diff options
Diffstat (limited to 'source/l/glibc/patches/CVE-2021-33574_2.patch')
-rw-r--r-- | source/l/glibc/patches/CVE-2021-33574_2.patch | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/source/l/glibc/patches/CVE-2021-33574_2.patch b/source/l/glibc/patches/CVE-2021-33574_2.patch deleted file mode 100644 index 608dbfdc5..000000000 --- a/source/l/glibc/patches/CVE-2021-33574_2.patch +++ /dev/null @@ -1,53 +0,0 @@ -From 217b6dc298156bdb0d6aea9ea93e7e394a5ff091 Mon Sep 17 00:00:00 2001 -From: Florian Weimer <fweimer@redhat.com> -Date: Tue, 1 Jun 2021 17:51:41 +0200 -Subject: [PATCH] Fix use of __pthread_attr_copy in mq_notify (bug 27896) - -__pthread_attr_copy can fail and does not initialize the attribute -structure in that case. - -If __pthread_attr_copy is never called and there is no allocated -attribute, pthread_attr_destroy should not be called, otherwise -there is a null pointer dereference in rt/tst-mqueue6. - -Fixes commit 42d359350510506b87101cf77202fefcbfc790cb -("Use __pthread_attr_copy in mq_notify (bug 27896)"). - -Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org> ---- - sysdeps/unix/sysv/linux/mq_notify.c | 11 +++++++++-- - 1 file changed, 9 insertions(+), 2 deletions(-) - -diff --git a/sysdeps/unix/sysv/linux/mq_notify.c b/sysdeps/unix/sysv/linux/mq_notify.c -index f7ddfe5a6c..6f46d29d1d 100644 ---- a/sysdeps/unix/sysv/linux/mq_notify.c -+++ b/sysdeps/unix/sysv/linux/mq_notify.c -@@ -258,7 +258,14 @@ mq_notify (mqd_t mqdes, const struct sigevent *notification) - if (data.attr == NULL) - return -1; - -- __pthread_attr_copy (data.attr, notification->sigev_notify_attributes); -+ int ret = __pthread_attr_copy (data.attr, -+ notification->sigev_notify_attributes); -+ if (ret != 0) -+ { -+ free (data.attr); -+ __set_errno (ret); -+ return -1; -+ } - } - - /* Construct the new request. */ -@@ -271,7 +278,7 @@ mq_notify (mqd_t mqdes, const struct sigevent *notification) - int retval = INLINE_SYSCALL (mq_notify, 2, mqdes, &se); - - /* If it failed, free the allocated memory. */ -- if (__glibc_unlikely (retval != 0)) -+ if (retval != 0 && data.attr != NULL) - { - pthread_attr_destroy (data.attr); - free (data.attr); --- -2.27.0 - - |