CVE-2022-49074
MediumIn 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.
CVSS 3.1 score
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected versions
Linux kernel versions
3.17
and later are affected. Fixed in
4.19.238,
5.4.189,
5.10.111,
5.15.34,
5.16.20,
5.17.3,
5.18
and their respective stable series.
References
The following references provide additional information about CVE-2022-49074 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.
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PatchKernel patch commithttps://git.kernel.org/stable/c/0df6664531a12cdd8fc873f0cac0dcb40243d3e9
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PatchKernel patch commithttps://git.kernel.org/stable/c/3c07cc242baf83f0bddbbd9d7945d0bee56d8b57
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PatchKernel patch commithttps://git.kernel.org/stable/c/60e1eb4811f53f5f60c788297d978515e7a2637a
Frequently asked questions
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What is CVE-2022-49074?
CVE-2022-49074 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 3.17 onward and has been patched in 4.19.238, 5.4.189, 5.10.111 and others. CVE-2022-49074 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2022-49074?
CVE-2022-49074 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. -
Is there a patch available for CVE-2022-49074?
Yes — CVE-2022-49074 has been patched. Fixed versions include 4.19.238, 5.4.189, 5.10.111 and others. If you are running Linux kernel 3.17 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2022-49074 actively exploited?
No — CVE-2022-49074 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.