CVE-2022-49074
MEDIUM severity · CVSS 5.5
5.5CVSS MEDIUM
Summary
In the Linux kernel, the following vulnerability has been resolved: irqchip/gic-v3: Fix GICR_CTLR.RWP polling It turns out that our polling of RWP is totally wrong when checking for it in the redistributors, as we test the *distributor* bit index, whereas it is a different bit number in the RDs... Oopsie boo. This is embarassing. Not only because it is wrong, but also because it took *8 years* to notice the blunder... Just fix the damn thing.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/0df6664531a12cdd8fc873f0cac0dcb40243d3e9 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/0df6664531a12cdd8fc873f0cac0dcb40243d3e9Patch
- https://git.kernel.org/stable/c/3c07cc242baf83f0bddbbd9d7945d0bee56d8b57Patch
- https://git.kernel.org/stable/c/60e1eb4811f53f5f60c788297d978515e7a2637aPatch
- https://git.kernel.org/stable/c/6fef3e3179e6ed8fecdd004ede541674ffa7749dPatch
- https://git.kernel.org/stable/c/7218a789abb3e033f5f3a85636ca50d9ae7b0fc9Patch
- https://git.kernel.org/stable/c/c7daf1b4ad809692d5c26f33c02ed8a031066548Patch
- https://git.kernel.org/stable/c/ff24114bb08d8b90edf2aff0a4fd0689523e6c17Patch