CVE-2025-68348
Gravedad:
Pendiente de análisis
Tipo:
No Disponible / Otro tipo
Fecha de publicación:
24/12/2025
Última modificación:
29/12/2025
Descripción
*** Pendiente de traducción *** 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.



