CVE-2026-23232

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> Revert "f2fs: block cache/dio write during f2fs_enable_checkpoint()"<br /> <br /> This reverts commit 196c81fdd438f7ac429d5639090a9816abb9760a.<br /> <br /> Original patch may cause below deadlock, revert it.<br /> <br /> write remount<br /> - write_begin<br /> - lock_page --- lock A<br /> - prepare_write_begin<br /> - f2fs_map_lock<br /> - f2fs_enable_checkpoint<br /> - down_write(cp_enable_rwsem) --- lock B<br /> - sync_inode_sb<br /> - writepages<br /> - lock_page --- lock A<br /> - down_read(cp_enable_rwsem) --- lock A