The commit is pushed to "branch-rh8-4.18.0-193.6.3.vz8.4.x-ovz" and will appear
at https://src.openvz.org/scm/ovz/vzkernel.git
after rh8-4.18.0-193.6.3.vz8.4.9
------>
commit 7d9c95d8798f29365b9a317c22d58e2749186337
Author: Alexander Potapenko <[email protected]>
Date: Wed Sep 30 17:25:37 2020 +0300
ms/fs/binfmt_elf.c: allocate initialized memory in fill_thread_core_info()
KMSAN reported uninitialized data being written to disk when dumping
core. As a result, several kilobytes of kmalloc memory may be written
to the core file and then read by a non-privileged user.
Reported-by: sam <[email protected]>
Signed-off-by: Alexander Potapenko <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Acked-by: Kees Cook <[email protected]>
Cc: Al Viro <[email protected]>
Cc: Alexey Dobriyan <[email protected]>
Cc: <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Link: https://github.com/google/kmsan/issues/76
Signed-off-by: Linus Torvalds <[email protected]>
Commit 1d605416fb7175e1adf094251466caa52093b413 in the mainline
kernel. Re-diffed for vz8.4.x, context change only.
CVE-2020-10732
https://jira.sw.ru/browse/PSBM-120643
Signed-off-by: Evgenii Shatokhin <[email protected]>
---
fs/binfmt_elf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index dd3e56edd2f3..c9fdad31fb37 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1766,7 +1766,7 @@ static int fill_thread_core_info(struct
elf_thread_core_info *t,
(!regset->active || regset->active(t->task, regset))) {
int ret;
size_t size = regset_size(t->task, regset);
- void *data = kmalloc(size, GFP_KERNEL);
+ void *data = kzalloc(size, GFP_KERNEL);
if (unlikely(!data))
return 0;
ret = regset->get(t->task, regset,
_______________________________________________
Devel mailing list
[email protected]
https://lists.openvz.org/mailman/listinfo/devel
