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Fencer Vulns
medium 5.5

CVE-2024-53685 json

ceph: give up on paths longer than PATH_MAX

published 2025-01-11 21 mo ago modified 2026-11-05 3 d ago also EUVD-2024-52029

cvss
5.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 14%
public exploits
0
none known

Summary

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.

Patch / fix

  • Linux Linux 5.10.234, 5.15.177, 6.1.125, 6.6.70, 6.12.7, 6.13
  • linux Debian 12 6.1.128-1
  • linux Debian 14, Debian 13 6.12.8-1

debian advisories DEBIAN-CVE-2024-53685

  • linux Ubuntu 22.04 LTS 5.15.0-135.146
  • linux Ubuntu 24.04 LTS 6.8.0-60.63
  • linux-aws Ubuntu 22.04 LTS 5.15.0-1080.87
  • linux-aws Ubuntu 24.04 LTS 6.8.0-1029.31
  • linux-gcp Ubuntu 22.04 LTS 5.15.0-1079.88
  • linux-gcp Ubuntu 24.04 LTS 6.8.0-1030.32
  • linux-gke Ubuntu 22.04 LTS 5.15.0-1077.83
  • linux-gke Ubuntu 24.04 LTS 6.8.0-1025.29

ubuntu advisories UBUNTU-CVE-2024-53685

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • kernel-rt Linux Micro 6.1, Linux Micro 6.0 6.4.0-25.1
  • kernel-source-rt Linux Micro 6.1, Linux Micro 6.0 6.4.0-25.1
  • kernel-livepatch-MICRO-6-0-RT_Update_5 Linux Micro 6.1, Linux Micro 6.0 1-1.1
  • kernel-source Linux Micro 6.1, Linux Micro 6.0 6.4.0-25.1
  • kernel-default Linux Micro 6.1, Linux Micro 6.0 6.4.0-25.1
  • kernel-kvmsmall Linux Micro 6.1, Linux Micro 6.0 6.4.0-25.1
  • kernel-default-base Linux Micro 6.1, Linux Micro 6.0 6.4.0-24.1.21.4
  • kernel-livepatch-MICRO-6-0_Update_5 Linux Micro 6.1, Linux Micro 6.0 1-1.2

suse advisories SUSE-SU-2025:20166-1SUSE-SU-2025:20249-1SUSE-SU-2025:20165-1SUSE-SU-2025:20248-1SUSE-SU-2025:0557-1SUSE-SU-2025:0499-1

  • kernel AlmaLinux 10 6.12.0-211.50.1.el10_2
  • rv AlmaLinux 10 6.12.0-211.50.1.el10_2
  • perf AlmaLinux 10 6.12.0-211.50.1.el10_2
  • rtla AlmaLinux 10 6.12.0-211.50.1.el10_2
  • libperf AlmaLinux 10 6.12.0-211.50.1.el10_2
  • kernel-rt AlmaLinux 10 6.12.0-211.50.1.el10_2
  • kernel-64k AlmaLinux 10 6.12.0-211.50.1.el10_2
  • kernel-core AlmaLinux 10 6.12.0-211.50.1.el10_2

almalinux advisories ALSA-2026:61887

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-53685 updated cvss 5.5

kernel: ceph: give up on paths longer than PATH_MAX

  • Red Hat Enterprise Linux 7 perf, kernel, bpftool, kernel-rt, python-perf, kernel-kdump, +8 more Red Hat Enterprise Linux 8 perf, kernel, bpftool, kernel-rt, kernel-core, kernel-tools, +29 more
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 9 rv, perf, rtla, kernel, bpftool, libperf, +83 more
    affected: no fix available “Fix deferred”
  • Red Hat Enterprise Linux 6 perf, kernel, python-perf, kernel-kdump, kernel-firmware, kernel-bootwrapper, +1 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
3 d ago

Exploit prediction

0.23% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

  • Linux Linux

Classification

Weakness
  • CWE-835 Loop with Unreachable Exit Condition
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.