After commit 829199197a430dade2519d54f5545c4a094393b8 audit emiters will block forever if userspace daemon cannot handle backlog. After the timeout waiting loop turns into busy loop and runs until daemon dies or returns back to work. This is minimal patch for that bug.
Signed-off-by: Konstantin Khlebnikov <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Luiz Capitulino <[email protected]> Cc: Richard Guy Briggs <[email protected]> Cc: Eric Paris <[email protected]> Cc: Chuck Anderson <[email protected]> Cc: Dan Duval <[email protected]> Cc: Dave Kleikamp <[email protected]> --- kernel/audit.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/kernel/audit.c b/kernel/audit.c index 91e53d0..7b0e23a 100644 --- a/kernel/audit.c +++ b/kernel/audit.c @@ -1117,9 +1117,10 @@ struct audit_buffer *audit_log_start(struct audit_context *ctx, gfp_t gfp_mask, sleep_time = timeout_start + audit_backlog_wait_time - jiffies; - if ((long)sleep_time > 0) + if ((long)sleep_time > 0) { wait_for_auditd(sleep_time); - continue; + continue; + } } if (audit_rate_check() && printk_ratelimit()) printk(KERN_WARNING -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
