| Message ID | 1436568792-20862-1-git-send-email-tyhicks@canonical.com |
|---|---|
| State | New |
| Headers | show |
Wily only ?
Applied to Wily. I'll pocket copy from Wily to Vivid
diff --git a/kernel/audit.c b/kernel/audit.c index 1c7f2c6..c6ed3f1 100644 --- a/kernel/audit.c +++ b/kernel/audit.c @@ -625,7 +625,7 @@ static int audit_log_common_recv_msg(struct audit_buffer **ab, u16 msg_type, char *ctx = NULL; u32 len; - if (!audit_enabled) { + if (!audit_enabled && msg_type != AUDIT_USER_AVC) { *ab = NULL; return rc; }
[ Upstream commit 0868a5e150bc4c47e7a003367cd755811eb41e0b ] BugLink: https://launchpad.net/bugs/1473584 When the audit=1 kernel parameter is absent and auditd is not running, AUDIT_USER_AVC messages are being silently discarded. AUDIT_USER_AVC messages should be sent to userspace using printk(), as mentioned in the commit message of 4a4cd633 ("AUDIT: Optimise the audit-disabled case for discarding user messages"). When audit_enabled is 0, audit_receive_msg() discards all user messages except for AUDIT_USER_AVC messages. However, audit_log_common_recv_msg() refuses to allocate an audit_buffer if audit_enabled is 0. The fix is to special case AUDIT_USER_AVC messages in both functions. It looks like commit 50397bd1 ("[AUDIT] clean up audit_receive_msg()") introduced this bug. Cc: <stable@kernel.org> # v2.6.25+ Signed-off-by: Tyler Hicks <tyhicks@canonical.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Eric Paris <eparis@redhat.com> Cc: linux-audit@redhat.com Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Richard Guy Briggs <rgb@redhat.com> Signed-off-by: Eric Paris <eparis@redhat.com> --- kernel/audit.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)