The branch main has been updated by dchagin: URL: https://cgit.FreeBSD.org/src/commit/?id=c2cc5345b88e98efb85ebc7318b8f92a8455345e
commit c2cc5345b88e98efb85ebc7318b8f92a8455345e Author: Dmitry Chagin <[email protected]> AuthorDate: 2021-08-12 08:56:51 +0000 Commit: Dmitry Chagin <[email protected]> CommitDate: 2021-08-12 08:56:51 +0000 linux(4): Verify that higher 32bits of exit_signal in clone3 are unset. MFC after: 2 weeks --- sys/compat/linux/linux_fork.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sys/compat/linux/linux_fork.c b/sys/compat/linux/linux_fork.c index ba169ff98923..72e753db60d4 100644 --- a/sys/compat/linux/linux_fork.c +++ b/sys/compat/linux/linux_fork.c @@ -412,6 +412,10 @@ linux_clone3_args_valid(struct l_user_clone_args *uca) if (uca->stack != 0 && uca->stack_size == 0) return (EINVAL); + /* Verify that higher 32bits of exit_signal are unset. */ + if ((uca->exit_signal & ~(uint64_t)LINUX_CSIGNAL) != 0) + return (EINVAL); + /* Verify that no unsupported flags are passed along. */ if ((uca->flags & LINUX_CLONE_NEWTIME) != 0) { LINUX_RATELIMIT_MSG("unsupported clone3 option CLONE_NEWTIME"); _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/dev-commits-src-main To unsubscribe, send any mail to "[email protected]"
