• Alexander Potapenko's avatar
    mm: kmsan: maintain KMSAN metadata for page operations · b073d7f8
    Alexander Potapenko authored
    Insert KMSAN hooks that make the necessary bookkeeping changes:
     - poison page shadow and origins in alloc_pages()/free_page();
     - clear page shadow and origins in clear_page(), copy_user_highpage();
     - copy page metadata in copy_highpage(), wp_page_copy();
     - handle vmap()/vunmap()/iounmap();
    
    Link: https://lkml.kernel.org/r/20220915150417.722975-15-glider@google.comSigned-off-by: default avatarAlexander Potapenko <glider@google.com>
    Cc: Alexander Viro <viro@zeniv.linux.org.uk>
    Cc: Alexei Starovoitov <ast@kernel.org>
    Cc: Andrey Konovalov <andreyknvl@gmail.com>
    Cc: Andrey Konovalov <andreyknvl@google.com>
    Cc: Andy Lutomirski <luto@kernel.org>
    Cc: Arnd Bergmann <arnd@arndb.de>
    Cc: Borislav Petkov <bp@alien8.de>
    Cc: Christoph Hellwig <hch@lst.de>
    Cc: Christoph Lameter <cl@linux.com>
    Cc: David Rientjes <rientjes@google.com>
    Cc: Dmitry Vyukov <dvyukov@google.com>
    Cc: Eric Biggers <ebiggers@google.com>
    Cc: Eric Biggers <ebiggers@kernel.org>
    Cc: Eric Dumazet <edumazet@google.com>
    Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Cc: Herbert Xu <herbert@gondor.apana.org.au>
    Cc: Ilya Leoshkevich <iii@linux.ibm.com>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Jens Axboe <axboe@kernel.dk>
    Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
    Cc: Kees Cook <keescook@chromium.org>
    Cc: Marco Elver <elver@google.com>
    Cc: Mark Rutland <mark.rutland@arm.com>
    Cc: Matthew Wilcox <willy@infradead.org>
    Cc: Michael S. Tsirkin <mst@redhat.com>
    Cc: Pekka Enberg <penberg@kernel.org>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Petr Mladek <pmladek@suse.com>
    Cc: Stephen Rothwell <sfr@canb.auug.org.au>
    Cc: Steven Rostedt <rostedt@goodmis.org>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: Vasily Gorbik <gor@linux.ibm.com>
    Cc: Vegard Nossum <vegard.nossum@oracle.com>
    Cc: Vlastimil Babka <vbabka@suse.cz>
    Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
    b073d7f8
internal.h 26.9 KB