CVE-2024-49880 ext4: fix off by one issue in alloc_flex_gd()

In the Linux kernel, the following vulnerability has been resolved: ext4: fix off by one issue in allocflexgd Wesley reported an issue: ================================================================== EXT4-fs dm-5: resizing filesystem from 7168 to 786432 blocks ------------ cut here -----------...

CVE-2024-49880

The CVE-2024-49880 entry concerns an off-by-one in ext4 resizing logic (alloc_flex_gd) leading to a kernel BUG in resize operations (resize2fs) when resizing a filesystem. The vulnerability is addressed by a patch that removes the problematic +1 (and adds a WARN_ON_ONCE) to ensure flex_gd->res...

CVE-2023-52622 ext4: avoid online resizing failures due to oversized flex bg

In the Linux kernel, the following vulnerability has been resolved: ext4: avoid online resizing failures due to oversized flex bg When we online resize an ext4 filesystem with a oversized flexbgsize, mkfs.ext4 -F -G 67108864 $dev -b 4096 100M mount $dev $dir resize2fs $dev 16G the following WARNO...