在 2021/7/31 11:14, Yu Changchun 写道:
From: Ovidiu Panait <ovidiu.panait@windriver.com>
stable inclusion from linux-4.19.193 commit c905bfe767e98a13dd886bf241ba9ee0640a53ff category: bugfix issue: #I42H19 CVE: NA
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Backport the missing selftest part of commit 7da6cd690c43 ("bpf: improve verifier branch analysis") in order to fix the following test_verifier failures:
... Unexpected success to load! 0: (b7) r0 = 0 1: (75) if r0 s>= 0x0 goto pc+1 3: (95) exit processed 3 insns (limit 131072), stack depth 0 Unexpected success to load! 0: (b7) r0 = 0 1: (75) if r0 s>= 0x0 goto pc+1 3: (95) exit processed 3 insns (limit 131072), stack depth 0 ...
The changesets apply with a minor context difference.
Fixes: 7da6cd690c43 ("bpf: improve verifier branch analysis") Signed-off-by: Ovidiu Panait <ovidiu.panait@windriver.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Yu Changchun <yuchangchun1@huawei.com> ---
Looks good to me