high7.8
CVE-2022-50300
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix extent map use-after-free when handling missing device in read_one_chunk Store t…
Impact
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix extent map use-after-free when handling missing device in read_one_chunk Store the error code before freeing the extent_map. Though it's reference counted structure, in that function it's the first and last allocation so this would lead to a potential use-after-free. The error can happen eg. when chunk is stored on a missing device and the degraded mount option is missing. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=216721
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Linux | Linux Kernel | from 4.15 before 5.15.87 from 5.16 before 6.0.18 from 6.1 before 6.1.4 |
Weakness classification
References
- NVD record
- CVE.org record
- https://git.kernel.org/stable/c/169a4cf46882974d4db6d85eb623ec898e51bbc0
- https://git.kernel.org/stable/c/1742e1c90c3da344f3bb9b1f1309b3f47482756a
- https://git.kernel.org/stable/c/b8e7ed42bc3ca0d0e4191ee394d34962d3624c22
- https://git.kernel.org/stable/c/fce3713197ebba239e1c7e02174ed216ea1ee014