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Unrated severityNVD Advisory· Published Mar 4, 2024· Updated Nov 4, 2025

tomoyo: fix UAF write bug in tomoyo_write_control()

CVE-2024-26622

Description

In the Linux kernel, the following vulnerability has been resolved:

tomoyo: fix UAF write bug in tomoyo_write_control()

Since tomoyo_write_control() updates head->write_buf when write() of long lines is requested, we need to fetch head->write_buf after head->io_sem is held. Otherwise, concurrent write() requests can cause use-after-free-write and double-free problems.

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Affected products

217

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