CVE-2024-49902

CVE-2024-49902 in the Linux kernel affects the JFS dmmap path. The root cause is an out-of-bounds condition in dbSplit when dmt_leafidx exceeds the number of leaves per dmap tree; a bounds check was added in dbFindLeaf. Shaggy’s change also extends the sanity check to cover control pages in addit...

CVE-2024-49902 jfs: check if leafidx greater than num leaves per dmap tree

In the Linux kernel, the following vulnerability has been resolved: jfs: check if leafidx greater than num leaves per dmap tree syzbot report a out of bounds in dbSplit, it because dmtleafidx greater than num leaves per dmap tree, add a checking for dmtleafidx in dbFindLeaf. Shaggy: Modified sani...