CVE-2026-74433
Critical
Description
In the Linux kernel, the following vulnerability has been resolved: rxrpc: Fix UAF in rxgk_issue_challenge() Fix rxgk_issue_challenge() to free the page containing the challenge content after invoking the tracepoint as the whdr passed to the tracepoint points into the page just freed.
SeverityCritical
CVSS9.8
Exploit probability—
Product
Linux
PublishedAug 15, 2026
First seenAug 15, 2026
How to fix
Update
- Linux Linux844b8525ce503405c462ad67f750bec648720397, 83bb0ed050e2ad9453d8ef50e4d6e624eac6eed8, 107a4cb0d47e735830f852d83970d5c81f8e1e08 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a ≤ v < 844b8525ce503405c462ad67f750bec648720397, 9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a ≤ v < 83bb0ed050e2ad9453d8ef50e4d6e624eac6eed8, 9d1d2b59341f58126a69b51f9f5f8ccb9f12e54a ≤ v < 107a4cb0d47e735830f852d83970d5c81f8e1e08, 6.16 | 844b8525ce503405c462ad67f750bec648720397, 83bb0ed050e2ad9453d8ef50e4d6e624eac6eed8, 107a4cb0d47e735830f852d83970d5c81f8e1e08 |
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