CVE-2024-35821 ubifs: Set page uptodate in the correct place

What is CVE-2024-35821?

CVE-2024-35821 is a high-severity vulnerability in Debian Debian Linux, published on 17 May 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-772

Which versions are affected by CVE-2024-35821?

It affects 2 products.

Products include Debian Debian Linux, Linux kernel.

How do I fix CVE-2024-35821?

Apply the vendor's patch.

Is CVE-2024-35821 being exploited?

There is no known exploitation of CVE-2024-35821 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2024-35821, DEBIAN-CVE-2024-35821, GHSA-vf5r-hx7h-7rvc, UBUNTU-CVE-2024-35821.