glibc: enable lock elision[1]; sync patches with Arch[2].
[1] https://sourceware.org/glibc/wiki/LockElisionGuide [2] Misc patches for some CVEs.
This commit is contained in:
parent
2c8e55226e
commit
79497fe5ef
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@ -0,0 +1,41 @@
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diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
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index e6ce4cf..8ff74b4 100644
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--- a/sysdeps/posix/getaddrinfo.c
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+++ b/sysdeps/posix/getaddrinfo.c
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@@ -197,7 +197,22 @@ gaih_inet_serv (const char *servicename, const struct gaih_typeproto *tp,
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&rc, &herrno, NULL, &localcanon)); \
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if (rc != ERANGE || herrno != NETDB_INTERNAL) \
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break; \
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- tmpbuf = extend_alloca (tmpbuf, tmpbuflen, 2 * tmpbuflen); \
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+ if (!malloc_tmpbuf && __libc_use_alloca (alloca_used + 2 * tmpbuflen)) \
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+ tmpbuf = extend_alloca_account (tmpbuf, tmpbuflen, 2 * tmpbuflen, \
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+ alloca_used); \
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+ else \
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+ { \
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+ char *newp = realloc (malloc_tmpbuf ? tmpbuf : NULL, \
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+ 2 * tmpbuflen); \
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+ if (newp == NULL) \
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+ { \
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+ result = -EAI_MEMORY; \
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+ goto free_and_return; \
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+ } \
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+ tmpbuf = newp; \
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+ malloc_tmpbuf = true; \
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+ tmpbuflen = 2 * tmpbuflen; \
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+ } \
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} \
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if (status == NSS_STATUS_SUCCESS && rc == 0) \
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h = &th; \
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@@ -209,7 +224,8 @@ gaih_inet_serv (const char *servicename, const struct gaih_typeproto *tp,
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{ \
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__set_h_errno (herrno); \
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_res.options |= old_res_options & RES_USE_INET6; \
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- return -EAI_SYSTEM; \
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+ result = -EAI_SYSTEM; \
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+ goto free_and_return; \
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} \
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if (herrno == TRY_AGAIN) \
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no_data = EAI_AGAIN; \
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--
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1.8.4.1
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|
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@ -0,0 +1,39 @@
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diff --git a/sysdeps/posix/getaddrinfo.c b/sysdeps/posix/getaddrinfo.c
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index 0f4b885..e6ce4cf 100644
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--- a/sysdeps/posix/getaddrinfo.c
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+++ b/sysdeps/posix/getaddrinfo.c
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@@ -1666,13 +1666,13 @@ rfc3484_sort (const void *p1, const void *p2, void *arg)
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/* Fill in the results in all the records. */
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for (int i = 0; i < src->nresults; ++i)
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- if (src->results[i].index == a1_index)
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+ if (a1_index != -1 && src->results[i].index == a1_index)
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{
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assert (src->results[i].native == -1
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|| src->results[i].native == a1_native);
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src->results[i].native = a1_native;
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}
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- else if (src->results[i].index == a2_index)
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+ else if (a2_index != -1 && src->results[i].index == a2_index)
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{
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assert (src->results[i].native == -1
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|| src->results[i].native == a2_native);
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@@ -2532,7 +2532,14 @@ getaddrinfo (const char *name, const char *service,
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tmp.addr[0] = 0;
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tmp.addr[1] = 0;
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tmp.addr[2] = htonl (0xffff);
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- tmp.addr[3] = sinp->sin_addr.s_addr;
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+ /* Special case for lo interface, the source address
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+ being possibly different than the interface
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+ address. */
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+ if ((ntohl(sinp->sin_addr.s_addr) & 0xff000000)
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+ == 0x7f000000)
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+ tmp.addr[3] = htonl(0x7f000001);
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+ else
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+ tmp.addr[3] = sinp->sin_addr.s_addr;
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}
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else
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{
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--
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1.8.4.1
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|
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@ -0,0 +1,54 @@
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diff --git a/malloc/malloc.c b/malloc/malloc.c
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index dd295f5..7f43ba3 100644
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--- a/malloc/malloc.c
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+++ b/malloc/malloc.c
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@@ -3082,6 +3082,13 @@ __libc_pvalloc(size_t bytes)
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size_t page_mask = GLRO(dl_pagesize) - 1;
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size_t rounded_bytes = (bytes + page_mask) & ~(page_mask);
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+ /* Check for overflow. */
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+ if (bytes > SIZE_MAX - 2*pagesz - MINSIZE)
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+ {
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+ __set_errno (ENOMEM);
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+ return 0;
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+ }
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+
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void *(*hook) (size_t, size_t, const void *) =
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force_reg (__memalign_hook);
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if (__builtin_expect (hook != NULL, 0))
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diff --git a/malloc/malloc.c b/malloc/malloc.c
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index 7f43ba3..3148c5f 100644
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--- a/malloc/malloc.c
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+++ b/malloc/malloc.c
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@@ -3046,6 +3046,13 @@ __libc_valloc(size_t bytes)
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size_t pagesz = GLRO(dl_pagesize);
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+ /* Check for overflow. */
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+ if (bytes > SIZE_MAX - pagesz - MINSIZE)
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+ {
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+ __set_errno (ENOMEM);
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+ return 0;
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+ }
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+
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void *(*hook) (size_t, size_t, const void *) =
