CVE-2025-71129LoongArch: BPF: Sign extend kfunc call arguments
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No exploitation reported and no EPSS estimate yet.
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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).
- CVSS
- 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Analyzed
- Record last updated
- May 11, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 5dc615520c4dfb358245680f1904bad61116648e before fd43edf357a3a1f5ed1c4bf450b60001c9091c39; 5dc615520c4dfb358245680f1904bad61116648e builds before 0d666db731e95890e0eda7ea61bc925fd2be90c6; from 5dc615520c4dfb358245680f1904bad61116648e before 321993a874f571a94b5a596f1132f798c663b56e; 5dc615520c4dfb358245680f1904bad61116648e builds before 3f5a238f24d7b75f9efe324d3539ad388f58536e | CNA record |
linux linux_kernel linux:linux_kernel | from 6.1.1 before 6.6.120; from 6.7 before 6.12.64; from 6.13 before 6.18.4; 6.1; 6.19; 6.19; 6.19; 6.19; and 4 more ranges | NVD |
References
- https://git.kernel.org/stable/c/fd43edf357a3a1f5ed1c4bf450b60001c9091c39patch
- https://git.kernel.org/stable/c/0d666db731e95890e0eda7ea61bc925fd2be90c6patch
- https://git.kernel.org/stable/c/321993a874f571a94b5a596f1132f798c663b56epatch
- https://git.kernel.org/stable/c/3f5a238f24d7b75f9efe324d3539ad388f58536epatch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.