CVE-2025-37948

Summary

In the Linux kernel, the following vulnerability has been resolved:

arm64: bpf: Add BHB mitigation to the epilogue for cBPF programs

A malicious BPF program may manipulate the branch history to influence what the hardware speculates will happen next.

On exit from a BPF program, emit the BHB mititgation sequence.

This is only applied for 'classic' cBPF programs that are loaded by seccomp.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux0be7320a635c2e434e8b67e0e9474a85ceb421c4 < c6a8735d841bcb7649734bb3a787bb174c67c0d8affected
LinuxLinux0be7320a635c2e434e8b67e0e9474a85ceb421c4 < 993f63239c219696aef8887a4e7d3a16bf5a8eceaffected
LinuxLinux0be7320a635c2e434e8b67e0e9474a85ceb421c4 < 8fe5c37b0e08a97cf0210bb75970e945aaaeebabaffected
LinuxLinux0be7320a635c2e434e8b67e0e9474a85ceb421c4 < 42a20cf51011788f04cf2adbcd7681f02bdb6c27affected
LinuxLinux0be7320a635c2e434e8b67e0e9474a85ceb421c4 < 38c345fd54afd9d6ed8d3fcddf3f6ea23887bf78affected
LinuxLinux0be7320a635c2e434e8b67e0e9474a85ceb421c4 < 852b8ae934b5cbdc62496fa56ce9969aa2edda7faffected
LinuxLinux0be7320a635c2e434e8b67e0e9474a85ceb421c4 < 0dfefc2ea2f29ced2416017d7e5b1253a54c2735affected
LinuxLinux3.7affected
LinuxLinux0 < 3.7unaffected
LinuxLinux5.10.239 <= 5.10.*unaffected
LinuxLinux5.15.186 <= 5.15.*unaffected
LinuxLinux6.1.139 <= 6.1.*unaffected
LinuxLinux6.6.91 <= 6.6.*unaffected
LinuxLinux6.12.29 <= 6.12.*unaffected
LinuxLinux6.14.7 <= 6.14.*unaffected
LinuxLinux6.15 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

References