7.8
High
CVE-2022-3910 Use After Free vulnerability in Linux Kernel allows Privilege Escalation
Description
Use After Free vulnerability in Linux Kernel allows Privilege Escalation. An improper Update of Reference Count in io_uring leads to Use-After-Free and Local Privilege Escalation. When io_msg_ring was invoked with a fixed file, it called io_fput_file() which improperly decreased its reference count (leading to Use-After-Free and Local Privilege Escalation). Fixed files are permanently registered to the ring, and should not be put separately. We recommend upgrading past commit https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679 https://github.com/torvalds/linux/commit/fc7222c3a9f56271fba02aabbfbae999042f1679
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Kernel 5.18 | 5.18.0 → 5.19.10 | No fix stated |
References
- github.com github.com
- kernel.dance kernel.dance
Timeline
- Published
- Last modified
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