210 lines
10 KiB
JSON
210 lines
10 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-2026-97587",
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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": "2026-09-24T16:01:01.157Z",
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"datePublished": "2026-09-25T10:22:06.177Z",
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"dateUpdated": "2026-10-30T12:37:30.665Z"
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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": "2026-10-30T12:37:30.665Z"
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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: RISC-V: store available counter mask as bitmap\n\nThe available-counter mask was a single unsigned long, but iteration\nuses RISCV_MAX_COUNTERS, which is 64. On RV32 that reads past the object.\nFilling with an unsigned-long bit at index 32 and above is also wrong.\n\nUse DECLARE_BITMAP and set_bit/bitmap helpers. Walk each bitmap word\ninto CFG_MATCH when checking events, when allocating an index, and when\nstopping all counters. Set the counter base to i times BITS_PER_LONG.\nShare the CFG_MATCH ecall through a small helper so the 32-bit argument\nsplit is not duplicated. On qemu-system-riscv32 the probe bitmap has bits\nabove XLEN set, so the first word alone is not enough.\n\n[pjw@kernel.org: updated to apply; fixed checkpatch.pl issues]"
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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/perf/riscv_pmu_legacy.c",
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"drivers/perf/riscv_pmu_sbi.c",
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"include/linux/perf/riscv_pmu.h"
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],
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"versions": [
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{
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"version": "e9991434596f5373dfd75857b445eb92a9253c56",
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"lessThan": "433249a4de52ecda40ffa9c466cec1312e62826f",
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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": "e9991434596f5373dfd75857b445eb92a9253c56",
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"lessThan": "5a1b6379eed5b13eac0228b605b0bed988e547e9",
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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": "e9991434596f5373dfd75857b445eb92a9253c56",
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"lessThan": "143668c424772979a45118dc9cc9c2c13a35f41d",
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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": "e9991434596f5373dfd75857b445eb92a9253c56",
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"lessThan": "9bec7beaed074bcae4181fde9ff9dfbe4e7b0957",
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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": "e9991434596f5373dfd75857b445eb92a9253c56",
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"lessThan": "e5481db31f4654e9a1254d5d467d9b1ff2f8b1cb",
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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": "e9991434596f5373dfd75857b445eb92a9253c56",
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"lessThan": "6809da6e9c08ccc9a09cb0a48c61471679274aaa",
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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/perf/riscv_pmu_legacy.c",
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"drivers/perf/riscv_pmu_sbi.c",
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"include/linux/perf/riscv_pmu.h"
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],
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"versions": [
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{
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"version": "5.18",
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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": "5.18",
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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": "6.1.191",
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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": "6.6.160",
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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": "6.12.111",
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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": "6.18.53",
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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": "7.2.7",
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"lessThanOrEqual": "7.2.*",
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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": "7.3",
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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": "5.18",
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"versionEndExcluding": "6.1.191"
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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": "5.18",
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"versionEndExcluding": "6.6.160"
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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": "5.18",
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"versionEndExcluding": "6.12.111"
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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": "5.18",
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"versionEndExcluding": "6.18.53"
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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": "5.18",
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"versionEndExcluding": "7.2.7"
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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": "5.18",
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"versionEndExcluding": "7.3"
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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/433249a4de52ecda40ffa9c466cec1312e62826f"
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},
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{
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"url": "https://git.kernel.org/stable/c/5a1b6379eed5b13eac0228b605b0bed988e547e9"
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},
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{
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"url": "https://git.kernel.org/stable/c/143668c424772979a45118dc9cc9c2c13a35f41d"
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},
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{
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"url": "https://git.kernel.org/stable/c/9bec7beaed074bcae4181fde9ff9dfbe4e7b0957"
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},
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{
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"url": "https://git.kernel.org/stable/c/e5481db31f4654e9a1254d5d467d9b1ff2f8b1cb"
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},
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{
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"url": "https://git.kernel.org/stable/c/6809da6e9c08ccc9a09cb0a48c61471679274aaa"
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}
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],
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"title": "perf: RISC-V: store available counter mask as bitmap",
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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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} |