Date: Fri, 12 Nov 2021 00:46:33 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 259380] linux(4): linux_recvfrom(2) fails: linux_recvfrom -1 errno -22 Invalid argument Message-ID: <bug-259380-227-BBLNLd3LnA@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-259380-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=259380 --- Comment #11 from Jason Mader <jasonmader@gmail.com> --- (In reply to Jason Mader from comment #10) When linux_recvfrom() calls kern_recvit() the value of msg.msg_namelen is 28, and after the call it is 0. kern_recvit() source didn't change, but bsd_to_linux_sockaddr() did. Prior to FreeBSD 12.2, bsd_to_linux_sockaddr() didn't check the value of msg.msg_namelen (as len). Now it does, if (len < 2 || len > UCHAR_MAX) return (EINVAL); I am currently working around this with, --- linux_socket.c +++ linux_socket.c @@ -926,10 +926,10 @@ goto out; if (PTRIN(args->from) != NULL) { - error = bsd_to_linux_sockaddr(sa, &lsa, msg.msg_namelen); + error = bsd_to_linux_sockaddr(sa, &lsa, fromlen); if (error == 0) error = copyout(lsa, PTRIN(args->from), - msg.msg_namelen); + fromlen); free(lsa, M_SONAME); } -- You are receiving this mail because: You are the assignee for the bug.help
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