CVE-2025-21815 — mm/compaction: fix UBSAN shift-out-of-bounds warning
In the Linux kernel, the following vulnerability has been resolved: mm/compaction: fix UBSAN shift-out-of-bounds warning syzkaller reported a UBSAN shift-out-of-bounds warning…
Published: 2025-02-27 · CVSS: Unscored
In the Linux kernel, the following vulnerability has been resolved: mm/compaction: fix UBSAN shift-out-of-bounds warning syzkaller reported a UBSAN shift-out-of-bounds warning of (1UL << order) in isolate_freepages_block(). The bogus compound_order can be any value because it is union with flags. Add back the MAX_PAGE_ORDER check to fix the warning.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7