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authorRusty Russell <rusty@rustcorp.com.au>2015-05-27 03:29:26 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2015-05-27 18:57:21 +0200
commit83a35114d0e4583e6b0ca39502e68b6a92e2910c (patch)
treef6a10dde40090d72e1dae2911057b3208d959415 /lib/proportions.c
parentMerge branch 'overlayfs-next' of git://git.kernel.org/pub/scm/linux/kernel/gi... (diff)
downloadlinux-83a35114d0e4583e6b0ca39502e68b6a92e2910c.tar.xz
linux-83a35114d0e4583e6b0ca39502e68b6a92e2910c.zip
lguest: fix out-by-one error in address checking.
This bug has been there since day 1; addresses in the top guest physical page weren't considered valid. You could map that page (the check in check_gpte() is correct), but if a guest tried to put a pagetable there we'd check that address manually when walking it, and kill the guest. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/proportions.c')
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