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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-52954 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: libceph: handle rbtree insertion error in decode_choose_args() A message of type CEPH_MSG_OSD_MAP contains an OSD map that itself contains a CRUSH map. The received CRUSH map may optionally contain choose_args that get decoded in decode_choose_args(). In this function, num_choose_arg_maps is read from the message, and a corresponding number of crush_choose_arg_maps gets decoded afterwards. Each crush_choose_arg_map has a choose_args_index, which serves as the key when inserting it into the choose_args rbtree of the decoded crush_map. If a (potentially corrupted) message contains two crush_choose_arg_maps with the same index, the assertion in insert_choose_arg_map() triggers a kernel BUG when trying to insert the second crush_choose_arg_map. This patch fixes the issue by switching to the non-asserting rbtree insertion function and rejecting the message if the insertion fails. [ idryomov: changelog ]


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/0a1265a9ab875f92b6a3ffb497404f46cf9d76a3 kernel.org
https://git.kernel.org/stable/c/0b6a3bcb91bc5bfeda39f0df3b71bab62c13e9da kernel.org
https://git.kernel.org/stable/c/4d2b37abda9536808655830d683dc491d31741a8 kernel.org
https://git.kernel.org/stable/c/534ebc08df97c47d4c7596f336fa31ecbf91519c kernel.org
https://git.kernel.org/stable/c/80c73bd1b2b04355d1d0c29be8ccbd25a380905d kernel.org
https://git.kernel.org/stable/c/c7bf7864e2924fa5508ac270b0e9364bc13d5a6c kernel.org
https://git.kernel.org/stable/c/d289478cfc0bcf81c7914200d6abdcb78bd04ded kernel.org
https://git.kernel.org/stable/c/f47430fc1f815e87406e2d3b4e476eff1bc7fd9b kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-52954
NVD Published Date:
06/24/2026
NVD Last Modified:
06/28/2026
Source:
kernel.org