Linux Kernel LoongArch VM Protection Map Bug CVE-2025-71228
CVE-2025-71228 Published on February 18, 2026
LoongArch: Set correct protection_map[] for VM_NONE/VM_SHARED
In the Linux kernel, the following vulnerability has been resolved:
LoongArch: Set correct protection_map[] for VM_NONE/VM_SHARED
For 32BIT platform _PAGE_PROTNONE is 0, so set a VMA to be VM_NONE or
VM_SHARED will make pages non-present, then cause Oops with kernel page
fault.
Fix it by set correct protection_map[] for VM_NONE/VM_SHARED, replacing
_PAGE_PROTNONE with _PAGE_PRESENT.
Products Associated with CVE-2025-71228
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Affected Versions
Linux:- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 046303283d02c9732a778ccdeea433a899c78cbd is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 5fbdf95d2575ec53fd4a5c18e789b4d54a0281fe is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 380d7c1af4bd3e797692f5410ab374a98e766cd4 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below 9531210f348aa78e260a9e5b0d1a6f7e7aa329e6 is affected.
- Version 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 and below d5be446948b379f1d1a8e7bc6656d13f44c5c7b1 is affected.
- Version 6.1.163, <= 6.1.* is unaffected.
- Version 6.6.124, <= 6.6.* is unaffected.
- Version 6.12.70, <= 6.12.* is unaffected.
- Version 6.18.10, <= 6.18.* is unaffected.
- Version 6.19, <= * is unaffected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.