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NVD / CVE Program· CNA Linux

CVE-2025-38322: perf/x86/intel: Fix crash in icl_update_topdown_event()

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.19% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 6.1.149, 6.12.49, 6.14.

Low priority for now. Upgrade to Linux Linux 6.1.149, 6.12.49, 6.14 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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: <TASK> 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.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Jul 10, 2025
Updated
Nov 10, 2026
EPSS
0.1% · 9th percentile
CWE
—

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.1%

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Noroxi analysis

What does it mean in your environment?

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel
debiandebian linux

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • debian debian linux11.0
  • linux linux kernel6.6.87 and later · before 6.6.101
  • linux linux kernel6.12.23 and later · before 6.12.49
  • linux linux kernel6.1.134 and later · before 6.1.149
  • linux linux kernel6.14.2 and later · before 6.15.4
  • linux linux kernel6.13.11 and later · before 6.14
  • linux linux kernel6.16

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 06cd7bfbb86e9db3e9013ea6636ad2c6f0a1664d, d8370aa704bd7e384918c8f466856374725c0585, 6.15affected
    • 781b2db0eb7731fbde510c268b7ccc62959c3feb and later · before 702ea6028032d6c1fe96c2d4762a3575e3654819affected · git
    • e7f6922c8a5b41522a8329ea6bbf815993b2dd28 and later · before 79e2dd573116d3338507c311460da9669095c94daffected · git
    • 3a8bec6583e5239de3bd597ab382dc6c2b0c29a1 and later · before e97c45c770f5e56c784a46c2a96ab968d26b97d9affected · git
    • f9bdf1f953392c9edd69a7f884f78c0390127029 and later · before a85cc69acdcb05f8cd226b8ea0778b8e2e887e6faffected · git
    • f9bdf1f953392c9edd69a7f884f78c0390127029 and later · before b0823d5fbacb1c551d793cbfe7af24e0d1fa45edaffected · git
    • 6.1.134 and later · before 6.1.149affected · semver
    • 6.6.87 and later · before 6.6.101affected · semver
    • 6.12.23 and later · before 6.12.49affected · semver
    • 6.13.11 and later · before 6.14affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.153-16.1.153-1
Debian:13linuxbefore 6.12.57-16.12.57-1
Debian:14linuxbefore 6.16.3-16.16.3-1
openSUSE:Leap 15.6dtb-aarch64before 6.4.0-150600.23.87.16.4.0-150600.23.87.1
openSUSE:Leap 15.6kernel-64kbbefore 6.4.0-150600.23.87.16.4.0-150600.23.87.1
openSUSE:Leap 15.6kernel-debugbefore 6.4.0-150600.23.87.16.4.0-150600.23.87.1
openSUSE:Leap 15.6kernel-defaultbefore 6.4.0-150600.23.87.16.4.0-150600.23.87.1
openSUSE:Leap 15.6kernel-default-basebefore 6.4.0-150600.23.87.1.150600.12.40.16.4.0-150600.23.87.1.150600.12.40.1
openSUSE:Leap 15.6kernel-docsbefore 6.4.0-150600.23.87.16.4.0-150600.23.87.1
openSUSE:Leap 15.6kernel-kvmsmallbefore 6.4.0-150600.23.87.16.4.0-150600.23.87.1
openSUSE:Leap 15.6kernel-obs-buildbefore 6.4.0-150600.23.87.16.4.0-150600.23.87.1
openSUSE:Leap 15.6kernel-obs-qabefore 6.4.0-150600.23.87.16.4.0-150600.23.87.1
openSUSE:Leap 15.6kernel-sourcebefore 6.4.0-150600.23.87.16.4.0-150600.23.87.1
openSUSE:Leap 15.6kernel-symsbefore 6.4.0-150600.23.87.16.4.0-150600.23.87.1
openSUSE:Leap 15.6kernel-zfcpdumpbefore 6.4.0-150600.23.87.16.4.0-150600.23.87.1
SUSE:Linux Enterprise Live Patching 15 SP6kernel-defaultbefore 6.4.0-150600.23.87.16.4.0-150600.23.87.1
SUSE:Linux Enterprise Live Patching 15 SP6kernel-livepatch-SLE15-SP6_Update_20before 1-150600.13.3.11-150600.13.3.1
SUSE:Linux Enterprise Live Patching 15 SP7kernel-livepatch-SLE15-SP7_Update_9before 1-150700.15.3.11-150700.15.3.1
SUSE:Linux Enterprise Live Patching 15 SP7kernel-livepatch-SLE15-SP7-RT_Update_9before 1-150700.1.3.21-150700.1.3.2
SUSE:Linux Enterprise Module for Basesystem 15 SP7kernel-64kbbefore 6.4.0-150700.53.31.16.4.0-150700.53.31.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7kernel-defaultbefore 6.4.0-150700.53.31.16.4.0-150700.53.31.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7kernel-default-basebefore 6.4.0-150700.53.31.1.150700.17.21.16.4.0-150700.53.31.1.150700.17.21.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7kernel-sourcebefore 6.4.0-150700.53.31.16.4.0-150700.53.31.1
SUSE:Linux Enterprise Module for Basesystem 15 SP7kernel-zfcpdumpbefore 6.4.0-150700.53.31.16.4.0-150700.53.31.1

