svn commit: r301236 - head/sys/dev/drm2
Adrian Chadd
adrian at FreeBSD.org
Fri Jun 3 05:01:36 UTC 2016
Author: adrian
Date: Fri Jun 3 05:01:35 2016
New Revision: 301236
URL: https://svnweb.freebsd.org/changeset/base/301236
Log:
[drm] fix up hex_dump_to_buffer to not overflow linebuf.
That check wasn't enough to handle appending a two byte character
following it.
This prevented my T400 (Intel Core 2 Duo P8400) from attaching;
it would panic from a stack overflow detection.
Modified:
head/sys/dev/drm2/drm_os_freebsd.c
Modified: head/sys/dev/drm2/drm_os_freebsd.c
==============================================================================
--- head/sys/dev/drm2/drm_os_freebsd.c Fri Jun 3 03:40:39 2016 (r301235)
+++ head/sys/dev/drm2/drm_os_freebsd.c Fri Jun 3 05:01:35 2016 (r301236)
@@ -422,7 +422,7 @@ hex_dump_to_buffer(const void *buf, size
}
}
- if (j > linebuflen - 1)
+ if (j > linebuflen - 4)
break;
sprintf(linebuf + j, "%02X", c);
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