LoongArch: Enable exception fixup for specific ADE subcode
Published Mar 18, 2026
5.5
MEDIUMCVSS 3.1
EPSS 0.12%
Description
This patch allows the LoongArch BPF JIT to handle recoverable memory access errors generated by BPF_PROBE_MEM* instructions.
When a BPF program performs memory access operations, the instructions it executes may trigger ADEM exceptions. The kernel’s built-in BPF exception table mechanism (EX_TYPE_BPF) will generate corresponding exception fixup entries in the JIT compilation phase; however, the architecture-specific trap handling function needs to proactively call the common fixup routine to achieve exception recovery.
do_ade(): fix EX_TYPE_BPF memory access exceptions for BPF programs, ensure safe execution.
Relevant test cases: illegal address access tests in module_attach and subprogs_extable of selftests/bpf.
Affected products
-
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version
-
- Version 6.2StatusaffectedConstraints-
- Version 0StatusunaffectedConstraints<6.2
- Version 6.12.70StatusunaffectedConstraints<=6.12.*
- Version 6.18.10StatusunaffectedConstraints<=6.18.*
- Version 6.19StatusunaffectedConstraints<=*
- Version 6.6.124StatusunaffectedConstraints<=6.6.*
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
- ≥ 6.2 · < 6.6.124
- ≥ 6.7 · < 6.12.70
- ≥ 6.13 · < 6.18.10
- 6.19
- 6.19
- 6.19
No data.
Red Hat Enterprise Linux 10
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise Linux 9
kernel
Not affected
Red Hat Enterprise Linux 9
kernel-rt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
No CVSS v2.0 score for this CVE.
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
Mar–Oct 2026- EPSS v4
- EPSS v5
Percentile over time
- EPSS v4
- EPSS v5
Table of values (3 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.12% (0.00121) | 1.67th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.12% (0.00121) | 2.19th | v5 (v2026.06.15) |
| Mar 19, 2026 | 0.02% (0.00018) | 4.40th | v4 (v2025.03.14) |
No CWE recorded.
References (9)
- https://access.redhat.com/security/cve/CVE-2025-71270 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2448681 Issue Tracking
- https://git.kernel.org/stable/c/73ede654d9daa2ee41bdd17bc62946fc5a0258cb Patch
- https://git.kernel.org/stable/c/9bdc1ab5e4ce6f066119018d8f69631a46f9c5a0 Patch
- https://git.kernel.org/stable/c/c2ed4f71e9288f21d5c53ff790270758e60fa5f9 Patch
- https://git.kernel.org/stable/c/c49a28068363f3dca439aa5fe4d3b1f8159809fe Patch
- https://lore.kernel.org/linux-cve-announce/2026031816-CVE-2025-71270-19ac@gregkh/T
- https://nvd.nist.gov/vuln/detail/CVE-2025-71270
- https://www.cve.org/CVERecord?id=CVE-2025-71270
Change history (0)
No recorded changes yet.