APPLIED: [SRU][Xenial][PATCH 0/1] Fix for bpf selftest regression

[Khaled Elmously]

On 2020-05-22 13:25:32 , Kleber Souza wrote:
> BugLink: https://bugs.launchpad.net/bugs/1879752
> 
> [Impact]
> Testcase test_bpf of ubuntu_kernel_selftests.net regressed on xenial/linux
> 4.4.0-180.210.
> 
> What the test_bpf testcase does is only loading the test_bpf module, which
> reports the following error:
> 
> May 20 16:57:21 autopkgtest kernel: [ 88.143826] test_bpf: #250 BPF_MAXINSNS: 
> ld_abs+vlan_push/pop
> jited:1 ret -12 != 3055 FAIL (1 times)
> 
> This is cased by upstream commit 636c2628086e "net: skbuff: Remove errornous
> length validation in skb_vlan_pop()" which we applied from stable upstream
> v4.4.223.
> 
> [Fix]
> The fix is upstream commit 0d906b1e8d40 "bpf, test: fix ld_abs + vlan push/pop
> stress test" from v4.9 which can cherry-picked to xenial.
> 
> [Test case]
> Load the test_bpf module, it should return no errors.
> 
> [Regression potential]
> Low. The fix changes only a bpf test module and was tested to fix the reported
> issue.
> 
> Daniel Borkmann (1):
>   bpf, test: fix ld_abs + vlan push/pop stress test
> 
>  lib/test_bpf.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> -- 
> 2.20.1
> 
> 
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