CVE-2022-49074

irqchip/gic-v3: Fix GICR_CTLR.RWP polling

MEDIUM

5.5

CVSS Score

Published: February 26, 2025 at 01:54 AM UTC

Updated: June 17, 2026 at 05:17 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.3%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

3.17 ≤ v < 4.19.2383.17 ≤ v < 5.10.1113.17 ≤ v < 5.15.343.17 ≤ v < 5.16.203.17 ≤ v < 5.17.33.17 ≤ v < 5.183.17 ≤ v < 5.4.1894.20 ≤ v < 5.4.1895.11 ≤ v < 5.15.345.16 ≤ v < 5.16.205.17 ≤ v < 5.17.35.5 ≤ v < 5.10.11121f653791ad17e3f98aaa7fb933816ae16f1613.17 5.18 rc1

Vendor states this is fixed in 0df6664531a12cdd8fc873f0cac0dcb40243d3e9 (fixed)

Vendor states this is fixed in 3c07cc242baf83f0bddbbd9d7945d0bee56d8b57 (fixed)

Vendor states this is fixed in 60e1eb4811f53f5f60c788297d978515e7a2637a (fixed)

Vendor states this is fixed in 6fef3e3179e6ed8fecdd004ede541674ffa7749d (fixed)

Vendor states this is fixed in 7218a789abb3e033f5f3a85636ca50d9ae7b0fc9 (fixed)

Vendor states this is fixed in c7daf1b4ad809692d5c26f33c02ed8a031066548 (fixed)

Vendor states this is fixed in ff24114bb08d8b90edf2aff0a4fd0689523e6c17 (fixed)

Vendor states this is fixed in 3.17 (unaffected)

Vendor states this is fixed in 4.19.238 (unaffected)

Vendor states this is fixed in 5.10.111 (unaffected)

Vendor states this is fixed in 5.15.34 (unaffected)

Vendor states this is fixed in 5.16.20 (unaffected)