143 lines
7.2 KiB
JSON
143 lines
7.2 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-2026-53370",
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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": "2026-06-09T07:44:35.401Z",
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"datePublished": "2026-07-19T09:10:30.990Z",
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"dateUpdated": "2026-07-19T09:10:30.990Z"
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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": "2026-07-19T09:10:30.990Z"
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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\nperf/x86/intel: Improve validation and configuration of ACR masks\n\nCurrently there are several issues on the user space ACR mask validation\nand configuration.\n- The validation for user space ACR mask (attr.config2) is incomplete,\n e.g., the ACR mask could include the index which belongs to another\n ACR events group, but it's not validated.\n- An early return on an invalid ACR mask caused all subsequent ACR groups\n to be skipped.\n- The stale hardware ACR mask (hw.config1) is not cleared before setting\n new hardware ACR mask.\n\nThe following changes address all of the above issues.\n- Figure out the event index group of an ACR group. Any bits in the\n user-space mask not present in the index group are now dropped.\n- Instead of an early return on invalid bits, drop only the invalid\n portions and continue iterating through all ACR events to ensure full\n configuration.\n- Explicitly clear the stale hardware ACR mask for each event prior to\n writing the new configuration.\n\nBesides, a non-leader event member of ACR group could be disabled in\ntheory. This could cause bit-shifting errors in the acr_mask of remaining\ngroup members. But since ACR sampling requires all events to be active,\nthis should not be a big concern in real use case. Add a \"FIXME\" comment\nto notice this risk."
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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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"arch/x86/events/intel/core.c"
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],
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"versions": [
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{
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"version": "ec980e4facef8110f6fce27e5b6344660117f01f",
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"lessThan": "aab56b95bee3ff79176b13443cd9d7cfe9747df0",
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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": "ec980e4facef8110f6fce27e5b6344660117f01f",
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"lessThan": "c05e01cef47d9b4969eae2dcf9467e2a555bcb4f",
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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": "ec980e4facef8110f6fce27e5b6344660117f01f",
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"lessThan": "5ad732a56be46aabf158c16aa0c095291727aaef",
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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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"arch/x86/events/intel/core.c"
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],
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"versions": [
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{
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"version": "6.16",
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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": "6.16",
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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": "6.18.30",
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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": "7.0.7",
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"lessThanOrEqual": "7.0.*",
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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": "7.1",
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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": "6.16",
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"versionEndExcluding": "6.18.30"
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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": "6.16",
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"versionEndExcluding": "7.0.7"
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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": "6.16",
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"versionEndExcluding": "7.1"
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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/aab56b95bee3ff79176b13443cd9d7cfe9747df0"
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},
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{
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"url": "https://git.kernel.org/stable/c/c05e01cef47d9b4969eae2dcf9467e2a555bcb4f"
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},
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{
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"url": "https://git.kernel.org/stable/c/5ad732a56be46aabf158c16aa0c095291727aaef"
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}
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],
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"title": "perf/x86/intel: Improve validation and configuration of ACR masks",
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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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}
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} |