Description
In the Linux kernel, the following vulnerability has been resolved: mm/damon: fix divide by zero in damon_get_intervals_score() The current implementation allows having zero size regions with no special reasons, but damon_get_intervals_score() gets crashed by divide by zero when the region size is zero. [ 29.403950] Oops: divide error: 0000 [#1] SMP NOPTI This patch fixes the bug, but does not disallow zero size regions to keep the backward compatibility since disallowing zero size regions might be a breaking change for some users. In addition, the same crash can happen when intervals_goal.access_bp is zero so this should be fixed in stable trees as well.
Product status
f04b0fedbe714f822bd066b319a60faa39a985a1 before ca4bb9ac706f05ead8ac1cce7b8245fc0645a687
f04b0fedbe714f822bd066b319a60faa39a985a1 before bd225b9591442065beb876da72656f4a2d627d03
6.15
Any version before 6.15
6.15.7
6.16
References
git.kernel.org/...c/ca4bb9ac706f05ead8ac1cce7b8245fc0645a687
git.kernel.org/...c/bd225b9591442065beb876da72656f4a2d627d03
