CVE-2026-89653

Katalog CVE

CVSS 9.8 · Critical EPSS 0,50%

Skor CVSS 3.1 9.8 (Critical) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: ceph: reject export_targets ranks >= CEPH_MAX_MDS in mdsmap decode MDSMap export_targets entries are monitor controlled. check_new_map() uses each entry as a bit number in a fixed stack bitmap, so a rank outside the protocol namespace can make set_bit() write past the end of the array. Reject ranks outside CEPH_MAX_MDS while decoding the map. Do not validate against possible_max_rank here because maps may legitimately reference ranks beyond a temporarily reduced max_mds.

Rincian

Terbit di NVD

11 September 2026

Terakhir diubah

14 September 2026

Status NVD

Received

CVSS 3.1

9.8 (Critical), sumber CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator

EPSS (30 hari)

0,50% peluang dieksploitasi; lebih tinggi dari 41,3% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/3740c88ca9cb2210a8dbdd55ea4cec119fbe86fe
• https://git.kernel.org/stable/c/4d298880f82c42383b36946bafde7ccf4d804c9b
• https://git.kernel.org/stable/c/736adee11af36e407ed902264f8b2fb5cf94b62f
• https://git.kernel.org/stable/c/8c823bbab3c24e657469a84db96902ba82d4e8bb
• https://git.kernel.org/stable/c/96c3f5fbb0d5386e7111426f047f98cec4586674
• https://git.kernel.org/stable/c/aedc9053d909508a5f56c3f49f885fc030df4730
• https://git.kernel.org/stable/c/c4addccd05bacbef2144b4db14853d0308a218ac