# CVE-2026-89716

## Summary

- **CVE ID:** CVE-2026-89716
- **Severity:** UNKNOWN
- **CVSS Score:** 1.51
- **CWE:** N/A
- **Published:** Sep 11, 2026
- **Last Modified:** Sep 16, 2026

## 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.

## Affected Products

- Linux — Linux (dc75a0d93bd5a1c64104efb4ec680463afbdd755)
- Linux — Linux (6.16)
- Linux — Linux (0)
- Linux — Linux (6.18.50)
- Linux — Linux (7.2.4)
- Linux — Linux (7.3-rc1)

## References

- [CNA](https://git.kernel.org/stable/c/923578d0f0d0703c3db61ab35dc37075ae53b0bd)
- [CNA](https://git.kernel.org/stable/c/e23fac4ab2a5728386477b98a402a1042b21bffb)
- [CNA](https://git.kernel.org/stable/c/ec7607ac4717ff521c9c1e9d8271c26293345513)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.20%
- **EPSS Percentile:** 9.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-17._