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In the Linux kernel, the following vulnerability has been resolved:
erofs: validate the extent length for uncompressed pclusters
syzkaller reported a KASAN use-after-free: https://syzkaller.appspot.com/bug?extid=2ae90e873e97f1faf6f2
The referenced fuzzed image actually has two issues: - m_pa == 0 as a non-inlined pcluster; - The logical length is longer than its physical length.
The first issue has already been addressed. This patch addresses the second issue by checking the extent length validity.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Dec 29, 2025 | Dec 29, 2025 |
| Huawei Euleros 2_0_sp13 | — | Upgrade python3-perfUpgrade kernel-toolsUpgrade kernelUpgrade bpftoolUpgrade kernel-tools-libsUpgrade kernel-abi-stablelists | Mar 10, 2026 | Mar 10, 2026 |
| Redhat_linux | — | No solution exists | Jul 17, 2026 | Dec 24, 2025 |
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