diff options
Diffstat (limited to 'meta/recipes-support/curl/curl/CVE-2023-28320-fol1.patch')
| -rw-r--r-- | meta/recipes-support/curl/curl/CVE-2023-28320-fol1.patch | 197 |
1 files changed, 197 insertions, 0 deletions
diff --git a/meta/recipes-support/curl/curl/CVE-2023-28320-fol1.patch b/meta/recipes-support/curl/curl/CVE-2023-28320-fol1.patch new file mode 100644 index 0000000000..eaa6fdc327 --- /dev/null +++ b/meta/recipes-support/curl/curl/CVE-2023-28320-fol1.patch @@ -0,0 +1,197 @@ +From f446258f0269a62289cca0210157cb8558d0edc3 Mon Sep 17 00:00:00 2001 +From: Daniel Stenberg <daniel@haxx.se> +Date: Tue, 16 May 2023 23:40:42 +0200 +Subject: [PATCH] hostip: include easy_lock.h before using + GLOBAL_INIT_IS_THREADSAFE + +Since that header file is the only place that define can be defined. + +Reported-by: Marc Deslauriers + +Follow-up to 13718030ad4b3209 + +Closes #11121 + +Upstream-Status: Backport [https://github.com/curl/curl/commit/f446258f0269a62289cca0210157cb8558d0edc3] +CVE: CVE-2023-28320 +Signed-off-by: Vivek Kumbhar <vkumbhar@mvista.com> +--- + lib/easy_lock.h | 109 ++++++++++++++++++++++++++++++++++++++++++++++++ + lib/hostip.c | 10 ++--- + lib/hostip.h | 9 ---- + 3 files changed, 113 insertions(+), 15 deletions(-) + create mode 100644 lib/easy_lock.h + +diff --git a/lib/easy_lock.h b/lib/easy_lock.h +new file mode 100644 +index 0000000..6399a39 +--- /dev/null ++++ b/lib/easy_lock.h +@@ -0,0 +1,109 @@ ++#ifndef HEADER_CURL_EASY_LOCK_H ++#define HEADER_CURL_EASY_LOCK_H ++/*************************************************************************** ++ * _ _ ____ _ ++ * Project ___| | | | _ \| | ++ * / __| | | | |_) | | ++ * | (__| |_| | _ <| |___ ++ * \___|\___/|_| \_\_____| ++ * ++ * Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al. ++ * ++ * This software is licensed as described in the file COPYING, which ++ * you should have received as part of this distribution. The terms ++ * are also available at https://curl.se/docs/copyright.html. ++ * ++ * You may opt to use, copy, modify, merge, publish, distribute and/or sell ++ * copies of the Software, and permit persons to whom the Software is ++ * furnished to do so, under the terms of the COPYING file. ++ * ++ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY ++ * KIND, either express or implied. ++ * ++ * SPDX-License-Identifier: curl ++ * ++ ***************************************************************************/ ++ ++#include "curl_setup.h" ++ ++#define GLOBAL_INIT_IS_THREADSAFE ++ ++#if defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x600 ++ ++#ifdef __MINGW32__ ++#ifndef __MINGW64_VERSION_MAJOR ++#if (__MINGW32_MAJOR_VERSION < 5) || \ ++ (__MINGW32_MAJOR_VERSION == 5 && __MINGW32_MINOR_VERSION == 0) ++/* mingw >= 5.0.1 defines SRWLOCK, and slightly different from MS define */ ++typedef PVOID SRWLOCK, *PSRWLOCK; ++#endif ++#endif ++#ifndef SRWLOCK_INIT ++#define SRWLOCK_INIT NULL ++#endif ++#endif /* __MINGW32__ */ ++ ++#define curl_simple_lock SRWLOCK ++#define CURL_SIMPLE_LOCK_INIT SRWLOCK_INIT ++ ++#define curl_simple_lock_lock(m) AcquireSRWLockExclusive(m) ++#define curl_simple_lock_unlock(m) ReleaseSRWLockExclusive(m) ++ ++#elif defined(HAVE_ATOMIC) && defined(HAVE_STDATOMIC_H) ++#include <stdatomic.h> ++#if defined(HAVE_SCHED_YIELD) ++#include <sched.h> ++#endif ++ ++#define curl_simple_lock atomic_int ++#define CURL_SIMPLE_LOCK_INIT 0 ++ ++/* a clang-thing */ ++#ifndef __has_builtin ++#define __has_builtin(x) 0 ++#endif ++ ++#ifndef __INTEL_COMPILER ++/* The Intel compiler tries to look like GCC *and* clang *and* lies in its ++ __has_builtin() function, so override it. */ ++ ++/* if GCC on i386/x86_64 or if the built-in is present */ ++#if ( (defined(__GNUC__) && !defined(__clang__)) && \ ++ (defined(__i386__) || defined(__x86_64__))) || \ ++ __has_builtin(__builtin_ia32_pause) ++#define HAVE_BUILTIN_IA32_PAUSE ++#endif ++ ++#endif ++ ++static inline void curl_simple_lock_lock(curl_simple_lock *lock) ++{ ++ for(;;) { ++ if(!atomic_exchange_explicit(lock, true, memory_order_acquire)) ++ break; ++ /* Reduce cache coherency traffic */ ++ while(atomic_load_explicit(lock, memory_order_relaxed)) { ++ /* Reduce load (not mandatory) */ ++#ifdef HAVE_BUILTIN_IA32_PAUSE ++ __builtin_ia32_pause(); ++#elif defined(__aarch64__) ++ __asm__ volatile("yield" ::: "memory"); ++#elif defined(HAVE_SCHED_YIELD) ++ sched_yield(); ++#endif ++ } ++ } ++} ++ ++static inline void curl_simple_lock_unlock(curl_simple_lock *lock) ++{ ++ atomic_store_explicit(lock, false, memory_order_release); ++} ++ ++#else ++ ++#undef GLOBAL_INIT_IS_THREADSAFE ++ ++#endif ++ ++#endif /* HEADER_CURL_EASY_LOCK_H */ +diff --git a/lib/hostip.c b/lib/hostip.c +index 5231a74..d5bf881 100644 +--- a/lib/hostip.c ++++ b/lib/hostip.c +@@ -68,6 +68,8 @@ + #include "curl_memory.h" + #include "memdebug.h" + ++#include "easy_lock.h" ++ + #if defined(CURLRES_SYNCH) && \ + defined(HAVE_ALARM) && \ + defined(SIGALRM) && \ +@@ -77,10 +79,6 @@ + #define USE_ALARM_TIMEOUT + #endif + +-#ifdef USE_ALARM_TIMEOUT +-#include "easy_lock.h" +-#endif +- + #define MAX_HOSTCACHE_LEN (255 + 7) /* max FQDN + colon + port number + zero */ + + /* +@@ -259,8 +257,8 @@ void Curl_hostcache_prune(struct Curl_easy *data) + /* Beware this is a global and unique instance. This is used to store the + return address that we can jump back to from inside a signal handler. This + is not thread-safe stuff. */ +-sigjmp_buf curl_jmpenv; +-curl_simple_lock curl_jmpenv_lock; ++static sigjmp_buf curl_jmpenv; ++static curl_simple_lock curl_jmpenv_lock; + #endif + + /* lookup address, returns entry if found and not stale */ +diff --git a/lib/hostip.h b/lib/hostip.h +index baf1e58..d7f73d9 100644 +--- a/lib/hostip.h ++++ b/lib/hostip.h +@@ -196,15 +196,6 @@ Curl_cache_addr(struct Curl_easy *data, Curl_addrinfo *addr, + #define CURL_INADDR_NONE INADDR_NONE + #endif + +-#ifdef HAVE_SIGSETJMP +-/* Forward-declaration of variable defined in hostip.c. Beware this +- * is a global and unique instance. This is used to store the return +- * address that we can jump back to from inside a signal handler. +- * This is not thread-safe stuff. +- */ +-extern sigjmp_buf curl_jmpenv; +-#endif +- + /* + * Function provided by the resolver backend to set DNS servers to use. + */ +-- +2.25.1 + |