kernel: regset: Prevent null pointer reference on readonly regsets
Published May 17, 2012
7.8
HIGHCVSS 3.1
EPSS 0.35%
Description
The regset (aka register set) feature in the Linux kernel before 3.2.10 does not properly handle the absence of .get and .set methods, which allows local users to cause a denial of service (NULL pointer dereference) or possibly have unspecified other impact via a (1) PTRACE_GETREGSET or (2) PTRACE_SETREGSET ptrace call.
Affected products
No data.
Configuration 1
- < 3.0.24
- ≥ 3.1 · < 3.2.10
Configuration 2
- 4.0
- 2.0
Configuration 3
- 11
- 11
- 11
- 11
- 11
- 11
- 11
- 11
No data.
Red Hat Enterprise Linux 6
kernel-0:2.6.32-220.13.1.el6
Fixed · RHSA-2012:0481
Red Hat Enterprise Linux 6.1 EUS - Server Only
kernel-0:2.6.32-131.29.1.el6
Fixed · RHSA-2012:1042
Red Hat Enterprise Linux 4
kernel
Will not fix
Red Hat Enterprise Linux 5
kernel
Not affected
Red Hat Enterprise MRG 2
realtime-kernel
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | kernel-0:2.6.32-220.13.1.el6 | Fixed | RHSA-2012:0481 |
| Red Hat Enterprise Linux 6.1 EUS - Server Only | kernel-0:2.6.32-131.29.1.el6 | Fixed | RHSA-2012:1042 |
| Red Hat Enterprise Linux 4 | kernel | Will not fix | n/a |
| Red Hat Enterprise Linux 5 | kernel | Not affected | n/a |
| Red Hat Enterprise MRG 2 | realtime-kernel | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the Linux kernel as shipped with Red Hat Enterprise Linux 5 as it did not backport upstream commits 4206d3aa and 5bde4d18.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:C/I:C/A:C
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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.35% (0.00351) | 26.35th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.35% (0.00351) | 26.70th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.08% (0.00079) | 21.05th | 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 | 1.28% (0.01282) | 68.34th | v2 (v2022.01.01) |
| Feb 13, 2023 | 1.28% (0.01282) | 67.79th | v2 (v2022.01.01) |
| Feb 3, 2023 | 1.55% (0.01547) | 74.40th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.28% (0.01282) | 65.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.28% (0.01282) | 41.72th | v2 (v2022.01.01) |
References (15)
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=c8e252586f8d5de906385d8cf6385fee289a825e x_refsource_CONFIRM
- http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2012-05/msg00013.html vendor-advisoryx_refsource_SUSEMailing ListThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2012-0481.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2012-0531.html vendor-advisoryx_refsource_REDHATThird Party Advisory
- http://secunia.com/advisories/48842 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/48898 third-party-advisoryx_refsource_SECUNIABroken Link
- http://secunia.com/advisories/48964 third-party-advisoryx_refsource_SECUNIABroken Link
- http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.10 x_refsource_CONFIRMMailing ListPatchVendor Advisory
- http://www.openwall.com/lists/oss-security/2012/03/05/1 mailing-listx_refsource_MLISTMailing ListPatchThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2012-1097 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=799209 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://github.com/torvalds/linux/commit/c8e252586f8d5de906385d8cf6385fee289a825e x_refsource_CONFIRMPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2012-1097
- https://www.cve.org/CVERecord?id=CVE-2012-1097
Change history (0)
No recorded changes yet.