Description: bpf, mips: Validate conditional branch offsets
References:
 https://lore.kernel.org/bpf/20210915160437.4080-1-piotras@gmail.com/
 https://www.openwall.com/lists/oss-security/2021/09/15/5
 https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/commit/?id=37cb28ec7d3a36a5bace7063a3dba633ab110f8b
Notes:
 bwh> Introduced in 3.16 by commit c6610de353da "MIPS: net: Add BPF JIT"
Bugs:
upstream: released (5.15-rc4) [37cb28ec7d3a36a5bace7063a3dba633ab110f8b]
5.10-upstream-stable: released (5.10.71) [c61736a994fe68b0e5498e4e84e1c9108dc41075]
4.19-upstream-stable: released (4.19.211) [79f3a086dfc34887f9bbb0801768608b9470e942]
4.9-upstream-stable: needed
sid: released (5.14.6-1) [bugfix/mipsel/bpf-mips-Validate-conditional-branch-offsets.patch]
5.10-bullseye-security: released (5.10.70-1) [bugfix/mipsel/bpf-mips-Validate-conditional-branch-offsets.patch]
4.19-buster-security: released (4.19.232-1)
4.9-stretch-security: ignored "mips not supported in LTS"