>From the test case source:
Check if an unlinked executable can run in overlayfs mount.
The regression is introduced from 8db6c34f1dbc ("Introduce v3
namespaced file capabilities"). in security/commoncap.c,
cap_inode_getsecurity() use d_find_alias() cause unhashed dentry
can't be found. The solution could use d_find_any_alias() instead of
d_find_alias().
From kernel 4.14, this case is expected fails, execveat shell
return EINVAL.
I checked upstream and the code still uses d_find_alias(). There's a
patch that is in Eric Biederman's userns-testing branch but not linux-
next:
https://patchwork.kernel.org/patch/10560165/
So ... given that this has always been in bionic and we're only noticing
because some test specifically for this problem failed, I don't see that
it's something urgent to fix. I think we can just add the fix to the
next upload.
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https://bugs.launchpad.net/bugs/1786729
Title:
execveat03 in ubuntu_ltp_syscalls failed on X/B
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