CVE-2024-35821

MEDIUM
Published May 17, 2024 Modified Dec 23, 2025 CWE-772

Description

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.

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CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-772 CWE-772

Affected Products

Vendor Product
debian debian_linux
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel

References

Advisories & Patches

https://git.kernel.org/stable/c/142d87c958d9454c3cffa625fab56f3016e8f9f3 https://git.kernel.org/stable/c/17772bbe9cfa972ea1ff827319f6e1340de76566 https://git.kernel.org/stable/c/4aa554832b9dc9e66249df75b8f447d87853e12e https://git.kernel.org/stable/c/4b7c4fc60d6a46350fbe54f5dc937aeaa02e675e https://git.kernel.org/stable/c/723012cab779eee8228376754e22c6594229bf8f https://git.kernel.org/stable/c/778c6ad40256f1c03244fc06d7cdf71f6b5e7310 https://git.kernel.org/stable/c/8f599ab6fabbca4c741107eade70722a98adfd9f https://git.kernel.org/stable/c/f19b1023a3758f40791ec166038d6411c8894ae3 https://git.kernel.org/stable/c/fc99f4e2d2f1ce766c14e98463c2839194ae964f https://git.kernel.org/stable/c/142d87c958d9454c3cffa625fab56f3016e8f9f3 https://git.kernel.org/stable/c/17772bbe9cfa972ea1ff827319f6e1340de76566 https://git.kernel.org/stable/c/4aa554832b9dc9e66249df75b8f447d87853e12e https://git.kernel.org/stable/c/4b7c4fc60d6a46350fbe54f5dc937aeaa02e675e https://git.kernel.org/stable/c/723012cab779eee8228376754e22c6594229bf8f https://git.kernel.org/stable/c/778c6ad40256f1c03244fc06d7cdf71f6b5e7310 https://git.kernel.org/stable/c/8f599ab6fabbca4c741107eade70722a98adfd9f https://git.kernel.org/stable/c/f19b1023a3758f40791ec166038d6411c8894ae3 https://git.kernel.org/stable/c/fc99f4e2d2f1ce766c14e98463c2839194ae964f

Frequently Asked Questions

What is CVE-2024-35821? +
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. It has a CVSS v3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2024-35821? +
CVE-2024-35821 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2024-35821? +
CVE-2024-35821 affects products from debian, linux, specifically: debian_linux, linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-35821? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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