What’s Vulnerable › Vulnerabilities

CVE-2024-35866: smb: client: fix potential UAF in cifs_dump_full_key()

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-19 · updated 2026-06-17
• Weakness: CWE-416

Description

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix potential UAF in cifs_dump_full_key() Skip sessions that are being teared down (status == SES_EXITING) to avoid UAF.

Affected products

• Debian Linux: 11.0
• Linux kernel: from 5.13 before 5.15.181; from 5.16 before 6.1.132; from 6.2 before 6.6.26; from 6.7 before 6.8.5; 6.9-rc1, 6.9-rc2 — fixed in 5.15.181, 6.1.132, 6.6.26, 6.8.5

How to fix

Upgrade to a fixed version: Linux kernel 5.15.181, 6.1.132, 6.6.26, 6.8.5. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/10e17ca4000ec34737bde002a13435c38ace2682
• https://git.kernel.org/stable/c/3103163ccd3be4adcfa37e15608fb497be044113
• https://git.kernel.org/stable/c/58acd1f497162e7d282077f816faa519487be045
• https://git.kernel.org/stable/c/d798fd98e3563027c5162259ead517057d6fa794
• https://git.kernel.org/stable/c/f4a60d360d9114b5085701a3702a0102b0d6d846
• https://git.kernel.org/stable/c/10e17ca4000ec34737bde002a13435c38ace2682
• https://git.kernel.org/stable/c/3103163ccd3be4adcfa37e15608fb497be044113
• https://git.kernel.org/stable/c/58acd1f497162e7d282077f816faa519487be045
• https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html

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