Change Details

If userpath is not SHM_ANON, then copy it in early so ktrace(2) can record it. Without this change, ktrace(2) will attempt to copyin a userspace string and trigger a page fault. Fixes: 0cd9cde767c3 Approved by: markj (mentor) MFC after: 1 month Sponsored by: The FreeBSD Foundation

If userpath is not SHM_ANON, then copy it in early so ktrace(2) can record it. Without this change, ktrace(2) will attempt to strcpy a userspace string and trigger a page fault. Reported by: syzbot+490b9c2a89f53b1b9779@syzkaller.appspotmail.com Fixes: 0cd9cde767c3 Approved by: markj (mentor) MFC after: 1 month Sponsored by: The FreeBSD Foundation

If userpath is not SHM_ANON, then copy it in early so ktrace(2) can record it. Without this change, ktrace(2) will attempt to copyin astrcpy a userspace string and trigger a page fault. Reported by: syzbot+490b9c2a89f53b1b9779@syzkaller.appspotmail.com Fixes: 0cd9cde767c3 Approved by: markj (mentor) MFC after: 1 month Sponsored by: The FreeBSD Foundation