The branch main has been updated by markj: URL: https://cgit.FreeBSD.org/src/commit/?id=1babcad6bc4093664a10c7ab98b9ebd2d64bcaaf
commit 1babcad6bc4093664a10c7ab98b9ebd2d64bcaaf Author: Mark Johnston <[email protected]> AuthorDate: 2022-03-23 16:52:44 +0000 Commit: Mark Johnston <[email protected]> CommitDate: 2022-03-23 16:53:49 +0000 elf: Avoid dumping uninitialized bytes in PRSTATUS core dump notes elf_prstatus_t contains pad space. Reported by: KMSAN MFC after: 1 week Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D34606 --- sys/kern/imgact_elf.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sys/kern/imgact_elf.c b/sys/kern/imgact_elf.c index 0f60835ce5e2..91c967c0c8de 100644 --- a/sys/kern/imgact_elf.c +++ b/sys/kern/imgact_elf.c @@ -2232,6 +2232,7 @@ __elfN(get_prstatus)(struct regset *rs, struct thread *td, void *buf, KASSERT(*sizep == sizeof(*status), ("%s: invalid size", __func__)); status = buf; + memset(status, 0, *sizep); status->pr_version = PRSTATUS_VERSION; status->pr_statussz = sizeof(elf_prstatus_t); status->pr_gregsetsz = sizeof(elf_gregset_t);
