CVE-2022-49074

irqchip/gic-v3: Fix GICR_CTLR.RWP polling

State: Published
Severity: Not scored
Published: Feb 26, 2025
Updated: May 11, 2026
Reserved: Feb 26, 2025

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	021f653791ad17e03f98aaa7fb933816ae16f161 to before c7daf1b4ad809692d5c26f33c02ed8a031066548Affected 021f653791ad17e03f98aaa7fb933816ae16f161 to before 3c07cc242baf83f0bddbbd9d7945d0bee56d8b57Affected 021f653791ad17e03f98aaa7fb933816ae16f161 to before ff24114bb08d8b90edf2aff0a4fd0689523e6c17Affected 021f653791ad17e03f98aaa7fb933816ae16f161 to before 7218a789abb3e033f5f3a85636ca50d9ae7b0fc9Affected 021f653791ad17e03f98aaa7fb933816ae16f161 to before 60e1eb4811f53f5f60c788297d978515e7a2637aAffected 021f653791ad17e03f98aaa7fb933816ae16f161 to before 6fef3e3179e6ed8fecdd004ede541674ffa7749dAffected 021f653791ad17e03f98aaa7fb933816ae16f161 to before 0df6664531a12cdd8fc873f0cac0dcb40243d3e9Affected
LinuxLinux	3.17Affected before 3.17Not affected 4.19.238 through 4.19.Not affected 5.4.189 through 5.4.Not affected 5.10.111 through 5.10.Not affected 5.15.34 through 5.15.Not affected 5.16.20 through 5.16.Not affected 5.17.3 through 5.17.Not affected 5.18 and laterNot affected

Product

Versions

LinuxLinux

021f653791ad17e03f98aaa7fb933816ae16f161 to before c7daf1b4ad809692d5c26f33c02ed8a031066548Affected
021f653791ad17e03f98aaa7fb933816ae16f161 to before 3c07cc242baf83f0bddbbd9d7945d0bee56d8b57Affected
021f653791ad17e03f98aaa7fb933816ae16f161 to before ff24114bb08d8b90edf2aff0a4fd0689523e6c17Affected
021f653791ad17e03f98aaa7fb933816ae16f161 to before 7218a789abb3e033f5f3a85636ca50d9ae7b0fc9Affected
021f653791ad17e03f98aaa7fb933816ae16f161 to before 60e1eb4811f53f5f60c788297d978515e7a2637aAffected
021f653791ad17e03f98aaa7fb933816ae16f161 to before 6fef3e3179e6ed8fecdd004ede541674ffa7749dAffected
021f653791ad17e03f98aaa7fb933816ae16f161 to before 0df6664531a12cdd8fc873f0cac0dcb40243d3e9Affected

LinuxLinux

3.17Affected
before 3.17Not affected
4.19.238 through 4.19.*Not affected
5.4.189 through 5.4.*Not affected
5.10.111 through 5.10.*Not affected
5.15.34 through 5.15.*Not affected
5.16.20 through 5.16.*Not affected
5.17.3 through 5.17.*Not affected
5.18 and laterNot affected

References

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