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medium5.5

CVE-2022-49074

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 w…

Impact

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 products

VendorProductAffected versions
LinuxLinux Kernel
from 3.17 before 4.19.238
from 4.20 before 5.4.189
from 5.5 before 5.10.111
from 5.11 before 5.15.34
from 5.16 before 5.16.20
from 5.17 before 5.17.3

References