diff options
| author | Maxime Coquelin <[email protected]> | 2022-08-31 17:49:23 +0200 |
|---|---|---|
| committer | Michael S. Tsirkin <[email protected]> | 2022-09-27 18:32:45 -0400 |
| commit | 46f8a29272e51b6df7393d58fc5cb8967397ef2b (patch) | |
| tree | c0b4ecf355de210b969535f63d017c7dec0fe64e /tools/perf/builtin-script.c | |
| parent | 37fafe6b61e4f15d977982635bb785f4e605f7cd (diff) | |
vduse: prevent uninitialized memory accesses
If the VDUSE application provides a smaller config space
than the driver expects, the driver may use uninitialized
memory from the stack.
This patch prevents it by initializing the buffer passed by
the driver to store the config value.
This fix addresses CVE-2022-2308.
Cc: [email protected] # v5.15+
Fixes: c8a6153b6c59 ("vduse: Introduce VDUSE - vDPA Device in Userspace")
Reviewed-by: Xie Yongji <[email protected]>
Acked-by: Jason Wang <[email protected]>
Signed-off-by: Maxime Coquelin <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
Reviewed-by: Chaitanya Kulkarni <[email protected]>
Diffstat (limited to 'tools/perf/builtin-script.c')
0 files changed, 0 insertions, 0 deletions