What’s Vulnerable › Vulnerabilities

CVE-2026-89605: ecryptfs: release message context on send failure

• 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: 2026-09-11 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: ecryptfs: release message context on send failure ecryptfs_send_message_locked() moves a message context from the free list to the allocated list before sending the request to the userspace daemon. If ecryptfs_send_miscdev() fails, the context is left on the allocated list and cannot be reused. Move it back to the free list on failure and clear the caller's pointer.

Affected products

• Linux kernel: 2.6.26 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/177e0c32fec3602bb3b64139bb8bb610cd6722c7
• https://git.kernel.org/stable/c/219644a3ad5518217b2d62cad6d2c36a2308c949
• https://git.kernel.org/stable/c/30845ed227475a11a49ccce047837d016b7e0f49
• https://git.kernel.org/stable/c/47ce611cb13f0eefa550d5434c1afcd4217bfc3e
• https://git.kernel.org/stable/c/590fc6140e29c54d2f7839eb9df78d106ee1905e
• https://git.kernel.org/stable/c/654b7e79443f5ea90849f5c1cf70c0d94bd5b10e
• https://git.kernel.org/stable/c/743e7aeb9575c0838d8996d40d81a6b8fa5cd060
• https://git.kernel.org/stable/c/9319706316a8e79f374627554386d575a84b637f

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