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Fix (static) buffer overflow bug. The dest buffer is of size MAXPATHLEN,

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so dest[MAXPATHLEN] falls outside the buffer.  This bug corrupted
arenas[0] defined in libc's malloc.c on PowerPC when kldxref is shared,
which triggered a delayed SIGSERV.
This commit is contained in:
Marcel Moolenaar 2006-08-04 21:28:42 +00:00
parent 43bc7a9c62
commit 77a6f8ac6f
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=160982
1 changed files with 1 additions and 1 deletions
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2
usr.sbin/kldxref/kldxref.c
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@ -260,7 +260,7 @@ maketempfile(char *dest, const char *root)
int fd;
strncpy(dest, root, MAXPATHLEN - 1);
dest[MAXPATHLEN] = '\0';
dest[MAXPATHLEN-1] = '\0';
if ((p = strrchr(dest, '/')) != 0)
p++;