Riskcovery

CVE-2025-71129

LoongArch: BPF: Sign extend kfunc call arguments

State
Published
Severity
Not scored
Published
Jan 14, 2026
Updated
May 11, 2026
Reserved
Jan 13, 2026

Read the record on cve.org

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).

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 5dc615520c4dfb358245680f1904bad61116648e to before fd43edf357a3a1f5ed1c4bf450b60001c9091c39Affected
  • 5dc615520c4dfb358245680f1904bad61116648e to before 0d666db731e95890e0eda7ea61bc925fd2be90c6Affected
  • 5dc615520c4dfb358245680f1904bad61116648e to before 321993a874f571a94b5a596f1132f798c663b56eAffected
  • 5dc615520c4dfb358245680f1904bad61116648e to before 3f5a238f24d7b75f9efe324d3539ad388f58536eAffected
LinuxLinux
  • 6.1Affected
  • before 6.1Not affected
  • 6.6.120 through 6.6.*Not affected
  • 6.12.64 through 6.12.*Not affected
  • 6.18.4 through 6.18.*Not affected
  • 6.19 and laterNot affected

References

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