Description
In the Linux kernel, the following vulnerability has been resolved:
mm: swap: fix potential buffer overflow in setup_clusters()
In setup_swap_map(), we only ensure badpages are in range (0, last_page]. As maxpages might be < last_page, setup_clusters() will encounter a buffer overflow when a badpage is >= maxpages.
Only call inc_cluster_info_page() for badpage which is < maxpages to fix the issue.
Metrics
CVSS 3.1 7.8/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= b843786b0bd01ced7fcdbf3b033d68db2f7c61b2, < 91b370800b3f2b3dda244c0ab06719c4971190a5; >= b843786b0bd01ced7fcdbf3b033d68db2f7c61b2, < 9b01ada580ee84fb319e7ecb5fb5b1f54a9eb799; >= b843786b0bd01ced7fcdbf3b033d68db2f7c61b2, < 815c528b13f2bb9b3130c13bedeabf2351a68129; >= b843786b0bd01ced7fcdbf3b033d68db2f7c61b2, < 152c1339dc13ad46f1b136e8693de15980750835 |
| Linux | Linux | 6.12 |
References
- https://git.kernel.org/stable/c/152c1339dc13ad46f1b136e8693de15980750835Patch
- https://git.kernel.org/stable/c/815c528b13f2bb9b3130c13bedeabf2351a68129Patch
- https://git.kernel.org/stable/c/91b370800b3f2b3dda244c0ab06719c4971190a5Patch
- https://git.kernel.org/stable/c/9b01ada580ee84fb319e7ecb5fb5b1f54a9eb799Patch
Timeline
- Published
- Sep 7, 2025
- Last modified
- Oct 19, 2026
- NVD status
- Analyzed