Description
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.
Product status
0be7320a635c2e434e8b67e0e9474a85ceb421c4 (git) before c6a8735d841bcb7649734bb3a787bb174c67c0d8
0be7320a635c2e434e8b67e0e9474a85ceb421c4 (git) before 993f63239c219696aef8887a4e7d3a16bf5a8ece
0be7320a635c2e434e8b67e0e9474a85ceb421c4 (git) before 8fe5c37b0e08a97cf0210bb75970e945aaaeebab
0be7320a635c2e434e8b67e0e9474a85ceb421c4 (git) before 42a20cf51011788f04cf2adbcd7681f02bdb6c27
0be7320a635c2e434e8b67e0e9474a85ceb421c4 (git) before 38c345fd54afd9d6ed8d3fcddf3f6ea23887bf78
0be7320a635c2e434e8b67e0e9474a85ceb421c4 (git) before 852b8ae934b5cbdc62496fa56ce9969aa2edda7f
0be7320a635c2e434e8b67e0e9474a85ceb421c4 (git) before 0dfefc2ea2f29ced2416017d7e5b1253a54c2735
3.7
Any version before 3.7
5.10.239 (semver)
5.15.186 (semver)
6.1.139 (semver)
6.6.91 (semver)
6.12.29 (semver)
6.14.7 (semver)
6.15 (original_commit_for_fix)
References
lists.debian.org/debian-lts-announce/2025/10/msg00007.html
lists.debian.org/debian-lts-announce/2025/08/msg00010.html
git.kernel.org/...c/c6a8735d841bcb7649734bb3a787bb174c67c0d8
git.kernel.org/...c/993f63239c219696aef8887a4e7d3a16bf5a8ece
git.kernel.org/...c/8fe5c37b0e08a97cf0210bb75970e945aaaeebab
git.kernel.org/...c/42a20cf51011788f04cf2adbcd7681f02bdb6c27
git.kernel.org/...c/38c345fd54afd9d6ed8d3fcddf3f6ea23887bf78
git.kernel.org/...c/852b8ae934b5cbdc62496fa56ce9969aa2edda7f
git.kernel.org/...c/0dfefc2ea2f29ced2416017d7e5b1253a54c2735