Tags: patch
When AuFin is called with errno = 0, error_at_line(3) does not exit. The
attached patch sets errno to EINVAL following the pattern in most
other similar error checks in aufs-tools.
With this change "auplink / flush" outputs the following error
message and exists without segfaulting:
auplink:plink.c:342: no aufs mount point: Invalid argument
This bug causes docker core files to appear in docker container's root
directory.
Henrik
diff -uNr aufs-tools-3.2+20130722.orig/plink.c aufs-tools-3.2+20130722/plink.c
--- aufs-tools-3.2+20130722.orig/plink.c 2013-08-11 16:48:48.000000000 +0300
+++ aufs-tools-3.2+20130722/plink.c 2015-08-13 18:18:39.836110526 +0300
@@ -337,8 +337,10 @@
if (flags & AuPlinkFlag_OPEN) {
p = hasmntopt(&ent, "si");
- if (!p)
+ if (!p) {
+ errno = EINVAL;
AuFin("no aufs mount point");
+ }
strncpy(si, p, sizeof(si));
p = strchr(si, ',');
if (p)
