09-03T08:26:29.532Z", "dateUpdated": "2026-09-03T08:26:29.532Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-09-03T08:26:29.532Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: loongson2: Fix sg iteration in data reorder functions\n\nIn ls2k0500_mmc_reorder_cmd_data() and ls2k2000_mmc_reorder_cmd_data(),\nthe for_each_sg() macro already iterates over the scatterlist entries,\nwith 'sg' pointing to the current entry. However, the code incorrectly\nuses '&sg[i]' and 'sg_dma_len(&sg[i])' inside the loop, which treats\n'sg' as an array base and indexes it again, leading to access of\nwrong sg entries (or out-of-bounds if the list is not an array)."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/mmc/host/loongson2-mmc.c"], "versions": [{"version": "2115772014bdac368317e997ed15016cf2792665", "lessThan": "8f7f7a6d5aed8f346a1c936fba02033c73a337dc", "status": "affected", "versionType": "git"}, {"version": "2115772014bdac368317e997ed15016cf2792665", "lessThan": "db368164383c46f256ed8152a41ae9300e615028", "status": "affected", "versionType": "git"}, {"version": "2115772014bdac368317e997ed15016cf2792665", "lessThan": "00179ed9fbe07799676e2cb63c4e7f0e7cd80a5c", "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/mmc/host/loongson2-mmc.c"], "versions": [{"version": "6.17", "status": "affected"}, {"version": "0", "lessThan": "6.17", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.46", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.10", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "6.17", "versionEndExcluding": "6.18.46"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.1.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.17", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/8f7f7a6d5aed8f346a1c936fba02033c73a337dc"}, {"url": "https://git.kernel.org/stable/c/db368164383c46f256ed8152a41ae9300e615028"}, {"url": "https://git.kernel.org/stable/c/00179ed9fbe07799676e2cb63c4e7f0e7cd80a5c"}], "title": "mmc: loongson2: Fix sg iteration in data reorder functions", "x_generator": {"engine": "bippy-1.2.0"}}}}

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/mmc/host/loongson2-mmc.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "8f7f7a6d5aed8f346a1c936fba02033c73a337dc", "status": "affected", "version": "2115772014bdac368317e997ed15016cf2792665", "versionType": "git"}, {"lessThan": "db368164383c46f256ed8152a41ae9300e615028", "status": "affected", "version": "2115772014bdac368317e997ed15016cf2792665", "versionType": "git"}, {"lessThan": "00179ed9fbe07799676e2cb63c4e7f0e7cd80a5c", "status": "affected", "version": "2115772014bdac368317e997ed15016cf2792665", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/mmc/host/loongson2-mmc.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "6.17"}, {"lessThan": "6.17", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.46", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.10", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmmc: loongson2: Fix sg iteration in data reorder functions\n\nIn ls2k0500_mmc_reorder_cmd_data() and ls2k2000_mmc_reorder_cmd_data(),\nthe for_each_sg() macro already iterates over the scatterlist entries,\nwith 'sg' pointing to the current entry. However, the code incorrectly\nuses '&sg[i]' and 'sg_dma_len(&sg[i])' inside the loop, which treats\n'sg' as an array base and indexes it again, leading to access of\nwrong sg entries (or out-of-bounds if the list is not an array)."}], "id": "CVE-2026-80748", "lastModified": "2026-09-03T13:06:14.410", "metrics": {}, "published": "2026-09-03T13:06:14.410", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/00179ed9fbe07799676e2cb63c4e7f0e7cd80a5c"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8f7f7a6d5aed8f346a1c936fba02033c73a337dc"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/db368164383c46f256ed8152a41ae9300e615028"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2115772014bdac368317e997ed15016cf2792665,8f7f7a6d5aed8f346a1c936fba02033c73a337dc)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2115772014bdac368317e997ed15016cf2792665,db368164383c46f256ed8152a41ae9300e615028)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[2115772014bdac368317e997ed15016cf2792665,00179ed9fbe07799676e2cb63c4e7f0e7cd80a5c)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.17"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.17)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.46,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.10,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-09-03T13:45:04.964557+00:00", "updated": "2026-09-03T16:00:07.626410+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-125", "CWE-727"]}