diff options
| author | Lin Ma <[email protected]> | 2023-07-27 20:57:48 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <[email protected]> | 2023-08-10 15:24:28 -0400 |
| commit | 79c8651587504ba263d2fd67fd4406240fb21f69 (patch) | |
| tree | c9342f05c308d1cd2a8c1cf58bb2219769ad2736 /tools/perf/scripts/python/event_analyzing_sample.py | |
| parent | 13f3efaca024e16ccfab0e8b2cf29d66489d8d54 (diff) | |
vdpa: Add features 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 features attr to avoid
such bugs.
Fixes: 90fea5a800c3 ("vdpa: device feature provisioning")
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/event_analyzing_sample.py')
0 files changed, 0 insertions, 0 deletions