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| author | Jeff Johnston <jjohnstn@redhat.com> | 2010-01-11 23:24:47 +0000 |
|---|---|---|
| committer | Jeff Johnston <jjohnstn@redhat.com> | 2010-01-11 23:24:47 +0000 |
| commit | eeda30d7d5688c707d0c09d68ab342b285361408 (patch) | |
| tree | bc2df4ba11a01d7b8280ecac392d1f06ae8cab7f | |
| parent | d8a439359a582d29a6ee7b9c0d2309f46544e777 (diff) | |
| download | newlib-eeda30d7d5688c707d0c09d68ab342b285361408.zip newlib-eeda30d7d5688c707d0c09d68ab342b285361408.tar.gz newlib-eeda30d7d5688c707d0c09d68ab342b285361408.tar.bz2 | |
2010-01-11 Sebastian Huber <sebastian.huber@embedded-brains.de>
* libc/posix/telldir.c (_cleanupdir): Fixed usage of freed memory.
| -rw-r--r-- | newlib/ChangeLog | 4 | ||||
| -rw-r--r-- | newlib/libc/posix/telldir.c | 22 |
2 files changed, 15 insertions, 11 deletions
diff --git a/newlib/ChangeLog b/newlib/ChangeLog index 5136fa4..1afbaf6 100644 --- a/newlib/ChangeLog +++ b/newlib/ChangeLog @@ -1,3 +1,7 @@ +2010-01-11 Sebastian Huber <sebastian.huber@embedded-brains.de> + + * libc/posix/telldir.c (_cleanupdir): Fixed usage of freed memory. + 2010-01-11 Yaakov Selkowitz <yselkowitz@users.sourceforge.net> * libc/include/math.h (log2, log2f): Disable macro versions for C++, diff --git a/newlib/libc/posix/telldir.c b/newlib/libc/posix/telldir.c index ad654b1..5178467 100644 --- a/newlib/libc/posix/telldir.c +++ b/newlib/libc/posix/telldir.c @@ -169,26 +169,26 @@ _DEFUN(_cleanupdir, (dirp), __lock_acquire(dd_hash_lock); #endif for (i = 0; i < NDIRHASH; ++i) { + struct ddloc head; register struct ddloc *lp; register struct ddloc *prevlp; + lp = dd_hash[i]; - while (lp != NULL && lp->loc_dirp == dirp) { - dd_hash[i] = lp->loc_next; - prevlp = lp; - free((caddr_t)lp); - lp = prevlp->loc_next; - } - prevlp = lp; + head.loc_next = lp; + prevlp = &head; while (lp != NULL) { - lp = lp->loc_next; - if (lp != NULL && lp->loc_dirp == dirp) { - prevlp->loc_next = lp->loc_next; + struct ddloc *nextlp; + + nextlp = lp->loc_next; + if (lp->loc_dirp == dirp) { + prevlp->loc_next = nextlp; free((caddr_t)lp); - lp = prevlp; } else prevlp = lp; + lp = nextlp; } + dd_hash[i] = head.loc_next; } #ifdef HAVE_DD_LOCK __lock_release(dd_hash_lock); |