CVE-2026-43262 gfs2: fiemap page fault fix

In the Linux kernel, the following vulnerability has been resolved: gfs2: fiemap page fault fix In gfs2fiemap, we are calling iomapfiemap while holding the inode glock. This can lead to recursive glock taking if the fiemap buffer is memory mapped to the same inode and accessing it triggers a page...

CVE-2026-43262

CVE-2026-43262 stems from a Linux kernel gfs2 fiemap page fault: gfs2_fiemap() calls iomap_fiemap() while holding the inode glock, risking recursive glock taking if the fiemap buffer maps to the same inode. The fix disables page faults for iomap_fiemap() and faults in the buffer by hand when need...