medium5.5
CVE-2021-47514
In the Linux kernel, the following vulnerability has been resolved: devlink: fix netns refcount leak in devlink_nl_cmd_reload() While preparing my patch series…
Impact
In the Linux kernel, the following vulnerability has been resolved: devlink: fix netns refcount leak in devlink_nl_cmd_reload() While preparing my patch series adding netns refcount tracking, I spotted bugs in devlink_nl_cmd_reload() Some error paths forgot to release a refcount on a netns. To fix this, we can reduce the scope of get_net()/put_net() section around the call to devlink_reload().
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 5.10 before 5.10.85 from 5.11 before 5.15.8 Version 5.16 |
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/4b7e90672af8e0c78205db006f1b0a20ebd07f5f
- https://git.kernel.org/stable/c/4dbb0dad8e63fcd0b5a117c2861d2abe7ff5f186
- https://git.kernel.org/stable/c/fe30b70ca84da9c4aca85c03ad86e7a9b89c5ded
- https://git.kernel.org/stable/c/4b7e90672af8e0c78205db006f1b0a20ebd07f5f
- https://git.kernel.org/stable/c/4dbb0dad8e63fcd0b5a117c2861d2abe7ff5f186
- https://git.kernel.org/stable/c/fe30b70ca84da9c4aca85c03ad86e7a9b89c5ded