From 9f8db9cc67fb86eeb2b645ce7f8aa748e99241a9 Mon Sep 17 00:00:00 2001 From: Ed Maste Date: Tue, 10 Mar 2026 09:53:46 -0400 Subject: compat/linux: Avoid waitid() kernel stack disclosure Reported by: Adam Crosser, Praetorian Reviewed by: philip Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D55812 (cherry picked from commit 9a9f93bcf1aa0059d759b2f3ea6faeb2760a11bd) --- sys/compat/linux/linux_misc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sys/compat/linux/linux_misc.c b/sys/compat/linux/linux_misc.c index 69fb9935a9ae..937b010c8435 100644 --- a/sys/compat/linux/linux_misc.c +++ b/sys/compat/linux/linux_misc.c @@ -750,6 +750,7 @@ linux_common_wait(struct thread *td, idtype_t idtype, int id, int *statusp, error = linux_copyout_rusage(&wru.wru_self, rup); if (error == 0 && infop != NULL && td->td_retval[0] != 0) { sig = bsd_to_linux_signal(siginfo.si_signo); + memset(&lsi, 0, sizeof(lsi)); siginfo_to_lsiginfo(&siginfo, &lsi, sig); error = copyout(&lsi, infop, sizeof(lsi)); } -- cgit v1.3