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| author | Dan Rosenberg <drosenberg@vsecurity.com> | 2011-07-25 17:11:53 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-08-08 10:23:13 -0700 |
| commit | b259a3c0e4348587e06fbabd828fb878457c5dad (patch) | |
| tree | fc18c4daec04bd2308b925ab9650c33aa3dd89f1 /fs | |
| parent | 78a4ddf99d27b83ca7b9720338b1030206db4a0e (diff) | |
| download | lwn-b259a3c0e4348587e06fbabd828fb878457c5dad.tar.gz lwn-b259a3c0e4348587e06fbabd828fb878457c5dad.zip | |
xtensa: prevent arbitrary read in ptrace
commit 0d0138ebe24b94065580bd2601f8bb7eb6152f56 upstream.
Prevent an arbitrary kernel read. Check the user pointer with access_ok()
before copying data in.
[akpm@linux-foundation.org: s/EIO/EFAULT/]
Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com>
Cc: Christian Zankel <chris@zankel.net>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions