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perf/x86/intel: Fix crash in icl_update_topdown_event()

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel: Fix crash in icl_update_topdown_event() The perf_fuzzer found a hard-lockup crash on a RaptorLake machine: Oops: general protection fault, maybe for address 0xffff89aeceab400: 0000 CPU: 23 UID: 0 PID: 0 Comm: swapper/23 Tainted: [W]=WARN Hardware name: Dell Inc. Precision 9660/0VJ762 RIP: 0010:native_read_pmc+0x7/0x40 Code: cc e8 8d a9 01 00 48 89 03 5b cd cc cc cc cc 0f 1f ... RSP: 000:fffb03100273de8 EFLAGS: 00010046 .... Call Trace: icl_update_topdown_event+0x165/0x190 ? ktime_get+0x38/0xd0 intel_pmu_read_event+0xf9/0x210 __perf_event_read+0xf9/0x210 CPUs 16-23 are E-core CPUs that don't support the perf metrics feature. The icl_update_topdown_event() should not be invoked on these CPUs. It's a regression of commit: f9bdf1f95339 ("perf/x86/intel: Avoid disable PMU if !cpuc->enabled in sample read") The bug introduced by that commit is that the is_topdown_event() function is mistakenly used to replace the is_topdown_count() call to check if the topdown functions for the perf metrics feature should be invoked. Fix it.

Announced Source revision 1
Original source ↗

CVE-2025-38322

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2025-38322

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
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Prerequisites
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Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
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        "version": "781b2db0eb7731fbde510c268b7ccc62959c3feb",
        "lessThan": "702ea6028032d6c1fe96c2d4762a3575e3654819",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "e7f6922c8a5b41522a8329ea6bbf815993b2dd28",
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      },
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        "lessThan": "e97c45c770f5e56c784a46c2a96ab968d26b97d9",
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        "versionType": "git"
      },
      {
        "status": "affected",
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        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "d8370aa704bd7e384918c8f466856374725c0585",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "6.1.134",
        "lessThan": "6.1.149",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "6.6.87",
        "lessThan": "6.6.101",
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      },
      {
        "status": "affected",
        "version": "6.12.23",
        "lessThan": "6.12.49",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "6.13.11",
        "lessThan": "6.14",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "6.14.2",
        "lessThan": "6.15",
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      }
    ],
    "programFiles": [
      "arch/x86/events/intel/core.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
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        "version": "6.15"
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        "status": "unaffected",
        "version": "0",
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        "versionType": "semver"
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        "status": "unaffected",
        "version": "6.1.149",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.101",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.49",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.15.4",
        "versionType": "semver",
        "lessThanOrEqual": "6.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.16",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "arch/x86/events/intel/core.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2025-38322

Source reference: /cveMetadata/cveId

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Event
#27032 · Revision 1
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