DEBIAN-CVE-2025-38586
- Source
- https://security-tracker.debian.org/tracker/CVE-2025-38586
- Import Source
- https://storage.googleapis.com/osv-test-debian-osv/debian-cve-osv/DEBIAN-CVE-2025-38586.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/DEBIAN-CVE-2025-38586
- Upstream
- Published
- 2025-08-19T17:15:36.113Z
- Modified
- 2025-11-27T11:01:14.157523Z
- Severity
-
- 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved: bpf, arm64: Fix fp initialization for exception boundary In the ARM64 BPF JIT when prog->aux->exceptionboundary is set for a BPF program, findusedcalleeregs() is not called because for a program acting as exception boundary, all callee saved registers are saved. findusedcalleeregs() sets
ctx->fp_used = true;when it sees FP being used in any of the instructions. For programs acting as exception boundary, ctx->fpused remains false even if frame pointer is used by the program and therefore, FP is not set-up for such programs in the prologue. This can cause the kernel to crash due to a pagefault. Fix it by setting ctx->fp_used = true for exception boundary programs as fp is always saved in such programs. - References
Affected packages
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:14 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source