diff options
| author | Lin Ma <[email protected]> | 2023-07-27 20:57:52 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <[email protected]> | 2023-08-10 15:24:28 -0400 |
| commit | 5d6ba607d6cb5c58a4ddf33381e18c83dbb4098f (patch) | |
| tree | ef03a12dcc12dfece62d64bdbd63bfd8b5f3c010 /tools/perf/scripts/python/mem-phys-addr.py | |
| parent | b3003e1b54e057f5f3124e437b80c3bef26ed3fe (diff) | |
vdpa: Add max vqp attr to vdpa_nl_policy for nlattr length check
The vdpa_nl_policy structure is used to validate the nlattr when parsing
the incoming nlmsg. It will ensure the attribute being described produces
a valid nlattr pointer in info->attrs before entering into each handler
in vdpa_nl_ops.
That is to say, the missing part in vdpa_nl_policy may lead to illegal
nlattr after parsing, which could lead to OOB read just like CVE-2023-3773.
This patch adds the missing nla_policy for vdpa max vqp attr to avoid
such bugs.
Fixes: ad69dd0bf26b ("vdpa: Introduce query of device config layout")
Signed-off-by: Lin Ma <[email protected]>
Cc: [email protected]
Message-Id: <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/mem-phys-addr.py')
0 files changed, 0 insertions, 0 deletions