CVE-2025-37948 — arm64: bpf: Add BHB mitigation to the epilogue for cBPF programs

Description (CNA)

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 (CNA)

Vendor / product	Versions
Linux / Linux	affected 0be7320a635c2e434e8b67e0e9474a85ceb421c4 before c6a8735d841bcb7649734bb3a787bb174c67c0d8; affected 0be7320a635c2e434e8b67e0e9474a85ceb421c4 before 993f63239c219696aef8887a4e7d3a16bf5a8ece; affected 0be7320a635c2e434e8b67e0e9474a85ceb421c4 before 8fe5c37b0e08a97cf0210bb75970e945aaaeebab; affected 0be7320a635c2e434e8b67e0e9474a85ceb421c4 before 42a20cf51011788f04cf2adbcd7681f02bdb6c27; affected 0be7320a635c2e434e8b67e0e9474a85ceb421c4 before 38c345fd54afd9d6ed8d3fcddf3f6ea23887bf78; affected 0be7320a635c2e434e8b67e0e9474a85ceb421c4 before 852b8ae934b5cbdc62496fa56ce9969aa2edda7f; affected 0be7320a635c2e434e8b67e0e9474a85ceb421c4 before 0dfefc2ea2f29ced2416017d7e5b1253a54c2735
Linux / Linux	affected 3.7; unaffected 0 before 3.7; unaffected 5.10.239 through 5.10.; unaffected 5.15.186 through 5.15.; unaffected 6.1.139 through 6.1.; unaffected 6.6.91 through 6.6.; unaffected 6.12.29 through 6.12.; unaffected 6.14.7 through 6.14.; unaffected 6.15 through *

Vendor / product

Versions

Linux / Linux

affected 0be7320a635c2e434e8b67e0e9474a85ceb421c4 before c6a8735d841bcb7649734bb3a787bb174c67c0d8; affected 0be7320a635c2e434e8b67e0e9474a85ceb421c4 before 993f63239c219696aef8887a4e7d3a16bf5a8ece; affected 0be7320a635c2e434e8b67e0e9474a85ceb421c4 before 8fe5c37b0e08a97cf0210bb75970e945aaaeebab; affected 0be7320a635c2e434e8b67e0e9474a85ceb421c4 before 42a20cf51011788f04cf2adbcd7681f02bdb6c27; affected 0be7320a635c2e434e8b67e0e9474a85ceb421c4 before 38c345fd54afd9d6ed8d3fcddf3f6ea23887bf78; affected 0be7320a635c2e434e8b67e0e9474a85ceb421c4 before 852b8ae934b5cbdc62496fa56ce9969aa2edda7f; affected 0be7320a635c2e434e8b67e0e9474a85ceb421c4 before 0dfefc2ea2f29ced2416017d7e5b1253a54c2735

Linux / Linux

affected 3.7; unaffected 0 before 3.7; unaffected 5.10.239 through 5.10.*; unaffected 5.15.186 through 5.15.*; unaffected 6.1.139 through 6.1.*; unaffected 6.6.91 through 6.6.*; unaffected 6.12.29 through 6.12.*; unaffected 6.14.7 through 6.14.*; unaffected 6.15 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CVE

No English description supplied.