CVE-2024-40902 Information

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.

Reference

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