CVE-2025-68348

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> block: fix memory leak in __blkdev_issue_zero_pages<br /> <br /> Move the fatal signal check before bio_alloc() to prevent a memory<br /> leak when BLKDEV_ZERO_KILLABLE is set and a fatal signal is pending.<br /> <br /> Previously, the bio was allocated before checking for a fatal signal.<br /> If a signal was pending, the code would break out of the loop without<br /> freeing or chaining the just-allocated bio, causing a memory leak.<br /> <br /> This matches the pattern already used in __blkdev_issue_write_zeroes()<br /> where the signal check precedes the allocation.