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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-52958 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: libceph: Fix potential out-of-bounds access in osdmap_decode() When decoding osd_state and osd_weight from an incoming osdmap in osdmap_decode(), both are decoded for each osd, i.e., map->max_osd times. The ceph_decode_need() check only accounts for sizeof(*map->osd_weight) once. This can potentially result in an out-of-bounds memory access if the incoming message is corrupted such that the max_osd value exceeds the actual content of the osdmap message. This patch fixes the issue by changing the corresponding part in the ceph_decode_need() check to account for map->max_osd*sizeof(*map->osd_weight).


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/0d2dd7e6bb74fd7712aa73457a4a821906c6863a kernel.org
https://git.kernel.org/stable/c/35d0ed82d03e5ee77ea4f31f20e29562a7721649 kernel.org
https://git.kernel.org/stable/c/36a79759a288961b1ff28a68ec2d1f56f6848098 kernel.org
https://git.kernel.org/stable/c/3f2575bb7f955d42569d96c3e04fa958a0dcf4b4 kernel.org
https://git.kernel.org/stable/c/48df98d12b15360cd56af5c1f460307b340c1197 kernel.org
https://git.kernel.org/stable/c/8713bbc4b2b9ad78f803978e54b7e49dd21bd9be kernel.org
https://git.kernel.org/stable/c/e7187f33c02488697ec0d01d82bf7a3f8deaba8f kernel.org
https://git.kernel.org/stable/c/ee933694645dac062d65fc2743f92bc06fa0db6b kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-52958
NVD Published Date:
06/24/2026
NVD Last Modified:
06/24/2026
Source:
kernel.org