CVE-2024-35821

low-risk
Published 2024-05-17

In the Linux kernel, the following vulnerability has been resolved: ubifs: Set page uptodate in the correct place Page cache reads are lockless, so setting the freshly allocated page uptodate before we've overwritten it with the data it's supposed to have in it will allow a simultaneous reader to see old data. Move the call to SetPageUptodate into ubifs_write_end(), which is after we copied the new data into the page.

Do I need to act?

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0.11% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (2)

Affected Vendors

Debian Linux

References (20)

Patch https://git.kernel.org/stable/c/142d87c958d9454c3cffa625fab56f3016e8f9f3
Patch https://git.kernel.org/stable/c/17772bbe9cfa972ea1ff827319f6e1340de76566
Patch https://git.kernel.org/stable/c/4aa554832b9dc9e66249df75b8f447d87853e12e
Patch https://git.kernel.org/stable/c/4b7c4fc60d6a46350fbe54f5dc937aeaa02e675e
Patch https://git.kernel.org/stable/c/723012cab779eee8228376754e22c6594229bf8f
Patch https://git.kernel.org/stable/c/778c6ad40256f1c03244fc06d7cdf71f6b5e7310
Patch https://git.kernel.org/stable/c/8f599ab6fabbca4c741107eade70722a98adfd9f
Patch https://git.kernel.org/stable/c/f19b1023a3758f40791ec166038d6411c8894ae3
Patch https://git.kernel.org/stable/c/fc99f4e2d2f1ce766c14e98463c2839194ae964f
Patch https://git.kernel.org/stable/c/142d87c958d9454c3cffa625fab56f3016e8f9f3
Patch https://git.kernel.org/stable/c/17772bbe9cfa972ea1ff827319f6e1340de76566
Patch https://git.kernel.org/stable/c/4aa554832b9dc9e66249df75b8f447d87853e12e
Patch https://git.kernel.org/stable/c/4b7c4fc60d6a46350fbe54f5dc937aeaa02e675e
Patch https://git.kernel.org/stable/c/723012cab779eee8228376754e22c6594229bf8f
Patch https://git.kernel.org/stable/c/778c6ad40256f1c03244fc06d7cdf71f6b5e7310
Patch https://git.kernel.org/stable/c/8f599ab6fabbca4c741107eade70722a98adfd9f
Patch https://git.kernel.org/stable/c/f19b1023a3758f40791ec166038d6411c8894ae3
Patch https://git.kernel.org/stable/c/fc99f4e2d2f1ce766c14e98463c2839194ae964f
Third Party Advisory https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
Third Party Advisory https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
25
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 7/34 · Low