+16

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe…KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2025-38320Jul 10, 2025 · arm64/ptrace: Fix stack-out-of-bounds read in regs_get_kernel_stack_nth()
    28Monitor
  • ← EarlierCVE-2025-38321Jul 10, 2025 · smb: Log an error when close_all_cached_dirs fails
    22Monitor
  • Later →CVE-2025-38323Jul 10, 2025 · net: atm: add lec_mutex
    31Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux6.1.149Vendor (CNA)
Linux Linux6.12.49Vendor (CNA)
Linux Linux6.14Vendor (CNA)
Linux Linux6.15Vendor (CNA)
Linux Linux6.6.101Vendor (CNA)
Linux Linux702ea6028032d6c1fe96c2d4762a3575e3654819Vendor (CNA)
Linux Linux79e2dd573116d3338507c311460da9669095c94dVendor (CNA)
Linux Linuxa85cc69acdcb05f8cd226b8ea0778b8e2e887e6fVendor (CNA)
Linux Linuxb0823d5fbacb1c551d793cbfe7af24e0d1fa45edVendor (CNA)
Linux Linuxe97c45c770f5e56c784a46c2a96ab968d26b97d9Vendor (CNA)
debian:linux6.1.153-1 · Debian:12Package registry (OSV)
opensuse:dtb-aarch646.4.0-150600.23.87.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-64kb6.4.0-150600.23.87.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-debug6.4.0-150600.23.87.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-default6.4.0-150600.23.87.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-default-base6.4.0-150600.23.87.1.150600.12.40.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-docs6.4.0-150600.23.87.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-kvmsmall6.4.0-150600.23.87.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-obs-build6.4.0-150600.23.87.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-obs-qa6.4.0-150600.23.87.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-source6.4.0-150600.23.87.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-syms6.4.0-150600.23.87.1 · openSUSE:Leap 15.6Package registry (OSV)
opensuse:kernel-zfcpdump6.4.0-150600.23.87.1 · openSUSE:Leap 15.6Package registry (OSV)
suse:kernel-64kb6.4.0-150600.23.87.1 · SUSE:Linux Enterprise Server 15 SP6-LTSSPackage registry (OSV)
suse:kernel-64kb6.4.0-150700.53.31.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP7Package registry (OSV)
suse:kernel-azure6.4.0-150700.20.27.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP7Package registry (OSV)
suse:kernel-default6.4.0-150600.23.87.1 · SUSE:Linux Enterprise Live Patching 15 SP6Package registry (OSV)
suse:kernel-default6.4.0-150700.53.31.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP7Package registry (OSV)
suse:kernel-default-base6.4.0-150600.23.87.1.150600.12.40.1 · SUSE:Linux Enterprise Server 15 SP6-LTSSPackage registry (OSV)
suse:kernel-default-base6.4.0-150700.53.31.1.150700.17.21.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP7Package registry (OSV)

+13

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (8 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records