The branch main has been updated by markj: URL: https://cgit.FreeBSD.org/src/commit/?id=f08f0ae5247ab31de58bda0817e74ccc1a3a5e95
commit f08f0ae5247ab31de58bda0817e74ccc1a3a5e95 Author: Mark Johnston <[email protected]> AuthorDate: 2021-07-10 00:38:03 +0000 Commit: Mark Johnston <[email protected]> CommitDate: 2021-07-10 00:38:50 +0000 amd64: Mark the trapframe as initialized in trap() Otherwise KASAN may generate false positives if the trapframe was written into a poisoned region of the stack. Reported by: pho Sponsored by: The FreeBSD Foundation --- sys/amd64/amd64/trap.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sys/amd64/amd64/trap.c b/sys/amd64/amd64/trap.c index e67e188bb4fd..a60b17cf554f 100644 --- a/sys/amd64/amd64/trap.c +++ b/sys/amd64/amd64/trap.c @@ -54,6 +54,7 @@ __FBSDID("$FreeBSD$"); #include "opt_kdb.h" #include <sys/param.h> +#include <sys/asan.h> #include <sys/bus.h> #include <sys/systm.h> #include <sys/proc.h> @@ -227,6 +228,8 @@ trap(struct trapframe *frame) p = td->td_proc; dr6 = 0; + kasan_mark(frame, sizeof(*frame), sizeof(*frame), 0); + VM_CNT_INC(v_trap); type = frame->tf_trapno; _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/dev-commits-src-all To unsubscribe, send any mail to "[email protected]"
