CVE-2022-49560

Summary: CVE-2022-49560 affects the Linux kernel exfat code. A slab-out-of-bounds read in exfat_clear_bitmap was triggered by truncating to size 0, reported by Syzbot. Root cause/fix in connected docs: the patch moves the is_valid_cluster() helper from fatent.c to a common header to allow reuse, ...

CVE-2022-49560 exfat: check if cluster num is valid

In the Linux kernel, the following vulnerability has been resolved: exfat: check if cluster num is valid Syzbot reported slab-out-of-bounds read in exfatclearbitmap. This was triggered by reproducer calling truncute with size 0, which causes the following trace: BUG: KASAN: slab-out-of-bounds in...