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force_reg (__memalign_hook);
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if (__builtin_expect (hook != NULL, 0))
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diff --git a/malloc/malloc.c b/malloc/malloc.c
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index 3148c5f..f7718a9 100644
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--- a/malloc/malloc.c
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+++ b/malloc/malloc.c
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@@ -3015,6 +3015,13 @@ __libc_memalign(size_t alignment, size_t bytes)
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/* Otherwise, ensure that it is at least a minimum chunk size */
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if (alignment < MINSIZE) alignment = MINSIZE;
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+ /* Check for overflow. */
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+ if (bytes > SIZE_MAX - alignment - MINSIZE)
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+ {
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+ __set_errno (ENOMEM);
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+ return 0;
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+ }
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+
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arena_get(ar_ptr, bytes + alignment + MINSIZE);
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if(!ar_ptr)
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return 0;
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@ -0,0 +1,485 @@
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diff --git a/csu/libc-start.c b/csu/libc-start.c
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index e5da3ef..c898d06 100644
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--- a/csu/libc-start.c
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+++ b/csu/libc-start.c
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@@ -37,6 +37,12 @@ extern void __pthread_initialize_minimal (void);
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in thread local area. */
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uintptr_t __stack_chk_guard attribute_relro;
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# endif
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+# ifndef THREAD_SET_POINTER_GUARD
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+/* Only exported for architectures that don't store the pointer guard
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+ value in thread local area. */
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+uintptr_t __pointer_chk_guard_local
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+ attribute_relro attribute_hidden __attribute__ ((nocommon));
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+# endif
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#endif
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#ifdef HAVE_PTR_NTHREADS
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@@ -195,6 +201,16 @@ LIBC_START_MAIN (int (*main) (int, char **, char ** MAIN_AUXVEC_DECL),
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# else
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__stack_chk_guard = stack_chk_guard;
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# endif
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+
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+ /* Set up the pointer guard value. */
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+ uintptr_t pointer_chk_guard = _dl_setup_pointer_guard (_dl_random,
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+ stack_chk_guard);
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+# ifdef THREAD_SET_POINTER_GUARD
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+ THREAD_SET_POINTER_GUARD (pointer_chk_guard);
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+# else
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+ __pointer_chk_guard_local = pointer_chk_guard;
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+# endif
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+
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#endif
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/* Register the destructor of the dynamic linker if there is any. */
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diff --git a/elf/Makefile b/elf/Makefile
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index aaa9534..cb8da93 100644
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--- a/elf/Makefile
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+++ b/elf/Makefile
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@@ -121,7 +121,8 @@ endif
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tests = tst-tls1 tst-tls2 tst-tls9 tst-leaks1 \
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tst-array1 tst-array2 tst-array3 tst-array4 tst-array5
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tests-static = tst-tls1-static tst-tls2-static tst-stackguard1-static \
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- tst-leaks1-static tst-array1-static tst-array5-static
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+ tst-leaks1-static tst-array1-static tst-array5-static \
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+ tst-ptrguard1-static
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ifeq (yes,$(build-shared))
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tests-static += tst-tls9-static
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tst-tls9-static-ENV = \
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@@ -145,7 +146,8 @@ tests += loadtest restest1 preloadtest loadfail multiload origtest resolvfail \
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tst-audit1 tst-audit2 tst-audit8 \
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tst-stackguard1 tst-addr1 tst-thrlock \
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tst-unique1 tst-unique2 tst-unique3 tst-unique4 \
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- tst-initorder tst-initorder2 tst-relsort1 tst-null-argv
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+ tst-initorder tst-initorder2 tst-relsort1 tst-null-argv \
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+ tst-ptrguard1
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# reldep9
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test-srcs = tst-pathopt
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selinux-enabled := $(shell cat /selinux/enforce 2> /dev/null)
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@@ -1016,6 +1018,9 @@ LDFLAGS-order2mod2.so = $(no-as-needed)
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tst-stackguard1-ARGS = --command "$(host-test-program-cmd) --child"
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tst-stackguard1-static-ARGS = --command "$(objpfx)tst-stackguard1-static --child"
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+tst-ptrguard1-ARGS = --command "$(host-test-program-cmd) --child"
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+tst-ptrguard1-static-ARGS = --command "$(objpfx)tst-ptrguard1-static --child"
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+
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$(objpfx)tst-leaks1: $(libdl)
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$(objpfx)tst-leaks1-mem: $(objpfx)tst-leaks1.out
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$(common-objpfx)malloc/mtrace $(objpfx)tst-leaks1.mtrace > $@
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diff --git a/elf/tst-ptrguard1-static.c b/elf/tst-ptrguard1-static.c
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new file mode 100644
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index 0000000..7aff3b7
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--- /dev/null
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+++ b/elf/tst-ptrguard1-static.c
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@@ -0,0 +1 @@
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+#include "tst-ptrguard1.c"
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diff --git a/elf/tst-ptrguard1.c b/elf/tst-ptrguard1.c
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new file mode 100644
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index 0000000..c344a04
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--- /dev/null
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+++ b/elf/tst-ptrguard1.c
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@@ -0,0 +1,202 @@
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+/* Copyright (C) 2013 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
|
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+ modify it under the terms of the GNU Lesser General Public
|
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+ License as published by the Free Software Foundation; either
|
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+ version 2.1 of the License, or (at your option) any later version.
|
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+
|
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+ The GNU C Library is distributed in the hope that it will be useful,
|
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+ but WITHOUT ANY WARRANTY; without even the implied warranty of
|
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+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
+ Lesser General Public License for more details.
