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Description

In the Linux kernel, the following vulnerability has been resolved: mm/mempolicy: fix memory leak in set_mempolicy_home_node system call When encountering any vma in the range with policy other than MPOL_BIND or MPOL_PREFERRED_MANY, an error is returned without issuing a mpol_put on the policy just allocated with mpol_dup(). This allows arbitrary users to leak kernel memory.

PUBLISHED Reserved 2025-09-17 | Published 2025-09-18 | Updated 2025-09-18 | Assigner Linux

Product status

Default status
unaffected

c6018b4b254971863bd0ad36bb5e7d0fa0f0ddb0 (git) before 4ca0eb6b2f3add8c5daefb726ce57dc95d103d33
affected

c6018b4b254971863bd0ad36bb5e7d0fa0f0ddb0 (git) before 0ce4cc6d269ddc448a825955b495f662f5d9e153
affected

c6018b4b254971863bd0ad36bb5e7d0fa0f0ddb0 (git) before 38ce7c9bdfc228c14d7621ba36d3eebedd9d4f76
affected

Default status
affected

5.17
affected

Any version before 5.17
unaffected

6.0.17 (semver)
unaffected

6.1.3 (semver)
unaffected

6.2 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/4ca0eb6b2f3add8c5daefb726ce57dc95d103d33

git.kernel.org/...c/0ce4cc6d269ddc448a825955b495f662f5d9e153

git.kernel.org/...c/38ce7c9bdfc228c14d7621ba36d3eebedd9d4f76

cve.org (CVE-2022-50391)

nvd.nist.gov (CVE-2022-50391)

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