CVE-2026-52958

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).
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*

History

14 Jul 2026, 16:39

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*
CWE CWE-125
References () https://git.kernel.org/stable/c/0d2dd7e6bb74fd7712aa73457a4a821906c6863a - () https://git.kernel.org/stable/c/0d2dd7e6bb74fd7712aa73457a4a821906c6863a - Patch
References () https://git.kernel.org/stable/c/35d0ed82d03e5ee77ea4f31f20e29562a7721649 - () https://git.kernel.org/stable/c/35d0ed82d03e5ee77ea4f31f20e29562a7721649 - Patch
References () https://git.kernel.org/stable/c/36a79759a288961b1ff28a68ec2d1f56f6848098 - () https://git.kernel.org/stable/c/36a79759a288961b1ff28a68ec2d1f56f6848098 - Patch
References () https://git.kernel.org/stable/c/3f2575bb7f955d42569d96c3e04fa958a0dcf4b4 - () https://git.kernel.org/stable/c/3f2575bb7f955d42569d96c3e04fa958a0dcf4b4 - Patch
References () https://git.kernel.org/stable/c/48df98d12b15360cd56af5c1f460307b340c1197 - () https://git.kernel.org/stable/c/48df98d12b15360cd56af5c1f460307b340c1197 - Patch
References () https://git.kernel.org/stable/c/8713bbc4b2b9ad78f803978e54b7e49dd21bd9be - () https://git.kernel.org/stable/c/8713bbc4b2b9ad78f803978e54b7e49dd21bd9be - Patch
References () https://git.kernel.org/stable/c/e7187f33c02488697ec0d01d82bf7a3f8deaba8f - () https://git.kernel.org/stable/c/e7187f33c02488697ec0d01d82bf7a3f8deaba8f - Patch
References () https://git.kernel.org/stable/c/ee933694645dac062d65fc2743f92bc06fa0db6b - () https://git.kernel.org/stable/c/ee933694645dac062d65fc2743f92bc06fa0db6b - Patch
First Time Linux linux Kernel
Linux

28 Jun 2026, 08:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 9.1

24 Jun 2026, 17:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-06-24 17:17

Updated : 2026-07-14 16:39


NVD link : CVE-2026-52958

Mitre link : CVE-2026-52958

CVE.ORG link : CVE-2026-52958


JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-125

Out-of-bounds Read