|
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+
|
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+ You should have received a copy of the GNU Lesser General Public
|
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+ License along with the GNU C Library; if not, see
|
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+ <http://www.gnu.org/licenses/>. */
|
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+
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+#include <errno.h>
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+#include <stdbool.h>
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+#include <stdio.h>
|
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+#include <stdlib.h>
|
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+#include <string.h>
|
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+#include <sys/wait.h>
|
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+#include <stackguard-macros.h>
|
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+#include <tls.h>
|
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+#include <unistd.h>
|
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+
|
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+#ifndef POINTER_CHK_GUARD
|
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+extern uintptr_t __pointer_chk_guard;
|
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+# define POINTER_CHK_GUARD __pointer_chk_guard
|
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+#endif
|
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+
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+static const char *command;
|
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+static bool child;
|
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+static uintptr_t ptr_chk_guard_copy;
|
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+static bool ptr_chk_guard_copy_set;
|
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+static int fds[2];
|
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+
|
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+static void __attribute__ ((constructor))
|
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+con (void)
|
||||
+{
|
||||
+ ptr_chk_guard_copy = POINTER_CHK_GUARD;
|
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+ ptr_chk_guard_copy_set = true;
|
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+}
|
||||
+
|
||||
+static int
|
||||
+uintptr_t_cmp (const void *a, const void *b)
|
||||
+{
|
||||
+ if (*(uintptr_t *) a < *(uintptr_t *) b)
|
||||
+ return 1;
|
||||
+ if (*(uintptr_t *) a > *(uintptr_t *) b)
|
||||
+ return -1;
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+static int
|
||||
+do_test (void)
|
||||
+{
|
||||
+ if (!ptr_chk_guard_copy_set)
|
||||
+ {
|
||||
+ puts ("constructor has not been run");
|
||||
+ return 1;
|
||||
+ }
|
||||
+
|
||||
+ if (ptr_chk_guard_copy != POINTER_CHK_GUARD)
|
||||
+ {
|
||||
+ puts ("POINTER_CHK_GUARD changed between constructor and do_test");
|
||||
+ return 1;
|
||||
+ }
|
||||
+
|
||||
+ if (child)
|
||||
+ {
|
||||
+ write (2, &ptr_chk_guard_copy, sizeof (ptr_chk_guard_copy));
|
||||
+ return 0;
|
||||
+ }
|
||||
+
|
||||
+ if (command == NULL)
|
||||
+ {
|
||||
+ puts ("missing --command or --child argument");
|
||||
+ return 1;
|
||||
+ }
|
||||
+
|
||||
+#define N 16
|
||||
+ uintptr_t child_ptr_chk_guards[N + 1];
|
||||
+ child_ptr_chk_guards[N] = ptr_chk_guard_copy;
|
||||
+ int i;
|
||||
+ for (i = 0; i < N; ++i)
|
||||
+ {
|
||||
+ if (pipe (fds) < 0)
|
||||
+ {
|
||||
+ printf ("couldn't create pipe: %m\n");
|
||||
+ return 1;
|
||||
+ }
|
||||
+
|
||||
+ pid_t pid = fork ();
|
||||
+ if (pid < 0)
|
||||
+ {
|
||||
+ printf ("fork failed: %m\n");
|
||||
+ return 1;
|
||||
+ }
|
||||
+
|
||||
+ if (!pid)
|
||||
+ {
|
||||
+ if (ptr_chk_guard_copy != POINTER_CHK_GUARD)
|
||||
+ {
|
||||
+ puts ("POINTER_CHK_GUARD changed after fork");
|
||||
+ exit (1);
|
||||
+ }
|
||||
+
|
||||
+ close (fds[0]);
|
||||
+ close (2);
|
||||
+ dup2 (fds[1], 2);
|
||||
+ close (fds[1]);
|
||||
+
|
||||
+ system (command);
|
||||
+ exit (0);
|
||||
+ }
|
||||
+
|
||||
+ close (fds[1]);
|
||||
+
|
||||
+ if (TEMP_FAILURE_RETRY (read (fds[0], &child_ptr_chk_guards[i],
|
||||
+ sizeof (uintptr_t))) != sizeof (uintptr_t))
|
||||
+ {
|
||||
+ puts ("could not read ptr_chk_guard value from child");
|
||||
+ return 1;
|
||||
+ }
|
||||
+
|
||||
+ close (fds[0]);
|
||||
+
|
||||
+ pid_t termpid;
|
||||
+ int status;
|
||||
+ termpid = TEMP_FAILURE_RETRY (waitpid (pid, &status, 0));
|
||||
+ if (termpid == -1)
|
||||
+ {
|
||||
+ printf ("waitpid failed: %m\n");
|
||||
+ return 1;
|
||||
+ }
|
||||
+ else if (termpid != pid)
|
||||
+ {
|
||||
+ printf ("waitpid returned %ld != %ld\n",
|
||||
+ (long int) termpid, (long int) pid);
|
||||
+ return 1;
|
||||
+ }
|
||||
+ else if (!WIFEXITED (status) || WEXITSTATUS (status))
|
||||
+ {
|
||||
+ puts ("child hasn't exited with exit status 0");
|
||||
+ return 1;
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ qsort (child_ptr_chk_guards, N + 1, sizeof (uintptr_t), uintptr_t_cmp);
|
||||
+
|
||||
+ /* The default pointer guard is the same as the default stack guard.
|
||||
+ They are only set to default if dl_random is NULL. */
|
||||
+ uintptr_t default_guard = 0;
|
||||
+ unsigned char *p = (unsigned char *) &default_guard;
|
||||
+ p[sizeof (uintptr_t) - 1] = 255;
|
||||
+ p[sizeof (uintptr_t) - 2] = '\n';
|
||||
+ p[0] = 0;
|
||||
+
|
||||
+ /* Test if the pointer guard canaries are either randomized,
|
||||
+ or equal to the default pointer guard value.
