Hi Norbert,
I independently tested this patch as part of the v2 series using a
separate, non-destructive page-cache canary reproducer.
The test exercised a failed nonterminal OVS USERSPACE action followed by
forwarding:
userspace(pid=1),2
Before the fix, the root-owned read-only page-cache canary changed. With
v2 applied, the canary remained unchanged. No kernel warning, oops, or
panic was observed.
Tested-by: Jongmin Jang <redacted>
Best regards,
Jongmin Jang