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.
Metrics
Affected Vendors & Products
References
History
Thu, 10 Jul 2025 08:00:00 +0000
Type | Values Removed | Values Added |
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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. | |
Title | btrfs: exit after state insertion failure at btrfs_convert_extent_bit() | |
References |
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Status: PUBLISHED
Assigner: Linux
Published: 2025-07-10T07:41:51.846Z
Updated: 2025-07-10T07:41:51.846Z
Reserved: 2025-04-16T04:51:23.998Z
Link: CVE-2025-38269

No data.

Status : Awaiting Analysis
Published: 2025-07-10T08:15:25.083
Modified: 2025-07-10T13:17:30.017
Link: CVE-2025-38269

No data.