|
||||
+ Even with randomized pointer guards it might happen
|
||||
+ that the random number generator generates the same
|
||||
+ values, but if that happens in more than half from
|
||||
+ the 16 runs, something is very wrong. */
|
||||
+ int ndifferences = 0;
|
||||
+ int ndefaults = 0;
|
||||
+ for (i = 0; i < N; ++i)
|
||||
+ {
|
||||
+ if (child_ptr_chk_guards[i] != child_ptr_chk_guards[i+1])
|
||||
+ ndifferences++;
|
||||
+ else if (child_ptr_chk_guards[i] == default_guard)
|
||||
+ ndefaults++;
|
||||
+ }
|
||||
+
|
||||
+ printf ("differences %d defaults %d\n", ndifferences, ndefaults);
|
||||
+
|
||||
+ if (ndifferences < N / 2 && ndefaults < N / 2)
|
||||
+ {
|
||||
+ puts ("pointer guard values are not randomized enough");
|
||||
+ puts ("nor equal to the default value");
|
||||
+ return 1;
|
||||
+ }
|
||||
+
|
||||
+ return 0;
|
||||
+}
|
||||
+
|
||||
+#define OPT_COMMAND 10000
|
||||
+#define OPT_CHILD 10001
|
||||
+#define CMDLINE_OPTIONS \
|
||||
+ { "command", required_argument, NULL, OPT_COMMAND }, \
|
||||
+ { "child", no_argument, NULL, OPT_CHILD },
|
||||
+#define CMDLINE_PROCESS \
|
||||
+ case OPT_COMMAND: \
|
||||
+ command = optarg; \
|
||||
+ break; \
|
||||
+ case OPT_CHILD: \
|
||||
+ child = true; \
|
||||
+ break;
|
||||
+#define TEST_FUNCTION do_test ()
|
||||
+#include "../test-skeleton.c"
|
||||
diff --git a/ports/sysdeps/ia64/stackguard-macros.h b/ports/sysdeps/ia64/stackguard-macros.h
|
||||
index dc683c2..3907293 100644
|
||||
--- a/ports/sysdeps/ia64/stackguard-macros.h
|
||||
+++ b/ports/sysdeps/ia64/stackguard-macros.h
|
||||
@@ -2,3 +2,6 @@
|
||||
|
||||
#define STACK_CHK_GUARD \
|
||||
({ uintptr_t x; asm ("adds %0 = -8, r13;; ld8 %0 = [%0]" : "=r" (x)); x; })
|
||||
+
|
||||
+#define POINTER_CHK_GUARD \
|
||||
+ ({ uintptr_t x; asm ("adds %0 = -16, r13;; ld8 %0 = [%0]" : "=r" (x)); x; })
|
||||
diff --git a/ports/sysdeps/tile/stackguard-macros.h b/ports/sysdeps/tile/stackguard-macros.h
|
||||
index 589ea2b..f2e041b 100644
|
||||
--- a/ports/sysdeps/tile/stackguard-macros.h
|
||||
+++ b/ports/sysdeps/tile/stackguard-macros.h
|
||||
@@ -4,11 +4,17 @@
|
||||
# if __WORDSIZE == 64
|
||||
# define STACK_CHK_GUARD \
|
||||
({ uintptr_t x; asm ("addi %0, tp, -16; ld %0, %0" : "=r" (x)); x; })
|
||||
+# define POINTER_CHK_GUARD \
|
||||
+ ({ uintptr_t x; asm ("addi %0, tp, -24; ld %0, %0" : "=r" (x)); x; })
|
||||
# else
|
||||
# define STACK_CHK_GUARD \
|
||||
({ uintptr_t x; asm ("addi %0, tp, -8; ld4s %0, %0" : "=r" (x)); x; })
|
||||
+# define POINTER_CHK_GUARD \
|
||||
+ ({ uintptr_t x; asm ("addi %0, tp, -12; ld4s %0, %0" : "=r" (x)); x; })
|
||||
# endif
|
||||
#else
|
||||
# define STACK_CHK_GUARD \
|
||||
({ uintptr_t x; asm ("addi %0, tp, -8; lw %0, %0" : "=r" (x)); x; })
|
||||
+# define POINTER_CHK_GUARD \
|
||||
+ ({ uintptr_t x; asm ("addi %0, tp, -12; lw %0, %0" : "=r" (x)); x; })
|
||||
#endif
|
||||
diff --git a/sysdeps/generic/stackguard-macros.h b/sysdeps/generic/stackguard-macros.h
|
||||
index ababf65..4fa3d96 100644
|
||||
--- a/sysdeps/generic/stackguard-macros.h
|
||||
+++ b/sysdeps/generic/stackguard-macros.h
|
||||
@@ -2,3 +2,6 @@
|
||||
|
||||
extern uintptr_t __stack_chk_guard;
|
||||
#define STACK_CHK_GUARD __stack_chk_guard
|
||||
+
|
||||
+extern uintptr_t __pointer_chk_guard_local;
|
||||
+#define POINTER_CHK_GUARD __pointer_chk_guard_local
|
||||
diff --git a/sysdeps/i386/stackguard-macros.h b/sysdeps/i386/stackguard-macros.h
|
||||
index 8c31e19..0397629 100644
|
||||
--- a/sysdeps/i386/stackguard-macros.h
|
||||
+++ b/sysdeps/i386/stackguard-macros.h
|
||||
@@ -2,3 +2,11 @@
|
||||
|
||||
#define STACK_CHK_GUARD \
|
||||
({ uintptr_t x; asm ("movl %%gs:0x14, %0" : "=r" (x)); x; })
|
||||
+
|
||||
+#define POINTER_CHK_GUARD \
|
||||
+ ({ \
|
||||
+ uintptr_t x; \
|
||||
+ asm ("movl %%gs:%c1, %0" : "=r" (x) \
|
||||
+ : "i" (offsetof (tcbhead_t, pointer_guard))); \
|
||||
+ x; \
|
||||
+ })
|
||||
diff --git a/sysdeps/powerpc/powerpc32/stackguard-macros.h b/sysdeps/powerpc/powerpc32/stackguard-macros.h
|
||||
index 839f6a4..b3d0af8 100644
|
||||
--- a/sysdeps/powerpc/powerpc32/stackguard-macros.h
|
||||
+++ b/sysdeps/powerpc/powerpc32/stackguard-macros.h
|
||||
@@ -2,3 +2,13 @@
|
||||
|
||||
#define STACK_CHK_GUARD \
|
||||
({ uintptr_t x; asm ("lwz %0,-28680(2)" : "=r" (x)); x; })
|
||||
+
|
||||
+#define POINTER_CHK_GUARD \
|
||||
+ ({ \
|
||||
+ uintptr_t x; \
|
||||
+ asm ("lwz %0,%1(2)" \
|
||||
