CVE-2025-38269 Information

Jul 12, 2025 cve

Description

In the Linux kernel the following vulnerability has been resolved:

btrfs: exit after state insertion failure at btrfs_convert_extent_bit()

If insert_state() state failed it returns an error pointer and we call extent_io_tree_panic() which will trigger a BUG() call. However if CONFIG_BUG is disabled which is an uncommon and exotic scenario then we fallthrough and call cache_state() which will dereference the error pointer resulting in an invalid memory access.

So jump to the ‘out’ label after calling extent_io_tree_panic() it also makes the code more clear besides dealing with the exotic scenario where CONFIG_BUG is disabled.

Reference

https://git.kernel.org/stable/c/3bf179e36da917c5d9bec71c714573ed1649b7c1 https://git.kernel.org/stable/c/58c50f45e1821a04d61b62514f9bd34afe67c622 https://git.kernel.org/stable/c/8d9d32088e304e2bc444a3087cab0bbbd9951866

CNNVD-202507-1391 (Published: 2025-07-10)

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