{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-31690", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-03-09T15:48:24.131Z", "datePublished": "2026-04-27T17:34:28.738Z", "dateUpdated": "2026-04-27T17:34:28.738Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-04-27T17:34:28.738Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: thead: Fix buffer overflow and use standard endian macros\n\nAddresses two issues in the TH1520 AON firmware protocol driver:\n\n1. Fix a potential buffer overflow where the code used unsafe pointer\n arithmetic to access the 'mode' field through the 'resource' pointer\n with an offset. This was flagged by Smatch static checker as:\n \"buffer overflow 'data' 2 <= 3\"\n\n2. Replace custom RPC_SET_BE* and RPC_GET_BE* macros with standard\n kernel endianness conversion macros (cpu_to_be16, etc.) for better\n portability and maintainability.\n\nThe functionality was re-tested with the GPU power-up sequence,\nconfirming the GPU powers up correctly and the driver probes\nsuccessfully.\n\n[ 12.702370] powervr ffef400000.gpu: [drm] loaded firmware\npowervr/rogue_36.52.104.182_v1.fw\n[ 12.711043] powervr ffef400000.gpu: [drm] FW version v1.0 (build\n6645434 OS)\n[ 12.719787] [drm] Initialized powervr 1.0.0 for ffef400000.gpu on\nminor 0"}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/firmware/thead,th1520-aon.c", "include/linux/firmware/thead/thead,th1520-aon.h"], "versions": [{"version": "e4b3cbd840e565484d0ad8d260d27c057466ed17", "lessThan": "fbdb43f6bb2a15ed382d6eb0ef82c8b07b0d47bb", "status": "affected", "versionType": "git"}, {"version": "e4b3cbd840e565484d0ad8d260d27c057466ed17", "lessThan": "bd15a5deb5a7251dc1a0cf9186f0253f7eacdb97", "status": "affected", "versionType": "git"}, {"version": "e4b3cbd840e565484d0ad8d260d27c057466ed17", "lessThan": "88c4bd90725557796c15878b7cb70066e9e6b5ab", "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/firmware/thead,th1520-aon.c", "include/linux/firmware/thead/thead,th1520-aon.h"], "versions": [{"version": "6.15", "status": "affected"}, {"version": "0", "lessThan": "6.15", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.23", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.13", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0", "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": "6.15", "versionEndExcluding": "6.18.23"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "6.19.13"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.15", "versionEndExcluding": "7.0"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/fbdb43f6bb2a15ed382d6eb0ef82c8b07b0d47bb"}, {"url": "https://git.kernel.org/stable/c/bd15a5deb5a7251dc1a0cf9186f0253f7eacdb97"}, {"url": "https://git.kernel.org/stable/c/88c4bd90725557796c15878b7cb70066e9e6b5ab"}], "title": "firmware: thead: Fix buffer overflow and use standard endian macros", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: thead: Fix buffer overflow and use standard endian macros\n\nAddresses two issues in the TH1520 AON firmware protocol driver:\n\n1. Fix a potential buffer overflow where the code used unsafe pointer\n arithmetic to access the 'mode' field through the 'resource' pointer\n with an offset. This was flagged by Smatch static checker as:\n \"buffer overflow 'data' 2 <= 3\"\n\n2. Replace custom RPC_SET_BE* and RPC_GET_BE* macros with standard\n kernel endianness conversion macros (cpu_to_be16, etc.) for better\n portability and maintainability.\n\nThe functionality was re-tested with the GPU power-up sequence,\nconfirming the GPU powers up correctly and the driver probes\nsuccessfully.\n\n[ 12.702370] powervr ffef400000.gpu: [drm] loaded firmware\npowervr/rogue_36.52.104.182_v1.fw\n[ 12.711043] powervr ffef400000.gpu: [drm] FW version v1.0 (build\n6645434 OS)\n[ 12.719787] [drm] Initialized powervr 1.0.0 for ffef400000.gpu on\nminor 0"}], "id": "CVE-2026-31690", "lastModified": "2026-04-27T18:32:22.917", "metrics": {}, "published": "2026-04-27T18:16:54.507", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/88c4bd90725557796c15878b7cb70066e9e6b5ab"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bd15a5deb5a7251dc1a0cf9186f0253f7eacdb97"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fbdb43f6bb2a15ed382d6eb0ef82c8b07b0d47bb"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{}