diff options
author | J. Bruce Fields <bfields@redhat.com> | 2017-04-21 15:26:30 -0400 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-05-08 07:46:02 +0200 |
commit | da1ce38aaac7f08d319b4b76130aa4fd27c4489f (patch) | |
tree | 26946370f834a2cc6f05c764f5c8e974354298e4 /security/smack | |
parent | 35e13333c217f0255a1e657ce075f0f72bc6383c (diff) |
nfsd: stricter decoding of write-like NFSv2/v3 ops
commit 13bf9fbff0e5e099e2b6f003a0ab8ae145436309 upstream.
The NFSv2/v3 code does not systematically check whether we decode past
the end of the buffer. This generally appears to be harmless, but there
are a few places where we do arithmetic on the pointers involved and
don't account for the possibility that a length could be negative. Add
checks to catch these.
Reported-by: Tuomas Haanpää <thaan@synopsys.com>
Reported-by: Ari Kauppi <ari@synopsys.com>
Reviewed-by: NeilBrown <neilb@suse.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'security/smack')
0 files changed, 0 insertions, 0 deletions