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lsm_audit: avoid overloading the "key" audit field 

The "key" field is used to associate records with the rule that
triggered them, os it's not a good idea to overload it with an
additional IPC key semantic. Moreover, as the classic "key" field is a
text field, while the IPC key is numeric, AVC records containing the IPC
key info actually confuse audit userspace, which tries to interpret the
number as a hex-encoded string, thus showing garbage for example in the
ausearch "interpret" output mode.

Hence, change it to "ipc_key" to fix both issues and also make the
meaning of this field more clear.

Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Reviewed-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
This commit is contained in:
Ondrej Mosnacek 2021-09-14 15:15:16 +02:00 committed by Paul Moore
parent d680c6b49c
commit 8e71168e2c
1 changed files with 1 additions and 1 deletions
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2
security/lsm_audit.c
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@ -224,7 +224,7 @@ static void dump_common_audit_data(struct audit_buffer *ab,
case LSM_AUDIT_DATA_NONE:
return;
case LSM_AUDIT_DATA_IPC:
audit_log_format(ab, " key=%d ", a->u.ipc_id);
audit_log_format(ab, " ipc_key=%d ", a->u.ipc_id);
break;
case LSM_AUDIT_DATA_CAP:
audit_log_format(ab, " capability=%d ", a->u.cap);