CVE-2022-50274
High
Description
In the Linux kernel, the following vulnerability has been resolved: media: dvbdev: adopts refcnt to avoid UAF dvb_unregister_device() is known that prone to use-after-free. That is, the cleanup from dvb_unregister_device() releases the dvb_device even if there are pointers stored in file->private_data still refer to it. This patch adds a reference counter into struct dvb_device and delays its deallocation until no pointer refers to the object.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedSep 15, 2025
First seenSep 15, 2025
How to fix
Update
- linux linux_kernel4.14.303, 4.19.270, 5.4.229, 5.10.163, 5.15.86, 6.0.16, 6.1.2 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | v < 4.14.303, 4.15 ≤ v < 4.19.270, 4.20 ≤ v < 5.4.229, 5.5 ≤ v < 5.10.163, 5.11 ≤ v < 5.15.86, 5.16 ≤ v < 6.0.16, 6.1 ≤ v < 6.1.2 | 4.14.303, 4.19.270, 5.4.229, 5.10.163, 5.15.86, 6.0.16, 6.1.2 |
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