stable inclusion
from stable-v5.10.133
commit e0e06a922706204df43d50032c05af75d8e75f8e
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I5PTAS
CVE: CVE-2022-29900,CVE-2022-23816,CVE-2022-29901

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=e0e06a922706204df43d50032c05af75d8e75f8e

--------------------------------

commit d77cfe59 upstream.

Use the return thunk in eBPF generated code, if needed.
Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: NBorislav Petkov <bp@suse.de>
Reviewed-by: NJosh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: NBorislav Petkov <bp@suse.de>
Signed-off-by: NThadeu Lima de Souza Cascardo <cascardo@canonical.com>
[bwh: Backported to 5.10: add the necessary cnt variable to emit_return()]
Signed-off-by: NBen Hutchings <ben@decadent.org.uk>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NLin Yujun <linyujun809@huawei.com>
Reviewed-by: NZhang Jianhua <chris.zjh@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>