kernel: failure to revert address limit override in OOPS error path
Published Dec 30, 2010
6.2
MEDIUMCVSS 2.0
EPSS 2.66%
Description
The do_exit function in kernel/exit.c in the Linux kernel before 2.6.36.2 does not properly handle a KERNEL_DS get_fs value, which allows local users to bypass intended access_ok restrictions, overwrite arbitrary kernel memory locations, and gain privileges by leveraging a (1) BUG, (2) NULL pointer dereference, or (3) page fault, as demonstrated by vectors involving the clear_child_tid feature and the splice system call.
Affected products
No data.
Configuration 1
- < 2.6.36.2
Configuration 2
- 13
Configuration 3
- 11.2
- 11.3
- 10
- 11
- 11
- 9
- 10
- 11
- 10
No data.
Red Hat Enterprise Linux 4
kernel
Affected
Red Hat Enterprise Linux 5
kernel
Affected
Red Hat Enterprise Linux 6
kernel
Affected
Red Hat Enterprise MRG 1
kernel-rt
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | kernel | Affected | n/a |
| Red Hat Enterprise Linux 5 | kernel | Affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Affected | n/a |
| Red Hat Enterprise MRG 1 | kernel-rt | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
The Linux kernel as shipped with Red Hat Enterprise Linux 4, 5, 6, and Red Hat Enterprise MRG enabled the panic_on_oops sysctl tunable by default, and therefore are not affected by this issue. However, as a preventive measure (for example, for administrators who have turned panic_on_oops off), this issue was fixed in kernel updates in Red Hat Enterprise Linux 4, 5, 6, and Red Hat Enterprise MRG. Because the fix was considered as a preventative measure, this CVE is not listed in the related advisories that provided the fix: RHSA-2011:0162, RHSA-2011:0263, RHSA-2011:0017, RHSA-2011:0498, RHSA-2011:0542, RHSA-2011:0330. The fix is documented in each of these advisories as a regular bug fix, for example as BZ#659568 in RHSA-2011:0162.
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:H/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 2, 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 (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 2.66% (0.02655) | 85.15th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.66% (0.02655) | 83.64th | v5 (v2026.06.15) |
| Dec 10, 2025 | 5.86% (0.05856) | 90.21th | v4 (v2025.03.14) |
| Mar 30, 2025 | 2.76% (0.02762) | 84.74th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.40% (0.01395) | 79.08th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.04% (0.00044) | 11.89th | v3 (v2023.03.01) |
| Jul 2, 2024 | 0.04% (0.00044) | 10.25th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00044) | 8.24th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.55% (0.01547) | 74.98th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.55% (0.01547) | 74.13th | v2 (v2022.01.01) |
| Apr 1, 2022 | 6.67% (0.06674) | 90.73th | v2 (v2022.01.01) |
| Feb 4, 2022 | 6.67% (0.06674) | 78.72th | v2 (v2022.01.01) |
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Change history (0)
No recorded changes yet.