Out-of-bounds Read Affecting torvalds/linux package, versions [4.16,6.1.191)[6.2,6.6.160)[6.7,6.12.114)[6.13,6.16.9)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.35% (29th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-20700359
  • published10 Oct 2026
  • disclosed4 Oct 2025
  • creditUnknown

Introduced: 4 Oct 2025

CVE-2025-39933  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 6.1.191, 6.6.160, 6.12.114, 6.16.9 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-bounds Read in the recv_done process. An attacker can access sensitive kernel memory and cause a system crash by sending specially crafted SMB Direct data-transfer messages with manipulated data_offset and data_length fields over the network.

Note: The Linux kernel project assigns a CVE to every bug fix it ships, whether or not the bug has been shown to be exploitable. This advisory was generated from that process and has not been individually assessed for exploitability. See the kernel's CVE process documentation: https://github.com/torvalds/linux/blob/master/Documentation/process/cve.rst

CVSS Base Scores

version 4.0
version 3.1