tree 7252b0d4174a46d062a76fea648fdde2fd992f9a
parent a959a9782fa87669feeed095ced5d78181a7c02d
author Al Viro <viro@zeniv.linux.org.uk> 1609875826 -0500
committer Al Viro <viro@zeniv.linux.org.uk> 1610827895 -0500

dump_common_audit_data(): fix racy accesses to ->d_name

We are not guaranteed the locking environment that would prevent
dentry getting renamed right under us.  And it's possible for
old long name to be freed after rename, leading to UAF here.

Cc: stable@kernel.org # v2.6.2+
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>