What’s Vulnerable › Vulnerabilities

CVE-2024-35868: smb: client: fix potential UAF in cifs_stats_proc_write()

• 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_stats_proc_write() Skip sessions that are being teared down (status == SES_EXITING) to avoid UAF.

Affected products

• Linux kernel: before 6.1.85; from 6.2 before 6.6.26; from 6.7 before 6.8.5; 6.9-rc1, 6.9-rc2 — fixed in 6.1.85, 6.6.26, 6.8.5

How to fix

Upgrade to a fixed version: Linux kernel 6.1.85, 6.6.26, 6.8.5. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/5b5475ce69f02ecc1b13ea23106e5b89c690429b
• https://git.kernel.org/stable/c/8fefd166fcb368c5fcf48238e3f7c8af829e0a72
• https://git.kernel.org/stable/c/cf03020c56d3ed28c4942280957a007b5e9544f7
• https://git.kernel.org/stable/c/d3da25c5ac84430f89875ca7485a3828150a7e0a
• https://git.kernel.org/stable/c/5b5475ce69f02ecc1b13ea23106e5b89c690429b
• https://git.kernel.org/stable/c/8fefd166fcb368c5fcf48238e3f7c8af829e0a72
• https://git.kernel.org/stable/c/cf03020c56d3ed28c4942280957a007b5e9544f7
• https://git.kernel.org/stable/c/d3da25c5ac84430f89875ca7485a3828150a7e0a

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