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-rw-r--r--community/libimobiledevice/02a0e03e24bc96bba2e5ea2438c30baf803fd137.patch95
1 files changed, 95 insertions, 0 deletions
diff --git a/community/libimobiledevice/02a0e03e24bc96bba2e5ea2438c30baf803fd137.patch b/community/libimobiledevice/02a0e03e24bc96bba2e5ea2438c30baf803fd137.patch
new file mode 100644
index 0000000000..74263fe52e
--- /dev/null
+++ b/community/libimobiledevice/02a0e03e24bc96bba2e5ea2438c30baf803fd137.patch
@@ -0,0 +1,95 @@
+Upstream: Yes
+From 02a0e03e24bc96bba2e5ea2438c30baf803fd137 Mon Sep 17 00:00:00 2001
+From: Christophe Fergeau
+Date: Tue, 25 Apr 2017 14:09:48 +0200
+Subject: Avoid double free with OpenSSL 1.1.0
+
+Since commit OpenSSL_1_1_0-pre3~178
+https://github.com/openssl/openssl/commit/b184e3ef73200cb3b7914a603b43a5b8a074c85f
+OpenSSL automatically cleans up some of its internal data when the
+program exits. This conflicts with some similar clean up
+libimobiledevice attempts to do, which causes a double-free.
+SSL_COMP_free_compression_methods() was available in OpenSSL 1.0.2,
+and is still there in 1.1.0 as a no-op, so we can use that to free
+the compression methods.
+
+This bug can be hit with a simple idevicebackup2 --help
+
+==14299== Invalid read of size 4
+==14299== at 0x547AEBC: OPENSSL_sk_pop_free (stack.c:263)
+==14299== by 0x508B848: ssl_library_stop (ssl_init.c:182)
+==14299== by 0x5424D11: OPENSSL_cleanup (init.c:402)
+==14299== by 0x5DC3134: __cxa_finalize (cxa_finalize.c:56)
+==14299== by 0x53332B2: ??? (in /usr/lib64/libcrypto.so.1.1.0e)
+==14299== by 0x4011232: _dl_fini (dl-fini.c:235)
+==14299== by 0x5DC2DC7: __run_exit_handlers (exit.c:83)
+==14299== by 0x5DC2E19: exit (exit.c:105)
+==14299== by 0x5DA8604: (below main) (libc-start.c:329)
+==14299== Address 0x6585590 is 0 bytes inside a block of size 40 free'd
+==14299== at 0x4C2FCC8: free (vg_replace_malloc.c:530)
+==14299== by 0x4E43381: sk_SSL_COMP_free (ssl.h:830)
+==14299== by 0x4E434E7: internal_idevice_deinit (idevice.c:103)
+==14299== by 0x5B79643: __pthread_once_slow (pthread_once.c:116)
+==14299== by 0x4E5663A: thread_once (thread.c:104)
+==14299== by 0x4E43525: libimobiledevice_deinitialize (idevice.c:140)
+==14299== by 0x4011232: _dl_fini (dl-fini.c:235)
+==14299== by 0x5DC2DC7: __run_exit_handlers (exit.c:83)
+==14299== by 0x5DC2E19: exit (exit.c:105)
+==14299== by 0x5DA8604: (below main) (libc-start.c:329)
+==14299== Block was alloc'd at
+==14299== at 0x4C2EB1B: malloc (vg_replace_malloc.c:299)
+==14299== by 0x5428908: CRYPTO_zalloc (mem.c:100)
+==14299== by 0x547A9AE: OPENSSL_sk_new (stack.c:108)
+==14299== by 0x5087D43: sk_SSL_COMP_new (ssl.h:830)
+==14299== by 0x5087D43: do_load_builtin_compressions (ssl_ciph.c:482)
+==14299== by 0x5087D43: do_load_builtin_compressions_ossl_ (ssl_ciph.c:476)
+==14299== by 0x5B79643: __pthread_once_slow (pthread_once.c:116)
+==14299== by 0x547B198: CRYPTO_THREAD_run_once (threads_pthread.c:106)
+==14299== by 0x5089F96: load_builtin_compressions (ssl_ciph.c:500)
+==14299== by 0x5089F96: SSL_COMP_get_compression_methods (ssl_ciph.c:1845)
+==14299== by 0x508B68B: ossl_init_ssl_base (ssl_init.c:125)
+==14299== by 0x508B68B: ossl_init_ssl_base_ossl_ (ssl_init.c:25)
+==14299== by 0x5B79643: __pthread_once_slow (pthread_once.c:116)
+==14299== by 0x547B198: CRYPTO_THREAD_run_once (threads_pthread.c:106)
+==14299== by 0x508B90A: OPENSSL_init_ssl (ssl_init.c:227)
+==14299== by 0x4E43416: internal_idevice_init (idevice.c:73)
+=
+
+Signed-off-by: Christophe Fergeau <cfergeau@redhat.com>
+---
+ src/idevice.c | 10 +++++++++-
+ 1 file changed, 9 insertions(+), 1 deletion(-)
+
+(limited to 'src/idevice.c')
+
+diff --git a/src/idevice.c b/src/idevice.c
+index 913038e..d1f13cb 100644
+--- a/src/idevice.c
++++ b/src/idevice.c
+@@ -51,6 +51,14 @@
+ #include "common/debug.h"
+
+ #ifdef HAVE_OPENSSL
++
++#if OPENSSL_VERSION_NUMBER < 0x10002000L
++static void SSL_COMP_free_compression_methods(void)
++{
++ sk_SSL_COMP_free(SSL_COMP_get_compression_methods());
++}
++#endif
++
+ static mutex_t *mutex_buf = NULL;
+ static void locking_function(int mode, int n, const char* file, int line)
+ {
+@@ -100,7 +108,7 @@ static void internal_idevice_deinit(void)
+
+ EVP_cleanup();
+ CRYPTO_cleanup_all_ex_data();
+- sk_SSL_COMP_free(SSL_COMP_get_compression_methods());
++ SSL_COMP_free_compression_methods();
+ #ifdef HAVE_ERR_REMOVE_THREAD_STATE
+ ERR_remove_thread_state(NULL);
+ #else
+--
+cgit v1.1-32-gdbae
+