diff options
Diffstat (limited to 'meta/recipes-core/glibc/glibc/0001-CVE-2021-38604.patch')
| -rw-r--r-- | meta/recipes-core/glibc/glibc/0001-CVE-2021-38604.patch | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/meta/recipes-core/glibc/glibc/0001-CVE-2021-38604.patch b/meta/recipes-core/glibc/glibc/0001-CVE-2021-38604.patch deleted file mode 100644 index 8a52ac957c..0000000000 --- a/meta/recipes-core/glibc/glibc/0001-CVE-2021-38604.patch +++ /dev/null @@ -1,40 +0,0 @@ -From b805aebd42364fe696e417808a700fdb9800c9e8 Mon Sep 17 00:00:00 2001 -From: Nikita Popov <npv1310@gmail.com> -Date: Mon, 9 Aug 2021 20:17:34 +0530 -Subject: [PATCH] librt: fix NULL pointer dereference (bug 28213) - -Helper thread frees copied attribute on NOTIFY_REMOVED message -received from the OS kernel. Unfortunately, it fails to check whether -copied attribute actually exists (data.attr != NULL). This worked -earlier because free() checks passed pointer before actually -attempting to release corresponding memory. But -__pthread_attr_destroy assumes pointer is not NULL. - -So passing NULL pointer to __pthread_attr_destroy will result in -segmentation fault. This scenario is possible if -notification->sigev_notify_attributes == NULL (which means default -thread attributes should be used). - -Upstream-Status: Backport [https://sourceware.org/git/?p=glibc.git;a=commit;h=b805aebd42364fe696e417808a700fdb9800c9e8] -CVE: CVE-2021-38604 - -Signed-off-by: Nikita Popov <npv1310@gmail.com> -Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org> -Signed-off-by: Vinay Kumar <vinay.m.engg@gmail.com> ---- - sysdeps/unix/sysv/linux/mq_notify.c | 2 +- - 1 file changed, 1 insertion(+), 1 deletion(-) - -diff --git a/sysdeps/unix/sysv/linux/mq_notify.c b/sysdeps/unix/sysv/linux/mq_notify.c -index 6f46d29d1d..1714e1cc5f 100644 ---- a/sysdeps/unix/sysv/linux/mq_notify.c -+++ b/sysdeps/unix/sysv/linux/mq_notify.c -@@ -132,7 +132,7 @@ helper_thread (void *arg) - to wait until it is done with it. */ - (void) __pthread_barrier_wait (¬ify_barrier); - } -- else if (data.raw[NOTIFY_COOKIE_LEN - 1] == NOTIFY_REMOVED) -+ else if (data.raw[NOTIFY_COOKIE_LEN - 1] == NOTIFY_REMOVED && data.attr != NULL) - { - /* The only state we keep is the copy of the thread attributes. */ - pthread_attr_destroy (data.attr); |