CVE-2026-72098

Katalog CVE

CVSS 9.8 · Critical EPSS 0,66%

Skor CVSS 3.1 9.8 (Critical) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: dm-verity: fix buffer overflow in FEC calculation There's a buffer overflow in dm-verity-fec: if (neras && *neras <= v->fec->roots) fio->erasures[(*neras)++] = i; This allows *neras to reach roots + 1 (the post-increment pushes it past roots). This value is then passed as no_eras to decode_rs8(). Inside the RS decoder (lib/reed_solomon/decode_rs.c:113-121), the erasure locator polynomial loop writes lambda[j] where j can reach nroots + 1 — one element past the end of lambda[] (which is sized nroots + 1, valid indices 0..nroots). The out-of-bounds write lands on syn[0], corrupting the syndrome buffer.

Advisory KUTIM-CSIRT

• Peringatan Keamanan: 15 Kerentanan Kernel Linux Periode Agustus 2026 pada Ubuntu dan AlmaLinux 27 Sep 2026

Rincian

Terbit di NVD

15 Agustus 2026

Terakhir diubah

17 Agustus 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)

0,66% peluang dieksploitasi; lebih tinggi dari 50,4% 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/31d6e6c0ba8d5a7bd59660035a089307100c5e8e
• https://git.kernel.org/stable/c/5488d3a69d205e28f74f18857b853aa12e778e66
• https://git.kernel.org/stable/c/f7990c2b0f08b8841fcd2652d1d7002f5994a7a7