Author: ngie
Date: Fri May 13 08:39:33 2016
New Revision: 299622
URL: https://svnweb.freebsd.org/changeset/base/299622
Log:
MFC r298334:
r298334 (by cem):
drm2(4): Fix double-free in low-memory error path
Reallocf frees 'block'; don't attempt to free it again.
CID: 1091165
Modified:
stable/10/sys/dev/drm2/drm_edid.c
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/sys/dev/drm2/drm_edid.c
==============================================================================
--- stable/10/sys/dev/drm2/drm_edid.c Fri May 13 08:36:33 2016
(r299621)
+++ stable/10/sys/dev/drm2/drm_edid.c Fri May 13 08:39:33 2016
(r299622)
@@ -353,8 +353,10 @@ drm_do_get_edid(struct drm_connector *co
new = reallocf(block, (block[0x7e] + 1) * EDID_LENGTH, DRM_MEM_KMS,
M_NOWAIT);
- if (!new)
+ if (!new) {
+ block = NULL;
goto out;
+ }
block = new;
for (j = 1; j <= block[0x7e]; j++) {
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