+ : "=r" (x) \
|
||||
+ : "i" (offsetof (tcbhead_t, pointer_guard) - TLS_TCB_OFFSET - sizeof (tcbhead_t)) \
|
||||
+ ); \
|
||||
+ x; \
|
||||
+ })
|
||||
diff --git a/sysdeps/powerpc/powerpc64/stackguard-macros.h b/sysdeps/powerpc/powerpc64/stackguard-macros.h
|
||||
index 9da879c..4620f96 100644
|
||||
--- a/sysdeps/powerpc/powerpc64/stackguard-macros.h
|
||||
+++ b/sysdeps/powerpc/powerpc64/stackguard-macros.h
|
||||
@@ -2,3 +2,13 @@
|
||||
|
||||
#define STACK_CHK_GUARD \
|
||||
({ uintptr_t x; asm ("ld %0,-28688(13)" : "=r" (x)); x; })
|
||||
+
|
||||
+#define POINTER_CHK_GUARD \
|
||||
+ ({ \
|
||||
+ uintptr_t x; \
|
||||
+ asm ("ld %0,%1(2)" \
|
||||
+ : "=r" (x) \
|
||||
+ : "i" (offsetof (tcbhead_t, pointer_guard) - TLS_TCB_OFFSET - sizeof (tcbhead_t)) \
|
||||
+ ); \
|
||||
+ x; \
|
||||
+ })
|
||||
diff --git a/sysdeps/s390/s390-32/stackguard-macros.h b/sysdeps/s390/s390-32/stackguard-macros.h
|
||||
index b74c579..449e8d4 100644
|
||||
--- a/sysdeps/s390/s390-32/stackguard-macros.h
|
||||
+++ b/sysdeps/s390/s390-32/stackguard-macros.h
|
||||
@@ -2,3 +2,14 @@
|
||||
|
||||
#define STACK_CHK_GUARD \
|
||||
({ uintptr_t x; asm ("ear %0,%%a0; l %0,0x14(%0)" : "=a" (x)); x; })
|
||||
+
|
||||
+/* On s390/s390x there is no unique pointer guard, instead we use the
|
||||
+ same value as the stack guard. */
|
||||
+#define POINTER_CHK_GUARD \
|
||||
+ ({ \
|
||||
+ uintptr_t x; \
|
||||
+ asm ("ear %0,%%a0; l %0,%1(%0)" \
|
||||
+ : "=a" (x) \
|
||||
+ : "i" (offsetof (tcbhead_t, stack_guard))); \
|
||||
+ x; \
|
||||
+ })
|
||||
diff --git a/sysdeps/s390/s390-64/stackguard-macros.h b/sysdeps/s390/s390-64/stackguard-macros.h
|
||||
index 0cebb5f..c8270fb 100644
|
||||
--- a/sysdeps/s390/s390-64/stackguard-macros.h
|
||||
+++ b/sysdeps/s390/s390-64/stackguard-macros.h
|
||||
@@ -2,3 +2,17 @@
|
||||
|
||||
#define STACK_CHK_GUARD \
|
||||
({ uintptr_t x; asm ("ear %0,%%a0; sllg %0,%0,32; ear %0,%%a1; lg %0,0x28(%0)" : "=a" (x)); x; })
|
||||
+
|
||||
+/* On s390/s390x there is no unique pointer guard, instead we use the
|
||||
+ same value as the stack guard. */
|
||||
+#define POINTER_CHK_GUARD \
|
||||
+ ({ \
|
||||
+ uintptr_t x; \
|
||||
+ asm ("ear %0,%%a0;" \
|
||||
+ "sllg %0,%0,32;" \
|
||||
+ "ear %0,%%a1;" \
|
||||
+ "lg %0,%1(%0)" \
|
||||
+ : "=a" (x) \
|
||||
+ : "i" (offsetof (tcbhead_t, stack_guard))); \
|
||||
+ x; \
|
||||
+ })
|
||||
diff --git a/sysdeps/sparc/sparc32/stackguard-macros.h b/sysdeps/sparc/sparc32/stackguard-macros.h
|
||||
index c0b02b0..1eef0f1 100644
|
||||
--- a/sysdeps/sparc/sparc32/stackguard-macros.h
|
||||
+++ b/sysdeps/sparc/sparc32/stackguard-macros.h
|
||||
@@ -2,3 +2,6 @@
|
||||
|
||||
#define STACK_CHK_GUARD \
|
||||
({ uintptr_t x; asm ("ld [%%g7+0x14], %0" : "=r" (x)); x; })
|
||||
+
|
||||
+#define POINTER_CHK_GUARD \
|
||||
+ ({ uintptr_t x; asm ("ld [%%g7+0x18], %0" : "=r" (x)); x; })
|
||||
diff --git a/sysdeps/sparc/sparc64/stackguard-macros.h b/sysdeps/sparc/sparc64/stackguard-macros.h
|
||||
index 80f0635..cc0c12c 100644
|
||||
--- a/sysdeps/sparc/sparc64/stackguard-macros.h
|
||||
+++ b/sysdeps/sparc/sparc64/stackguard-macros.h
|
||||
@@ -2,3 +2,6 @@
|
||||
|
||||
#define STACK_CHK_GUARD \
|
||||
({ uintptr_t x; asm ("ldx [%%g7+0x28], %0" : "=r" (x)); x; })
|
||||
+
|
||||
+#define POINTER_CHK_GUARD \
|
||||
+ ({ uintptr_t x; asm ("ldx [%%g7+0x30], %0" : "=r" (x)); x; })
|
||||
diff --git a/sysdeps/x86_64/stackguard-macros.h b/sysdeps/x86_64/stackguard-macros.h
|
||||
index d7fedb3..1948800 100644
|
||||
--- a/sysdeps/x86_64/stackguard-macros.h
|
||||
+++ b/sysdeps/x86_64/stackguard-macros.h
|
||||
@@ -4,3 +4,8 @@
|
||||
({ uintptr_t x; \
|
||||
asm ("mov %%fs:%c1, %0" : "=r" (x) \
|
||||
: "i" (offsetof (tcbhead_t, stack_guard))); x; })
|
||||
+
|
||||
+#define POINTER_CHK_GUARD \
|
||||
+ ({ uintptr_t x; \
|
||||
+ asm ("mov %%fs:%c1, %0" : "=r" (x) \
|
||||
+ : "i" (offsetof (tcbhead_t, pointer_guard))); x; })
|
||||
diff --git a/elf/Makefile b/elf/Makefile
|
||||
index cb8da93..27d249b 100644
|
||||
--- a/elf/Makefile
|
||||
+++ b/elf/Makefile
|
||||
@@ -1019,6 +1019,9 @@ tst-stackguard1-ARGS = --command "$(host-test-program-cmd) --child"
|
||||
tst-stackguard1-static-ARGS = --command "$(objpfx)tst-stackguard1-static --child"
|
||||
|
||||
tst-ptrguard1-ARGS = --command "$(host-test-program-cmd) --child"
|
||||
+# When built statically, the pointer guard interface uses
|
||||
+# __pointer_chk_guard_local.
