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authorCorinna Vinschen <corinna@vinschen.de>2009-11-23 17:02:20 +0000
committerCorinna Vinschen <corinna@vinschen.de>2009-11-23 17:02:20 +0000
commite92d0abecfb11884e85a53f81966c66e5319942d (patch)
treeb60bc08b2ed4b28621ede6b89fb6de2d24145665 /newlib/libc/include/sys
parent27bbefdefd339676bee4238e996df70e89fcdfa1 (diff)
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Use NetBSD fix for CVE-2009-0689 security vulnerability.
* libc/include/sys/reent.h (_Kmax): Define here based on the sizeof size_t, as in latest NetBSD. * libc/reent/reent.c (_reclaim_reent): Use _Kmax rather than constant value 15. * libc/stdlib/mprec.c (_Kmax): Don't define here. Explain why.
Diffstat (limited to 'newlib/libc/include/sys')
-rw-r--r--newlib/libc/include/sys/reent.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/newlib/libc/include/sys/reent.h b/newlib/libc/include/sys/reent.h
index 60eb208a7..ed3d9aa01 100644
--- a/newlib/libc/include/sys/reent.h
+++ b/newlib/libc/include/sys/reent.h
@@ -800,6 +800,11 @@ struct _reent
#endif /* !_REENT_SMALL */
+/* This value is used in stdlib/misc.c. reent/reent.c has to know it
+ as well to make sure the freelist is correctly free'd. Therefore
+ we define it here, rather than in stdlib/misc.c, as before. */
+#define _Kmax (sizeof (size_t) << 3)
+
/*
* All references to struct _reent are via this pointer.
* Internally, newlib routines that need to reference it should use _REENT.