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| author | Greg Kurz | 2017-02-26 23:43:25 +0100 |
|---|---|---|
| committer | Greg Kurz | 2017-02-28 11:21:15 +0100 |
| commit | 31e51d1c15b35dc98b88a301812914b70a2b55dc (patch) | |
| tree | f1bdaeddcf8ca308a79fb74d409e454b5ea5e3b8 /scripts/modules | |
| parent | 9pfs: local: utimensat: don't follow symlinks (diff) | |
| download | qemu-31e51d1c15b35dc98b88a301812914b70a2b55dc.tar.gz qemu-31e51d1c15b35dc98b88a301812914b70a2b55dc.tar.xz qemu-31e51d1c15b35dc98b88a301812914b70a2b55dc.zip | |
9pfs: local: statfs: don't follow symlinks
The local_statfs() callback is vulnerable to symlink attacks because it
calls statfs() which follows symbolic links in all path elements.
This patch converts local_statfs() to rely on open_nofollow() and fstatfs()
instead.
This partly fixes CVE-2016-9602.
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'scripts/modules')
0 files changed, 0 insertions, 0 deletions