|
||||
+CFLAGS-tst-ptrguard1-static.c = -DPTRGUARD_LOCAL
|
||||
tst-ptrguard1-static-ARGS = --command "$(objpfx)tst-ptrguard1-static --child"
|
||||
|
||||
$(objpfx)tst-leaks1: $(libdl)
|
||||
diff --git a/sysdeps/generic/stackguard-macros.h b/sysdeps/generic/stackguard-macros.h
|
||||
index 4fa3d96..b4a6b23 100644
|
||||
--- a/sysdeps/generic/stackguard-macros.h
|
||||
+++ b/sysdeps/generic/stackguard-macros.h
|
||||
@@ -3,5 +3,10 @@
|
||||
extern uintptr_t __stack_chk_guard;
|
||||
#define STACK_CHK_GUARD __stack_chk_guard
|
||||
|
||||
+#ifdef PTRGUARD_LOCAL
|
||||
extern uintptr_t __pointer_chk_guard_local;
|
||||
-#define POINTER_CHK_GUARD __pointer_chk_guard_local
|
||||
+# define POINTER_CHK_GUARD __pointer_chk_guard_local
|
||||
+#else
|
||||
+extern uintptr_t __pointer_chk_guard;
|
||||
+# define POINTER_CHK_GUARD __pointer_chk_guard
|
||||
+#endif
|
|
@ -1,7 +1,7 @@
|
|||
diff --git a/manual/conf.texi b/manual/conf.texi
|
||||
index 7eb8b36..c720063 100644
|
||||
--- manual/conf.texi
|
||||
+++ manual/conf.texi
|
||||
--- a/manual/conf.texi
|
||||
+++ b/manual/conf.texi
|
||||
@@ -1149,6 +1149,9 @@ typed ahead as input. @xref{I/O Queues}.
|
||||
@deftypevr Macro int NAME_MAX
|
||||
The uniform system limit (if any) for the length of a file name component, not
|
||||
|
@ -34,8 +34,8 @@ index 7eb8b36..c720063 100644
|
|||
|
||||
diff --git a/manual/filesys.texi b/manual/filesys.texi
|
||||
index 1df9cf2..814c210 100644
|
||||
--- manual/filesys.texi
|
||||
+++ manual/filesys.texi
|
||||
--- a/manual/filesys.texi
|
||||
+++ b/manual/filesys.texi
|
||||
@@ -444,9 +444,9 @@ symbols are declared in the header file @file{dirent.h}.
|
||||
@comment POSIX.1
|
||||
@deftypefun {struct dirent *} readdir (DIR *@var{dirstream})
|
||||
|
@ -137,8 +137,8 @@ index 1df9cf2..814c210 100644
|
|||
the second parameter of @code{readdir_r} might not be enough. Some
|
||||
diff --git a/sysdeps/posix/dirstream.h b/sysdeps/posix/dirstream.h
|
||||
index a7a074d..8e8570d 100644
|
||||
--- sysdeps/posix/dirstream.h
|
||||
+++ sysdeps/posix/dirstream.h
|
||||
--- a/sysdeps/posix/dirstream.h
|
||||
+++ b/sysdeps/posix/dirstream.h
|
||||
@@ -39,6 +39,8 @@ struct __dirstream
|
||||
|
||||
off_t filepos; /* Position of next entry to read. */
|
||||
|
@ -150,8 +150,8 @@ index a7a074d..8e8570d 100644
|
|||
};
|
||||
diff --git a/sysdeps/posix/opendir.c b/sysdeps/posix/opendir.c
|
||||
index ddfc3a7..fc05b0f 100644
|
||||
--- sysdeps/posix/opendir.c
|
||||
+++ sysdeps/posix/opendir.c
|
||||
--- a/sysdeps/posix/opendir.c
|
||||
+++ b/sysdeps/posix/opendir.c
|
||||
@@ -231,6 +231,7 @@ __alloc_dir (int fd, bool close_fd, int flags, const struct stat64 *statp)
|
||||
dirp->size = 0;
|
||||
dirp->offset = 0;
|
||||
|
@ -162,8 +162,8 @@ index ddfc3a7..fc05b0f 100644
|
|||
}
|
||||
diff --git a/sysdeps/posix/readdir_r.c b/sysdeps/posix/readdir_r.c
|
||||
index b5a8e2e..8ed5c3f 100644
|
||||
--- sysdeps/posix/readdir_r.c
|
||||
+++ sysdeps/posix/readdir_r.c
|
||||
--- a/sysdeps/posix/readdir_r.c
|
||||
+++ b/sysdeps/posix/readdir_r.c
|
||||
@@ -40,6 +40,7 @@ __READDIR_R (DIR *dirp, DIRENT_TYPE *entry, DIRENT_TYPE **result)
|
||||
DIRENT_TYPE *dp;
|
||||
size_t reclen;
|
||||
|
@ -244,8 +244,8 @@ index b5a8e2e..8ed5c3f 100644
|
|||
#ifdef __READDIR_R_ALIAS
|
||||
diff --git a/sysdeps/posix/rewinddir.c b/sysdeps/posix/rewinddir.c
|
||||
index 2935a8e..d4991ad 100644
|
||||
--- sysdeps/posix/rewinddir.c
|
||||
+++ sysdeps/posix/rewinddir.c
|
||||
--- a/sysdeps/posix/rewinddir.c
|
||||
+++ b/sysdeps/posix/rewinddir.c
|
||||
@@ -33,6 +33,7 @@ rewinddir (dirp)
|
||||
dirp->filepos = 0;
|
||||
dirp->offset = 0;
|
||||
|
@ -256,8 +256,8 @@ index 2935a8e..d4991ad 100644
|
|||
#endif
|
||||
diff --git a/sysdeps/unix/sysv/linux/i386/readdir64_r.c b/sysdeps/unix/sysv/linux/i386/readdir64_r.c
|
||||
index 8ebbcfd..a7d114e 100644
|
||||
--- sysdeps/unix/sysv/linux/i386/readdir64_r.c
|
||||
+++ sysdeps/unix/sysv/linux/i386/readdir64_r.c
|
||||
--- a/sysdeps/unix/sysv/linux/i386/readdir64_r.c
|
||||
+++ b/sysdeps/unix/sysv/linux/i386/readdir64_r.c
|
||||
@@ -18,7 +18,6 @@
|
||||
#define __READDIR_R __readdir64_r
|
||||
#define __GETDENTS __getdents64
|
||||
|
@ -268,8 +268,8 @@ index 8ebbcfd..a7d114e 100644
|
|||
|
||||
diff --git a/sysdeps/unix/sysv/linux/wordsize-64/readdir_r.c b/sysdeps/unix/sysv/linux/wordsize-64/readdir_r.c
|
||||
index 5ed8e95..290f2c8 100644
|
||||
--- sysdeps/unix/sysv/linux/wordsize-64/readdir_r.c
|
||||
+++ sysdeps/unix/sysv/linux/wordsize-64/readdir_r.c
|
||||
--- a/sysdeps/unix/sysv/linux/wordsize-64/readdir_r.c
|
||||
+++ b/sysdeps/unix/sysv/linux/wordsize-64/readdir_r.c
|
||||
@@ -1,5 +1,4 @@
|
||||
#define readdir64_r __no_readdir64_r_decl
|
||||
-#define GETDENTS_64BIT_ALIGNED 1
|
|
@ -0,0 +1,67 @@
|
|||
diff --git a/stdio-common/tst-sscanf.c b/stdio-common/tst-sscanf.c
|
||||
index 1edb227..3c34f58 100644
|
||||
--- a/stdio-common/tst-sscanf.c
|
||||
+++ b/stdio-common/tst-sscanf.c
|
||||
@@ -109,6 +109,19 @@ struct test double_tests[] =
|
||||
{ L("-inf"), L("%g"), 1 }
|
||||
};
|
||||
|
||||
+struct test2
|
||||
+{
|
||||
+ const CHAR *str;
|
||||
+ const CHAR *fmt;
|
||||
+ int retval;
|
||||
+ char residual;
|
||||
+} double_tests2[] =
|
||||
+{
|
||||
+ { L("0e+0"), L("%g%c"), 1, 0 },
|
||||
+ { L("0xe+0"), L("%g%c"), 2, '+' },
|
||||
+ { L("0x.e+0"), L("%g%c"), 2, '+' },
|
||||
+};
|
||||
+
|
||||
int
|
||||
main (void)
|
||||
{
|
||||
@@ -196,5 +209,26 @@ main (void)
|
||||
}
|
||||
}
|
||||
|
||||
+ for (i = 0; i < sizeof (double_tests2) / sizeof (double_tests2[0]); ++i)
|
||||
+ {
|
||||
+ double dummy;
|
||||
+ int ret;
|
||||
+ char c = 0;
|
||||
+
|
||||
+ if ((ret = SSCANF (double_tests2[i].str, double_tests2[i].fmt,
|
||||
+ &dummy, &c)) != double_tests2[i].retval)
|
||||
+ {
|
||||
+ printf ("double_tests2[%d] returned %d != %d\n",
|
||||
+ i, ret, double_tests2[i].retval);
|
||||
+ result = 1;
|
||||
+ }
|
||||
+ else if (ret == 2 && c != double_tests2[i].residual)
|
||||
+ {
|
||||
+ printf ("double_tests2[%d] stopped at '%c' != '%c'\n",
|
||||
+ i, c, double_tests2[i].residual);
|
||||
+ result = 1;
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
return result;
|
||||
}
|
||||
diff --git a/stdio-common/vfscanf.c b/stdio-common/vfscanf.c
|
||||
index 78dc2fc..e6fa8f3 100644
|
||||
--- a/stdio-common/vfscanf.c
|
||||
+++ b/stdio-common/vfscanf.c
|
||||
@@ -1966,6 +1966,8 @@ _IO_vfscanf_internal (_IO_FILE *s, const char *format, _IO_va_list argptr,
|
||||
if (width > 0)
|
||||
--width;
|
||||
}
|
||||
+ else
|
||||
+ got_digit = 1;
|
||||
}
|
||||
|
||||
while (1)
|
||||
--
|
||||
1.8.4.2
|
||||
|
File diff suppressed because it is too large
Load Diff
|
@ -1,5 +1,7 @@
|
|||
--- sysdeps/x86_64/multiarch/strstr.c
|
||||
+++ sysdeps/x86_64/multiarch/strstr.c
|
||||
diff --git a/sysdeps/x86_64/multiarch/strstr.c b/sysdeps/x86_64/multiarch/strstr.c
|
||||
index cd63b68..03d8b9a 100644
|
||||
--- a/sysdeps/x86_64/multiarch/strstr.c
|
||||
+++ b/sysdeps/x86_64/multiarch/strstr.c
|
||||
@@ -86,7 +86,7 @@
|
||||
/* Simple replacement of movdqu to address 4KB boundary cross issue.
