git: 2d148ce84d29 - stable/12 - syscalls: fix modspecific_t stack content leak
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Date: Tue, 04 Jul 2023 12:53:08 UTC
The branch stable/12 has been updated by khng:
URL: https://cgit.FreeBSD.org/src/commit/?id=2d148ce84d29321f5f1a0ccb405c5238f5859005
commit 2d148ce84d29321f5f1a0ccb405c5238f5859005
Author: Ka Ho Ng <khng@FreeBSD.org>
AuthorDate: 2023-06-27 19:33:46 +0000
Commit: Ka Ho Ng <khng@FreeBSD.org>
CommitDate: 2023-07-04 12:52:50 +0000
syscalls: fix modspecific_t stack content leak
Zero-initialize the whole modspecific_t so that there would
not be kernel stack content leak in the unused part.
Sponsored by: Juniper Networks, Inc.
Differential Revision: https://reviews.freebsd.org/D40815
(cherry picked from commit 2cab2d43b83bddd44ecc1f267afb5e2725975ac7)
---
sys/kern/kern_syscalls.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sys/kern/kern_syscalls.c b/sys/kern/kern_syscalls.c
index 035e169bbe0e..0af8e18890c8 100644
--- a/sys/kern/kern_syscalls.c
+++ b/sys/kern/kern_syscalls.c
@@ -164,7 +164,7 @@ kern_syscall_module_handler(struct sysent *sysents, struct module *mod,
int what, void *arg)
{
struct syscall_module_data *data = arg;
- modspecific_t ms;
+ modspecific_t ms = { 0 };
int error;
switch (what) {