286 lines
14 KiB
JSON
286 lines
14 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-43266",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2026-05-01T14:12:55.997Z",
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"datePublished": "2026-05-06T11:28:52.238Z",
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"dateUpdated": "2026-11-06T15:42:45.450Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T22:21:14.159Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nEFI/CPER: don't go past the ARM processor CPER record buffer\n\nThere's a logic inside GHES/CPER to detect if the section_length\nis too small, but it doesn't detect if it is too big.\n\nCurrently, if the firmware receives an ARM processor CPER record\nstating that a section length is big, kernel will blindly trust\nsection_length, producing a very long dump. For instance, a 67\nbytes record with ERR_INFO_NUM set 46198 and section length\nset to 854918320 would dump a lot of data going a way past the\nfirmware memory-mapped area.\n\nFix it by adding a logic to prevent it to go past the buffer\nif ERR_INFO_NUM is too big, making it report instead:\n\n\t[Hardware Error]: Hardware error from APEI Generic Hardware Error Source: 1\n\t[Hardware Error]: event severity: recoverable\n\t[Hardware Error]: Error 0, type: recoverable\n\t[Hardware Error]: section_type: ARM processor error\n\t[Hardware Error]: MIDR: 0xff304b2f8476870a\n\t[Hardware Error]: section length: 854918320, CPER size: 67\n\t[Hardware Error]: section length is too big\n\t[Hardware Error]: firmware-generated error record is incorrect\n\t[Hardware Error]: ERR_INFO_NUM is 46198\n\n[ rjw: Subject and changelog tweaks ]"
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/firmware/efi/cper-arm.c",
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"drivers/firmware/efi/cper.c",
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"include/linux/cper.h"
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],
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"versions": [
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{
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"version": "2f74f09bce4f8d0236f20174a6daae63e10fe733",
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"lessThan": "c80113dcfc807308f5ab33847fae77e07531aeb8",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "2f74f09bce4f8d0236f20174a6daae63e10fe733",
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"lessThan": "ca2aad8771aa9091bc9e42e7d546bd40b72ddcd4",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "2f74f09bce4f8d0236f20174a6daae63e10fe733",
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"lessThan": "a68d22902a6916e10ee235fee609239004e129d0",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "2f74f09bce4f8d0236f20174a6daae63e10fe733",
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"lessThan": "64eb63f573f497553e1a0c388bbcdd639e0f0704",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "2f74f09bce4f8d0236f20174a6daae63e10fe733",
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"lessThan": "be10c1bdf64a39832998f54900aa309b3917abcf",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "2f74f09bce4f8d0236f20174a6daae63e10fe733",
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"lessThan": "25b290624b0e3d2f0f90238709ee0b6009b9fde8",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "2f74f09bce4f8d0236f20174a6daae63e10fe733",
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"lessThan": "45766863baf899059e75595dd3cb1116467f2095",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "2f74f09bce4f8d0236f20174a6daae63e10fe733",
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"lessThan": "eae21beecb95a3b69ee5c38a659f774e171d730e",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/firmware/efi/cper-arm.c",
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"drivers/firmware/efi/cper.c",
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"include/linux/cper.h"
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],
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"versions": [
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{
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"version": "4.13",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "4.13",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.252",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.202",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.1.165",
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"lessThanOrEqual": "6.1.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.6.128",
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"lessThanOrEqual": "6.6.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.12.75",
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.18.16",
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"lessThanOrEqual": "6.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "6.19.6",
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"lessThanOrEqual": "6.19.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "7.0",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.13",
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"versionEndExcluding": "5.10.252"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.13",
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"versionEndExcluding": "5.15.202"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.13",
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"versionEndExcluding": "6.1.165"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.13",
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"versionEndExcluding": "6.6.128"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.13",
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"versionEndExcluding": "6.12.75"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.13",
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"versionEndExcluding": "6.18.16"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.13",
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"versionEndExcluding": "6.19.6"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.13",
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"versionEndExcluding": "7.0"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/c80113dcfc807308f5ab33847fae77e07531aeb8"
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},
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{
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"url": "https://git.kernel.org/stable/c/ca2aad8771aa9091bc9e42e7d546bd40b72ddcd4"
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},
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{
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"url": "https://git.kernel.org/stable/c/a68d22902a6916e10ee235fee609239004e129d0"
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},
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{
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"url": "https://git.kernel.org/stable/c/64eb63f573f497553e1a0c388bbcdd639e0f0704"
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},
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{
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"url": "https://git.kernel.org/stable/c/be10c1bdf64a39832998f54900aa309b3917abcf"
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},
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{
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"url": "https://git.kernel.org/stable/c/25b290624b0e3d2f0f90238709ee0b6009b9fde8"
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},
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{
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"url": "https://git.kernel.org/stable/c/45766863baf899059e75595dd3cb1116467f2095"
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},
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{
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"url": "https://git.kernel.org/stable/c/eae21beecb95a3b69ee5c38a659f774e171d730e"
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}
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],
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"title": "EFI/CPER: don't go past the ARM processor CPER record buffer",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2026-43266",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-11-06T15:32:39.290621Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-11-06T15:42:45.450Z"
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}
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}
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]
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}
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} |