Date: Tue, 4 Jul 2023 12:41:30 GMT From: Ka Ho Ng <khng@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 4c20e26e26ec - stable/13 - syscalls: fix modspecific_t stack content leak Message-ID: <202307041241.364CfUpx048053@gitrepo.freebsd.org>
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The branch stable/13 has been updated by khng: URL: https://cgit.FreeBSD.org/src/commit/?id=4c20e26e26ec33664475900de028c9e77bffd8bf commit 4c20e26e26ec33664475900de028c9e77bffd8bf 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 12:41:07 +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 b4fec879708a..fa1df225ee3b 100644 --- a/sys/kern/kern_syscalls.c +++ b/sys/kern/kern_syscalls.c @@ -173,7 +173,7 @@ 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) {
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