|
||||
If EOS occurs within less than 16B before 4KB boundary, we don't
|
||||
|
@ -9,4 +11,3 @@
|
|||
__m128i_strloadu (const unsigned char * p, __m128i zero)
|
||||
{
|
||||
if (__builtin_expect ((int) ((size_t) p & 0xfff) > 0xff0, 0))
|
||||
|
|
@ -1,32 +0,0 @@
|
|||
See http://hmarco.org/bugs/CVE-2013-4788.html
|
||||
|
||||
--- csu/libc-start.c 2012-12-25 04:02:13.000000000 +0100
|
||||
+++ csu/libc-start.c 2013-07-10 00:13:48.000000000 +0200
|
||||
@@ -38,6 +38,12 @@ extern void __pthread_initialize_minimal
|
||||
in thread local area. */
|
||||
uintptr_t __stack_chk_guard attribute_relro;
|
||||
# endif
|
||||
+
|
||||
+# ifndef THREAD_SET_POINTER_GUARD
|
||||
+uintptr_t __pointer_chk_guard_local
|
||||
+ attribute_relro attribute_hidden __attribute__ ((nocommon));
|
||||
+# endif
|
||||
+
|
||||
#endif
|
||||
|
||||
#ifdef HAVE_PTR_NTHREADS
|
||||
@@ -184,6 +190,14 @@ LIBC_START_MAIN (int (*main) (int, char
|
||||
# else
|
||||
__stack_chk_guard = stack_chk_guard;
|
||||
# endif
|
||||
+ uintptr_t pointer_chk_guard = _dl_setup_pointer_guard (_dl_random,
|
||||
+ stack_chk_guard);
|
||||
+# ifdef THREAD_SET_POINTER_GUARD
|
||||
+ THREAD_SET_POINTER_GUARD (pointer_chk_guard);
|
||||
+# else
|
||||
+ __pointer_chk_guard_local = pointer_chk_guard;
|
||||
+# endif
|
||||
+
|
||||
#endif
|
||||
|
||||
/* Register the destructor of the dynamic linker if there is any. */
|
|
@ -1,7 +1,11 @@
|
|||
# Template file for 'glibc'
|
||||
pkgname=glibc
|
||||
version=2.18
|
||||
revision=3
|
||||
revision=4
|
||||
bootstrap=yes
|
||||
# Force creation of -dbg pkg, required by valgrind.
|
||||
force_debug_pkgs=yes
|
||||
patch_args="-Np1"
|
||||
short_desc="The GNU C library"
|
||||
maintainer="Juan RP <xtraeme@gmail.com>"
|
||||
homepage="http://www.gnu.org/software/libc"
|
||||
|
@ -9,18 +13,11 @@ license="GPL-2, LGPL-2.1, BSD"
|
|||
distfiles="http://ftp.gnu.org/gnu/glibc/glibc-${version}.tar.xz"
|
||||
checksum=2cb4e1e381928f1e5e55e71ab1ba8e0ea7ede75ff9709770435bfd018ea257a3
|
||||
|
||||
bootstrap=yes
|
||||
|
||||
if [ "$CHROOT_READY" ]; then
|
||||
hostmakedepends="bison perl"
|
||||
fi
|
||||
|
||||
# Force creation of -dbg pkg, required by valgrind.
|
||||
force_debug_pkgs=yes
|
||||
|
||||
do_configure() {
|
||||
local _headers _floatabi
|
||||
|
||||
mkdir build
|
||||
cd build
|
||||
|
||||
|
@ -32,26 +29,26 @@ do_configure() {
|
|||
if [ "$XBPS_TARGET_MACHINE" = "i686" ]; then
|
||||
# Build with -mno-tls-direct-seg-refs to avoid performance
|
||||
# problems with Xen on x86 32bit.
|
||||
export CFLAGS="${CFLAGS} -mno-tls-direct-seg-refs"
|
||||
export CFLAGS+=" -mno-tls-direct-seg-refs"
|
||||
elif [ "$XBPS_TARGET_MACHINE" = "armv6l" ]; then
|
||||
# Force hard float ABI.
|
||||
# To build for soft float: --with-float=soft --without-fp.
|
||||
_floatabi="--with-float=hard"
|
||||
configure_args+=" --with-float=hard"
|
||||
fi
|
||||
if [ "$CROSS_BUILD" ]; then
|
||||
_headers="--with-headers=${XBPS_CROSS_BASE}/usr/include"
|
||||
configure_args+=" --with-headers=${XBPS_CROSS_BASE}/usr/include"
|
||||
else
|
||||
_headers="--with-headers=${XBPS_MASTERDIR}/usr/include"
|
||||
configure_args+=" --with-headers=${XBPS_MASTERDIR}/usr/include"
|
||||
fi
|
||||
|
||||
SHELL=/bin/bash ../configure ${configure_args} \
|
||||
--bindir=/usr/bin --sbindir=/usr/sbin \
|
||||
--libdir=/usr/lib --libexecdir=/usr/lib \
|
||||
--enable-add-ons=ports,nptl,libidn --enable-obsolete-rpc \
|
||||
--enable-multi-arch --enable-bind-now \
|
||||
--disable-profile --enable-kernel=2.6.27 \
|
||||
--enable-stack-guard-randomization \
|
||||
--without-cvs --without-gd --libexecdir=/usr/lib \
|
||||
--libdir=/usr/lib ${_floatabi} ${_headers}
|
||||
--enable-stack-guard-randomization --enable-lock-elision \
|
||||
--without-cvs --without-gd
|
||||
}
|
||||
|
||||
do_build() {
|
||||
|
@ -99,7 +96,7 @@ do_install() {
|
|||
}
|
||||
|
||||
glibc-devel_package() {
|
||||
depends="kernel-libc-headers glibc>=${version}"
|
||||
depends="kernel-libc-headers glibc>=${version}_${revision}"
|
||||
short_desc+=" - development files"
|
||||
pkg_install() {
|
||||
vmove usr/include
|
||||
|
@ -148,7 +145,7 @@ glibc_package() {
|
|||
conf_files="
|
||||
/etc/rpc
|
||||
/etc/ld.so.conf"
|
||||
depends="base-files glibc-locales"
|
||||
depends="base-files glibc-locales>=${version}_${revision}"
|
||||
pkg_install() {
|
||||
vmove all
|
||||
}
|
||||
|
|
Loading…
Reference in New Issue