CVE-2022-49074
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.3% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Record status
- Analyzed
Affected
- Linux Kernel < 4.19.238
- Linux Kernel < 5.4.189
- Linux Kernel < 5.10.111
- Linux Kernel < 5.15.34
- Linux Kernel < 5.16.20
- Linux Kernel < 5.17.3
- Linux Kernel 5.18
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2022-49074.md and follow it. Check whether this project is affected by CVE-2022-49074. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/0df6664531a12cdd8fc873f0cac0dcb40243d3e9
- https://git.kernel.org/stable/c/3c07cc242baf83f0bddbbd9d7945d0bee56d8b57
- https://git.kernel.org/stable/c/60e1eb4811f53f5f60c788297d978515e7a2637a
- https://git.kernel.org/stable/c/6fef3e3179e6ed8fecdd004ede541674ffa7749d
- https://git.kernel.org/stable/c/7218a789abb3e033f5f3a85636ca50d9ae7b0fc9
- https://git.kernel.org/stable/c/c7daf1b4ad809692d5c26f33c02ed8a031066548
- https://git.kernel.org/stable/c/ff24114bb08d8b90edf2aff0a4fd0689523e6c17
References
- https://git.kernel.org/stable/c/0df6664531a12cdd8fc873f0cac0dcb40243d3e9
- https://git.kernel.org/stable/c/3c07cc242baf83f0bddbbd9d7945d0bee56d8b57
- https://git.kernel.org/stable/c/60e1eb4811f53f5f60c788297d978515e7a2637a
- https://git.kernel.org/stable/c/6fef3e3179e6ed8fecdd004ede541674ffa7749d
- https://git.kernel.org/stable/c/7218a789abb3e033f5f3a85636ca50d9ae7b0fc9
- https://git.kernel.org/stable/c/c7daf1b4ad809692d5c26f33c02ed8a031066548
- https://git.kernel.org/stable/c/ff24114bb08d8b90edf2aff0a4fd0689523e6c17