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integrity: include keyring name for unknown key request

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Depending on the IMA policy rule a key may be searched for in multiple
keyrings (e.g. .ima and .platform) and possibly not found.  This patch
improves feedback by including the keyring "description" (name) in the
error message.

Signed-off-by: Bruno Meneguele <bmeneg@redhat.com>
[zohar@linux.ibm.com: updated commit message]
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
This commit is contained in:
Bruno Meneguele 2020-09-04 16:41:00 -03:00 committed by Mimi Zohar
parent e4d7e2df3a
commit 8c2f516c99
1 changed files with 8 additions and 2 deletions
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10
security/integrity/digsig_asymmetric.c
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@ -55,8 +55,14 @@ static struct key *request_asymmetric_key(struct key *keyring, uint32_t keyid)
}
if (IS_ERR(key)) {
pr_err_ratelimited("Request for unknown key '%s' err %ld\n",
name, PTR_ERR(key));
if (keyring)
pr_err_ratelimited("Request for unknown key '%s' in '%s' keyring. err %ld\n",
name, keyring->description,
PTR_ERR(key));
else
pr_err_ratelimited("Request for unknown key '%s' err %ld\n",
name, PTR_ERR(key));
switch (PTR_ERR(key)) {
/* Hide some search errors */
case -EACCES: