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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.

PUBLISHED Reserved 2025-04-16 | Published 2025-09-07 | Updated 2025-09-29 | Assigner Linux

Product status

Default status
unaffected

b843786b0bd01ced7fcdbf3b033d68db2f7c61b2 (git) before 91b370800b3f2b3dda244c0ab06719c4971190a5
affected

b843786b0bd01ced7fcdbf3b033d68db2f7c61b2 (git) before 9b01ada580ee84fb319e7ecb5fb5b1f54a9eb799
affected

b843786b0bd01ced7fcdbf3b033d68db2f7c61b2 (git) before 815c528b13f2bb9b3130c13bedeabf2351a68129
affected

b843786b0bd01ced7fcdbf3b033d68db2f7c61b2 (git) before 152c1339dc13ad46f1b136e8693de15980750835
affected

Default status
affected

6.12
affected

Any version before 6.12
unaffected

6.12.42 (semver)
unaffected

6.15.10 (semver)
unaffected

6.16.1 (semver)
unaffected

6.17 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/91b370800b3f2b3dda244c0ab06719c4971190a5

git.kernel.org/...c/9b01ada580ee84fb319e7ecb5fb5b1f54a9eb799

git.kernel.org/...c/815c528b13f2bb9b3130c13bedeabf2351a68129

git.kernel.org/...c/152c1339dc13ad46f1b136e8693de15980750835

cve.org (CVE-2025-39727)

nvd.nist.gov (CVE-2025-39727)

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