CVE-2025-71129 Details
Description
In the Linux kernel, the following vulnerability has been resolved: LoongArch: BPF: Sign extend kfunc call arguments The kfunc calls are native calls so they should follow LoongArch calling conventions. Sign extend its arguments properly to avoid kernel panic. This is done by adding a new emit_abi_ext() helper. The emit_abi_ext() helper performs extension in place meaning a value already store in the target register (Note: this is different from the existing sign_extend() helper and thus we can't reuse it).
A vulnerability exists in the Linux kernel's handling of BPF kfunc calls on LoongArch architecture. The issue arises because these native calls do not properly follow the LoongArch calling conventions, leading to potential kernel panics. The vulnerability affects several versions of the Linux kernel.
Users can upgrade to the latest version of the Linux kernel where this vulnerability has been addressed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/0d666db731e95890e0eda7ea61bc925fd2be90c6 | kernel.org | Patch |
| https://git.kernel.org/stable/c/321993a874f571a94b5a596f1132f798c663b56e | kernel.org | Patch |
| https://git.kernel.org/stable/c/3f5a238f24d7b75f9efe324d3539ad388f58536e | kernel.org | Patch |
| https://git.kernel.org/stable/c/fd43edf357a3a1f5ed1c4bf450b60001c9091c39 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.1.1, < 6.6.120 >= 6.7, < 6.12.64 >= 6.13, < 6.18.4 6.1 - 6.19 rc1 6.19 rc2 6.19 rc3 6.19 rc4 6.19 rc5 6.19 rc6 6.19 rc7 6.19 rc8 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Mar 25, 2026 | Initial Analysis | [email protected] |
| Jan 14, 2026 | New CVE Received | kernel.org |