What’s Vulnerable › Vulnerabilities

CVE-2024-35999: smb3: missing lock when picking channel

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-20 · updated 2026-08-04
• Weakness: CWE-667

Description

In the Linux kernel, the following vulnerability has been resolved: smb3: missing lock when picking channel Coverity spotted a place where we should have been holding the channel lock when accessing the ses channel index. Addresses-Coverity: 1582039 ("Data race condition (MISSING_LOCK)")

Affected products

• Linux kernel: before 6.1.91; from 6.2 before 6.6.30; from 6.7 before 6.8.9; 6.9-rc1, 6.9-rc2, 6.9-rc3, 6.9-rc4, 6.9-rc5 — fixed in 6.1.91, 6.6.30, 6.8.9

How to fix

Upgrade to a fixed version: Linux kernel 6.1.91, 6.6.30, 6.8.9. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0fcf7e219448e937681216353c9a58abae6d3c2e
• https://git.kernel.org/stable/c/60ab245292280905603bc0d3654f4cf8fceccb00
• https://git.kernel.org/stable/c/8094a600245e9b28eb36a13036f202ad67c1f887
• https://git.kernel.org/stable/c/98c7ed29cd754ae7475dc7cb3f33399fda902729
• https://git.kernel.org/stable/c/0fcf7e219448e937681216353c9a58abae6d3c2e
• https://git.kernel.org/stable/c/60ab245292280905603bc0d3654f4cf8fceccb00
• https://git.kernel.org/stable/c/8094a600245e9b28eb36a13036f202ad67c1f887
• https://git.kernel.org/stable/c/98c7ed29cd754ae7475dc7cb3f33399fda902729

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