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medium5.5

CVE-2024-53685

In the Linux kernel, the following vulnerability has been resolved: ceph: give up on paths longer than PATH_MAX If the full path to be built by ceph_mdsc_build…

Impact

In the Linux kernel, the following vulnerability has been resolved: ceph: give up on paths longer than PATH_MAX If the full path to be built by ceph_mdsc_build_path() happens to be longer than PATH_MAX, then this function will enter an endless (retry) loop, effectively blocking the whole task. Most of the machine becomes unusable, making this a very simple and effective DoS vulnerability. I cannot imagine why this retry was ever implemented, but it seems rather useless and harmful to me. Let's remove it and fail with ENAMETOOLONG instead.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 2.6.35 before 5.10.234
from 5.11 before 5.15.177
from 5.16 before 6.1.125
from 6.2 before 6.6.70
from 6.7 before 6.12.7
Version 2.6.34

Weakness classification

CWE-835

References