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x86/bpf: Use alternative RET encoding
authorPeter Zijlstra <peterz@infradead.org>
Tue, 14 Jun 2022 21:15:41 +0000 (23:15 +0200)
committerThadeu Lima de Souza Cascardo <cascardo@canonical.com>
Tue, 19 Jul 2022 19:20:03 +0000 (16:20 -0300)
commitaaefe059c51dcd810025953dab6848b6b1001aff
tree7061df290a795dba1669181ef804243be06eaa47tree
parent15969cbd494dc7a376a2faea78c9de2ac27a1b89commit | diff
x86/bpf: Use alternative RET encoding

commit d77cfe594ad50e0bf95d457e02ccd578791b2a15 upstream.

Use the return thunk in eBPF generated code, if needed.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Borislav Petkov <bp@suse.de>
CVE-2022-29900
CVE-2022-29901
Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@canonical.com>
arch/x86/net/bpf_jit_comp.c diff | blob | blame | history
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