CVE-2024-40902

HIGH
Published Jul 12, 2024 Modified Nov 3, 2025 CWE-120 CWE-121

Description

In the Linux kernel, the following vulnerability has been resolved: jfs: xattr: fix buffer overflow for invalid xattr When an xattr size is not what is expected, it is printed out to the kernel log in hex format as a form of debugging. But when that xattr size is bigger than the expected size, printing it out can cause an access off the end of the buffer. Fix this all up by properly restricting the size of the debug hex dump in the kernel log.

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CVSS v3.1 Score

7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-120 CWE-120
CWE-121 CWE-121

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

References

Advisories & Patches

https://git.kernel.org/stable/c/1e84c9b1838152a87cf453270a5fa75c5037e83a https://git.kernel.org/stable/c/33aecc5799c93d3ee02f853cb94e201f9731f123 https://git.kernel.org/stable/c/4598233d9748fe4db4e13b9f473588aa25e87d69 https://git.kernel.org/stable/c/480e5bc21f2c42d90c2c16045d64d824dcdd5ec7 https://git.kernel.org/stable/c/7c55b78818cfb732680c4a72ab270cc2d2ee3d0f https://git.kernel.org/stable/c/b537cb2f4c4a1357479716a9c339c0bda03d873f https://git.kernel.org/stable/c/f0dedb5c511ed82cbaff4997a8decf2351ba549f https://git.kernel.org/stable/c/fc745f6e83cb650f9a5f2c864158e3a5ea76dad0 https://git.kernel.org/stable/c/1e84c9b1838152a87cf453270a5fa75c5037e83a https://git.kernel.org/stable/c/33aecc5799c93d3ee02f853cb94e201f9731f123 https://git.kernel.org/stable/c/4598233d9748fe4db4e13b9f473588aa25e87d69 https://git.kernel.org/stable/c/480e5bc21f2c42d90c2c16045d64d824dcdd5ec7 https://git.kernel.org/stable/c/7c55b78818cfb732680c4a72ab270cc2d2ee3d0f https://git.kernel.org/stable/c/b537cb2f4c4a1357479716a9c339c0bda03d873f https://git.kernel.org/stable/c/f0dedb5c511ed82cbaff4997a8decf2351ba549f https://git.kernel.org/stable/c/fc745f6e83cb650f9a5f2c864158e3a5ea76dad0

Frequently Asked Questions

What is CVE-2024-40902? +
In the Linux kernel, the following vulnerability has been resolved: jfs: xattr: fix buffer overflow for invalid xattr When an xattr size is not what is expected, it is printed out to the kernel log in hex format as a form of debugging. But when that xattr size is bigger than the expected size, printing it out can cause an access off the end of the buffer. Fix this all up by properly restricting the size of the debug hex dump in the kernel log. It has a CVSS v3.1 base score of 7.8 (HIGH).
How severe is CVE-2024-40902? +
CVE-2024-40902 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2024-40902? +
CVE-2024-40902 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-40902? +
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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