Description
In the Linux kernel, the following vulnerability has been resolved: vdpa: Add queue index 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 queue index attr to avoid such bugs.
Product status
13b00b135665c92065a27c0c39dd97e0f380bd4f (git) before 8ad9bc25cbdcec72e7ca43dd8281decb69ea9a70
13b00b135665c92065a27c0c39dd97e0f380bd4f (git) before ccb533b7070aeeb65c66ea5d590e9c62421dcd61
13b00b135665c92065a27c0c39dd97e0f380bd4f (git) before b3003e1b54e057f5f3124e437b80c3bef26ed3fe
5.19
Any version before 5.19
6.1.47 (semver)
6.4.12 (semver)
6.5 (original_commit_for_fix)
References
git.kernel.org/...c/8ad9bc25cbdcec72e7ca43dd8281decb69ea9a70
git.kernel.org/...c/ccb533b7070aeeb65c66ea5d590e9c62421dcd61
git.kernel.org/...c/b3003e1b54e057f5f3124e437b80c3bef26ed3fe
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