diff options
Diffstat (limited to 'meta/recipes-extended/ltp/ltp/0001-cve-2017-17052-Avoid-unsafe-exits-in-threads.patch')
| -rw-r--r-- | meta/recipes-extended/ltp/ltp/0001-cve-2017-17052-Avoid-unsafe-exits-in-threads.patch | 64 |
1 files changed, 0 insertions, 64 deletions
diff --git a/meta/recipes-extended/ltp/ltp/0001-cve-2017-17052-Avoid-unsafe-exits-in-threads.patch b/meta/recipes-extended/ltp/ltp/0001-cve-2017-17052-Avoid-unsafe-exits-in-threads.patch deleted file mode 100644 index cc40081300..0000000000 --- a/meta/recipes-extended/ltp/ltp/0001-cve-2017-17052-Avoid-unsafe-exits-in-threads.patch +++ /dev/null @@ -1,64 +0,0 @@ -From e3a8502d0a4f8a44ddd02ca4b2efc097133fb9f7 Mon Sep 17 00:00:00 2001 -From: Mathias Fiedler <mathias.fiedler@aox-tech.de> -Date: Fri, 23 Aug 2019 12:46:48 +0200 -Subject: [PATCH] cve-2017-17052: Avoid unsafe exits in threads - -According to manpage exit(3) calling exit is not thread-safe. -And with glibc 2.28 (and probably also with glibc >=2.27) sometimes -child processes created in fork_thread can get stuck on process exit in -glibc's __run_exit_handlers trying to acquire some lock which was in -locked state while the fork was created. This can happen when exit is -called in mmap_thread concurrently to the fork. -While the main process will still return with PASSED some of its -children are left behind. - -Comparing the source code with the original program as described in the -commit 2b7e8665b4ff51c034c55df3cff76518d1a9ee3a of linux kernel >=4.13 -the exits in mmap_thread and fork_thread should not be necessary to -trigger the original bug. - -Therefore those exit calls are removed. The mmap_thread and fork_thread -should still exit when their corresponding main thread in do_test_fork -calls exit_group. The remaining exit in do_test_fork will be called in -the main thread without any concurrent thread in the same process. - -Signed-off-by: Mathias Fiedler <mathias.fiedler@aox-tech.de> -Acked-by: Cyril Hrubis <chrubis@suse.cz> -Acked-by: Jan Stancek <jstancek@redhat.com> - -Upstream-Status: Backport -[https://github.com/linux-test-project/ltp/commit/9f0b452c1af4bcb54da35711eb3fa77334a350b4] - -CVE: CVE-2017-17052 - -Signed-off-by: He Zhe <zhe.he@windriver.com> ---- - testcases/cve/cve-2017-17052.c | 5 ----- - 1 file changed, 5 deletions(-) - -diff --git a/testcases/cve/cve-2017-17052.c b/testcases/cve/cve-2017-17052.c -index d7da7e919..18cd2a6d7 100644 ---- a/testcases/cve/cve-2017-17052.c -+++ b/testcases/cve/cve-2017-17052.c -@@ -58,8 +58,6 @@ static void *mmap_thread(void *arg) - for (;;) { - SAFE_MMAP(NULL, 0x1000000, PROT_READ, - MAP_POPULATE|MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); -- if (*do_exit) -- exit(0); - } - - return arg; -@@ -67,9 +65,6 @@ static void *mmap_thread(void *arg) - - static void *fork_thread(void *arg) - { -- if (*do_exit) -- exit(0); -- - usleep(rand() % 10000); - SAFE_FORK(); - --- -2.17.1 - |