283 lines
13 KiB
JSON
283 lines
13 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-2026-43333",
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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": "2026-05-01T14:12:56.002Z",
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"datePublished": "2026-05-08T13:31:20.107Z",
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"dateUpdated": "2026-11-06T15:42:49.460Z"
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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": "2026-05-23T16:06:46.060Z"
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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\nbpf: reject direct access to nullable PTR_TO_BUF pointers\n\ncheck_mem_access() matches PTR_TO_BUF via base_type() which strips\nPTR_MAYBE_NULL, allowing direct dereference without a null check.\n\nMap iterator ctx->key and ctx->value are PTR_TO_BUF | PTR_MAYBE_NULL.\nOn stop callbacks these are NULL, causing a kernel NULL dereference.\n\nAdd a type_may_be_null() guard to the PTR_TO_BUF branch, matching the\nexisting PTR_TO_BTF_ID pattern."
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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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"kernel/bpf/verifier.c"
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],
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"versions": [
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{
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"version": "b453361384c2db1c703dacb806d5fd36aec4ceca",
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"lessThan": "10bc4a4dcded509c5d5c67d497900c3922c604cd",
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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": "20b2aff4bc15bda809f994761d5719827d66c0b4",
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"lessThan": "21a10c06ffae24cb01fd174a7ab7736001d2ea56",
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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": "20b2aff4bc15bda809f994761d5719827d66c0b4",
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"lessThan": "8755066f7bd0f4ac46a29d1708c7b20894539252",
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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": "20b2aff4bc15bda809f994761d5719827d66c0b4",
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"lessThan": "70abd9d118da2f56beb4ec22e3a29becae373535",
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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": "20b2aff4bc15bda809f994761d5719827d66c0b4",
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"lessThan": "63276547debc4d8a73eefb2c5273b2a905c961b0",
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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": "20b2aff4bc15bda809f994761d5719827d66c0b4",
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"lessThan": "4f6c99dc0420f1a3d671c1b8ab8a7ac84d9cba09",
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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": "20b2aff4bc15bda809f994761d5719827d66c0b4",
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"lessThan": "b0db1accbc7395657c2b79db59fa9fae0d6656f3",
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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": "e982070f8970bb62e69ed7c9cafff886ed200349",
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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": "5.15.37",
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"lessThan": "5.15.203",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "5.16.11",
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"lessThan": "5.17",
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"status": "affected",
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"versionType": "semver"
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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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"kernel/bpf/verifier.c"
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],
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"versions": [
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{
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"version": "5.17",
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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": "5.17",
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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": "5.15.203",
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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": "6.1.168",
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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": "6.6.134",
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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": "6.12.81",
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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": "6.18.22",
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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": "6.19.12",
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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": "5.15.37",
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"versionEndExcluding": "5.15.203"
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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": "5.17",
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"versionEndExcluding": "6.1.168"
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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": "5.17",
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"versionEndExcluding": "6.6.134"
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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": "5.17",
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"versionEndExcluding": "6.12.81"
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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": "5.17",
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"versionEndExcluding": "6.18.22"
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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": "5.17",
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"versionEndExcluding": "6.19.12"
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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": "5.17",
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"versionEndExcluding": "7.0"
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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": "5.16.11"
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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/10bc4a4dcded509c5d5c67d497900c3922c604cd"
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},
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{
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"url": "https://git.kernel.org/stable/c/21a10c06ffae24cb01fd174a7ab7736001d2ea56"
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},
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{
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"url": "https://git.kernel.org/stable/c/8755066f7bd0f4ac46a29d1708c7b20894539252"
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},
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{
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"url": "https://git.kernel.org/stable/c/70abd9d118da2f56beb4ec22e3a29becae373535"
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},
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{
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"url": "https://git.kernel.org/stable/c/63276547debc4d8a73eefb2c5273b2a905c961b0"
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},
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{
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"url": "https://git.kernel.org/stable/c/4f6c99dc0420f1a3d671c1b8ab8a7ac84d9cba09"
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},
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{
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"url": "https://git.kernel.org/stable/c/b0db1accbc7395657c2b79db59fa9fae0d6656f3"
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}
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],
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"title": "bpf: reject direct access to nullable PTR_TO_BUF pointers",
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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-2026-43333",
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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": "2026-11-06T15:35:58.323644Z"
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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": "2026-11-06T15:42:49.460Z"
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}
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}
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]
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}
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} |