CVE-2022-49074
Linux Kernel GIC-V3 IRQChip RWP Polling Logic Flaw
Description
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.
INFO
Published Date :
Feb. 26, 2025, 7 a.m.
Last Modified :
Feb. 26, 2025, 7 a.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
References to Advisories, Solutions, and Tools
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CVE-2022-49074.
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The following table lists the changes that have been made to the
CVE-2022-49074 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 26, 2025
Action Type Old Value New Value Added Description 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. Added Reference https://git.kernel.org/stable/c/0df6664531a12cdd8fc873f0cac0dcb40243d3e9 Added Reference https://git.kernel.org/stable/c/3c07cc242baf83f0bddbbd9d7945d0bee56d8b57 Added Reference https://git.kernel.org/stable/c/60e1eb4811f53f5f60c788297d978515e7a2637a Added Reference https://git.kernel.org/stable/c/6fef3e3179e6ed8fecdd004ede541674ffa7749d Added Reference https://git.kernel.org/stable/c/7218a789abb3e033f5f3a85636ca50d9ae7b0fc9 Added Reference https://git.kernel.org/stable/c/c7daf1b4ad809692d5c26f33c02ed8a031066548 Added Reference https://git.kernel.org/stable/c/ff24114bb08d8b90edf2aff0a4fd0689523e6c17
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-49074 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-49074
weaknesses.