CVE-2024-26697

MEDIUM
Published Apr 3, 2024 Modified Mar 17, 2025 CWE-787

Description

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix data corruption in dsync block recovery for small block sizes The helper function nilfs_recovery_copy_block() of nilfs_recovery_dsync_blocks(), which recovers data from logs created by data sync writes during a mount after an unclean shutdown, incorrectly calculates the on-page offset when copying repair data to the file's page cache. In environments where the block size is smaller than the page size, this flaw can cause data corruption and leak uninitialized memory bytes during the recovery process. Fix these issues by correcting this byte offset calculation on 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-787 Out-of-bounds Write

Affected Products

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

References

Advisories & Patches

https://git.kernel.org/stable/c/120f7fa2008e3bd8b7680b4ab5df942decf60fd5 https://git.kernel.org/stable/c/2000016bab499074e6248ea85aeea7dd762355d9 https://git.kernel.org/stable/c/2e1480538ef60bfee5473dfe02b1ecbaf1a4aa0d https://git.kernel.org/stable/c/364a66be2abdcd4fd426ffa44d9b8f40aafb3caa https://git.kernel.org/stable/c/5278c3eb6bf5896417572b52adb6be9d26e92f65 https://git.kernel.org/stable/c/67b8bcbaed4777871bb0dcc888fb02a614a98ab1 https://git.kernel.org/stable/c/9c9c68d64fd3284f7097ed6ae057c8441f39fcd3 https://git.kernel.org/stable/c/a6efe6dbaaf504f5b3f8a5c3f711fe54e7dda0ba https://git.kernel.org/stable/c/120f7fa2008e3bd8b7680b4ab5df942decf60fd5 https://git.kernel.org/stable/c/2000016bab499074e6248ea85aeea7dd762355d9 https://git.kernel.org/stable/c/2e1480538ef60bfee5473dfe02b1ecbaf1a4aa0d https://git.kernel.org/stable/c/364a66be2abdcd4fd426ffa44d9b8f40aafb3caa https://git.kernel.org/stable/c/5278c3eb6bf5896417572b52adb6be9d26e92f65 https://git.kernel.org/stable/c/67b8bcbaed4777871bb0dcc888fb02a614a98ab1 https://git.kernel.org/stable/c/9c9c68d64fd3284f7097ed6ae057c8441f39fcd3 https://git.kernel.org/stable/c/a6efe6dbaaf504f5b3f8a5c3f711fe54e7dda0ba

Frequently Asked Questions

What is CVE-2024-26697? +
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix data corruption in dsync block recovery for small block sizes The helper function nilfs_recovery_copy_block() of nilfs_recovery_dsync_blocks(), which recovers data from logs created by data sync writes during a mount after an unclean shutdown, incorrectly calculates the on-page offset when copying repair data to the file's page cache. In environments where the block size is smaller than the page size, this flaw can cause data corruption and leak uninitialized memory bytes during the recovery process. Fix these issues by correcting this byte offset calculation on the page. It has a CVSS v3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2024-26697? +
CVE-2024-26697 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-2024-26697? +
CVE-2024-26697 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-2024-26697? +
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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