CVE-2024-44941

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to cover read extent cache access with lock syzbot reports a f2fs bug as below: BUG: KASAN: slab-use-after-free in sanitycheckextentcache+0x370/0x410 fs/f2fs/extentcache.c:46 Read of size 4 at addr ffff8880739ab220 by...

CVE-2024-39467 f2fs: fix to do sanity check on i_xattr_nid in sanity_check_inode()

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on ixattrnid in sanitycheckinode syzbot reports a kernel bug as below: F2FS-fs loop0: Mounted with checkpoint version = 48b305e4 ================================================================== BUG:...

CVE-2024-39467

CVE-2024-39467 (Linux kernel, f2fs) is rooted in a missing sanity check for i_xattr_nid in f2fs_iget(). In the fiemap path this allows current_nat_addr() to read from nat_bitmap using an invalid i_xattr_nid, triggering a KASAN slab-out-of-bounds bug. The issue is fixed by adding the sanity check ...