git: 495ee4943cd5 - releng/14.3 - compat32: Zero struct to avoid stack disclosure

From: Mark Johnston <markj_at_FreeBSD.org>
Date: Tue, 30 Jun 2026 17:20:42 UTC
The branch releng/14.3 has been updated by markj:

URL: https://cgit.FreeBSD.org/src/commit/?id=495ee4943cd52a03ac013624e71828447a83149b

commit 495ee4943cd52a03ac013624e71828447a83149b
Author:     Ed Maste <emaste@FreeBSD.org>
AuthorDate: 2026-03-11 15:02:18 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2026-06-30 02:32:02 +0000

    compat32: Zero struct to avoid stack disclosure
    
    Approved by:    so
    Security:       FreeBSD-SA-26:48.compat32
    Security:       CVE-2026-49425
    Reported by:    Adam Crosser, Praetorian
    Reviewed by:    philip
    Sponsored by:   The FreeBSD Foundation
    Differential Revision: https://reviews.freebsd.org/D55811
    
    (cherry picked from commit 097cb4e9f0432c543c704cec712ce1cd3302335c)
    (cherry picked from commit 4551ea3b3f04650cd5300a9eae8994bdb080db91)
    (cherry picked from commit 6a808cd7534802d30010fb0a7f46381ff9f6ef3f)
---
 sys/compat/freebsd32/freebsd32_misc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/compat/freebsd32/freebsd32_misc.c b/sys/compat/freebsd32/freebsd32_misc.c
index 81715ed102b3..03ab5ea0f7c8 100644
--- a/sys/compat/freebsd32/freebsd32_misc.c
+++ b/sys/compat/freebsd32/freebsd32_misc.c
@@ -766,7 +766,7 @@ static int
 freebsd32_kevent_copyout(void *arg, struct kevent *kevp, int count)
 {
 	struct freebsd32_kevent_args *uap;
-	struct kevent32	ks32[KQ_NEVENTS];
+	struct kevent32	ks32[KQ_NEVENTS] = {};
 	int i, error;
 
 	KASSERT(count <= KQ_NEVENTS, ("count (%d) > KQ_NEVENTS", count));