CVE-2026-89716

high

Description

In the Linux kernel, the following vulnerability has been resolved: zram: validate deflate params We must validate user-supplied deflate winbits before we pass it to zlib_deflate_workspacesize(), which triggers BUG_ON() if winbits value is outside of valid ranges.

References

https://git.kernel.org/stable/c/ec7607ac4717ff521c9c1e9d8271c26293345513

https://git.kernel.org/stable/c/e23fac4ab2a5728386477b98a402a1042b21bffb

https://git.kernel.org/stable/c/923578d0f0d0703c3db61ab35dc37075ae53b0bd

Details

Source: Mitre, NVD

Published: 2026-09-11

Updated: 2026-09-11

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.1

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

Severity: High

EPSS

EPSS: 0.00198