linux: In the Linux kernel, the following vulnerability has been resolved: btrfs: fix extent map use-after-free when handli...
CVE-2022-50300 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-50300, released September 15, 2025. It is not reported as exploited. Patch Radar priority: High.
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
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| linux · Debian 12.15 (bookworm) | 6.1.4-1 | DEBIAN-CVE-2022-50300 | Sep 15, 2025 |
| linux · Debian 13.5 (trixie) | 6.1.4-1 | DEBIAN-CVE-2022-50300 | Sep 15, 2025 |
| linux · Debian 14 | 6.1.4-1 | DEBIAN-CVE-2022-50300 | Sep 15, 2025 |
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