lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Wed, 13 May 2020 16:59:40 -0700 From: Linus Torvalds <torvalds@...ux-foundation.org> To: Masami Hiramatsu <mhiramat@...nel.org> Cc: Daniel Borkmann <daniel@...earbox.net>, Christoph Hellwig <hch@....de>, "the arch/x86 maintainers" <x86@...nel.org>, Alexei Starovoitov <ast@...nel.org>, Andrew Morton <akpm@...ux-foundation.org>, linux-parisc@...r.kernel.org, linux-um <linux-um@...ts.infradead.org>, Netdev <netdev@...r.kernel.org>, bpf@...r.kernel.org, Linux-MM <linux-mm@...ck.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org> Subject: Re: [PATCH 11/18] maccess: remove strncpy_from_unsafe On Wed, May 13, 2020 at 4:21 PM Masami Hiramatsu <mhiramat@...nel.org> wrote: > > > For trace_kprobe.c current order (kernel -> user fallback) is preferred > because it has another function dedicated for user memory. Well, then it should just use the "strict" kernel-only one for the non-user memory. But yes, if there are legacy interfaces, then we might want to say "these continue to work for the legacy case on platforms where we can tell which kind of pointer it is from the bit pattern". But we should likely at least disallow it entirely on platforms where we really can't - or pick one hardcoded choice. On sparc, you really _have_ to specify one or the other. Linus
Powered by blists - more mailing lists