CVE-2026-80720

In the Linux kernel, the following vulnerability has been resolved:

iomap: add a separate bio set for iomap split ioend

iomap split ioend can split bios that already come from iomap ioend bioset and thus deadlock when the bioset is exhausted.

Add a separate bio set to avoid this deadlock.

Christian Brauner brauner@kernel.org says: Mark iomap ioend split bioset static as it is only used in ioend.c, fixing the sparse warning reported by the kernel test robot.