CVE-2025-38411 Information

Jul 26, 2025 cve

Description

In the Linux kernel the following vulnerability has been resolved:

netfs: Fix double put of request

If a netfs request finishes during the pause loop it will have the ref that belongs to the IN_PROGRESS flag removed at that point - however if it then goes to the final wait loop that will also put the ref because it sees that the IN_PROGRESS flag is clear and incorrectly assumes that this happened when it called the collector.

In fact since IN_PROGRESS is clear we shouldn’t call the collector again since it’s done all the cleanup such as calling ->ki_complete().

Fix this by making netfs_collect_in_app() just return indicating that we’re done if IN_PROGRESS is removed.

Reference

https://git.kernel.org/stable/c/9df7b5ebead649b00bf9a53a798e4bf83a1318fd https://git.kernel.org/stable/c/d18facba5a5795ad44b2a00a052e3db2fa77ab12

CNNVD-202507-3240 (Published: 2025-07-25)

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