!73 [sync] PR-71: FIX CVE-2024-2314

From: @openeuler-sync-bot 
Reviewed-by: @bitcoffee 
Signed-off-by: @bitcoffee

backport-CVE-2024-2314-clang-check-header-owners.patch

@@ -0,0 +1,65 @@
+From 008ea09e891194c072f2a9305a3c872a241dc342 Mon Sep 17 00:00:00 2001
+From: Brendan Gregg <brendan@intel.com>
+Date: Thu, 7 Mar 2024 05:27:14 +1100
+Subject: [PATCH] clang: check header ownership (#4928)
+
+Example testing with a brendan-owned /tmp/kheaders file (note the "ERROR:" message):
+
+~/bcc/build$ sudo /usr/share/bcc/tools/biosnoop
+ERROR: header file ownership unexpected: /tmp/kheaders-5.15.47-internal
+<built-in>:1:10: fatal error: './include/linux/kconfig.h' file not found
+#include "./include/linux/kconfig.h"
+         ^~~~~~~~~~~~~~~~~~~~~~~~~~~
+1 error generated.
+Traceback (most recent call last):
+  File "/usr/share/bcc/tools/biosnoop", line 335, in <module>
+    b = BPF(text=bpf_text)
+  File "/usr/lib/python3/dist-packages/bcc-0.1.5+6cd27218-py3.10.egg/bcc/__init__.py", line 479, in __init__
+Exception: Failed to compile BPF module <text>
+~/bcc/build$ ls -lhd /tmp/kheaders-5.15.47-internal
+drwxrwxr-x 2 brendan dev 4.0K Mar  6 02:50 /tmp/kheaders-5.15.47-internal
+
+No error when chown'd back to root.
+---
+ src/cc/frontends/clang/kbuild_helper.cc | 15 +++++++++++----
+ 1 file changed, 11 insertions(+), 4 deletions(-)
+
+diff --git a/src/cc/frontends/clang/kbuild_helper.cc b/src/cc/frontends/clang/kbuild_helper.cc
+index 50e2da9a7bc..d4b9d3e61c7 100644
+--- a/src/cc/frontends/clang/kbuild_helper.cc
++++ b/src/cc/frontends/clang/kbuild_helper.cc
+@@ -140,15 +140,22 @@ int KBuildHelper::get_flags(const char *uname_machine, vector<string> *cflags) {
+   return 0;
+ }
+ 
+-static inline int file_exists(const char *f)
++static inline int file_exists_and_ownedby(const char *f, uid_t uid)
+ {
+   struct stat buffer;
+-  return (stat(f, &buffer) == 0);
++  int ret;
++  if ((ret = stat(f, &buffer)) == 0) {
++    if (buffer.st_uid != uid) {
++      std::cout << "ERROR: header file ownership unexpected: " << std::string(f) << "\n";
++      return -1;
++    }
++  }
++  return ret;
+ }
+ 
+ static inline int proc_kheaders_exists(void)
+ {
+-  return file_exists(PROC_KHEADERS_PATH);
++  return file_exists_and_ownedby(PROC_KHEADERS_PATH, 0);
+ }
+ 
+ static inline const char *get_tmp_dir() {
+@@ -224,7 +231,7 @@ int get_proc_kheaders(std::string &dirpath)
+            uname_data.release);
+   dirpath = std::string(dirpath_tmp);
+ 
+-  if (file_exists(dirpath_tmp))
++  if (file_exists_and_ownedby(dirpath_tmp, 0))
+     return 0;
+ 
+   // First time so extract it

bcc.spec

@@ -2,7 +2,7 @@
 
 Name:           bcc
 Version:        0.29.1
-Release:        2
+Release:        3
 Summary:        BPF Compiler Collection (BCC)
 License:        ASL 2.0
 URL:            https://github.com/iovisor/bcc
@@ -10,6 +10,7 @@ URL:            https://github.com/iovisor/bcc
 Source0:        %{url}/releases/download/v%{version}/%{name}-src-with-submodule.tar.gz
 
 Patch0001:	backport-Fix-ttysnoop.py-with-newer-kernels-4888.patch
+Patch0002:	backport-CVE-2024-2314-clang-check-header-owners.patch
 
 # Arches will be included as upstream support is added and dependencies are
 # satisfied in the respective arches
@@ -164,6 +165,9 @@ rm -rf %{buildroot}%{_datadir}/%{name}/tools/old/
 
 
 %changelog
+* Tue Dec 03 2024 zhangmingyi <zhangmingyi5@huawei.com> - 0.29.1-3
+- Fix CVE-2024-2314
+
 * Thu May 09 2024 jinzhiguang <jinzhiguang@kylinos.cn> - 0.29.1-2
 - backport patch from upstream
   backport-Fix-ttysnoop.py-with-newer-kernels-4888.patch