kernel: panic with NMI enabled while using perf
Published Jun 8, 2013
1.9
LOWCVSS 2.0
EPSS 0.31%
Description
The perf subsystem in the kernel package 2.6.32-122.el6.x86_64 in Red Hat Enterprise Linux (RHEL) 6 does not properly handle NMIs, which might allow local users to cause a denial of service (excessive log messages) via unspecified vectors.
Affected products
No data.
- 6.0
No data.
Red Hat Enterprise Linux 4
kernel
Not affected
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise MRG 2
realtime-kernel
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | Not affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue was found to be a duplicate of CVE-2011-2521. CVE-2011-2521 issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 4, 5, and Red Hat Enterprise MRG as they did not backport the upstream commit 41bf498 that introduced the issue.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:L/AC:M/Au:N/C:N/I:N/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.31% (0.00313) | 21.94th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.31% (0.00313) | 22.84th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.05% (0.00053) | 13.76th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00042) | 5.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00042) | 5.63th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
No CWE recorded.
References (6)
- https://access.redhat.com/security/cve/CVE-2011-2693 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=688547 x_refsource_CONFIRM
- https://bugzilla.redhat.com/show_bug.cgi?id=721283 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2011-2693
- https://oss.oracle.com/git/?p=redpatch.git%3Ba=commit%3Bh=fadca7bdc43b02f518585d9547019966415cadfd x_refsource_CONFIRM
- https://www.cve.org/CVERecord?id=CVE-2011-2693
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2011-2693 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=688547 | x_refsource_CONFIRM | |
| https://bugzilla.redhat.com/show_bug.cgi?id=721283 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2011-2693 | ||
| https://oss.oracle.com/git/?p=redpatch.git%3Ba=commit%3Bh=fadca7bdc43b02f518585d9547019966415cadfd | x_refsource_CONFIRM | |
| https://www.cve.org/CVERecord?id=CVE-2011-2693 |
Change history (0)
No recorded changes yet.