CVE-2026-90161
erofs: fix interlaced ztailpacking pclusters
CVSS Score
7.1
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: erofs: fix interlaced ztailpacking pclusters On-disk sizes of interlaced pclusters should be block-aligned, and ztailpacking interlaced pclusters should be invalid at all. Currently, mkfs.erofs won't generate any interlaced pcluster with ztailpacking enabled, so this doesn't affect any existing valid filesystems. However, crafted images can contain invalid interlaced ztailpacking pclusters, resulting in an out-of-bounds read from a kmap'd page and copying irrelevant kernel memory into userspace-visible page cache.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 17, 2026 |
| Last Updated | Oct 30, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
fdffc091e6f94602558bba712b51bc16f79fd6d5 < b634286a8628155557a4f473a9dbab18bb439a7b fdffc091e6f94602558bba712b51bc16f79fd6d5 < 795dca34a41545d377d19bc492b10bc789772410 fdffc091e6f94602558bba712b51bc16f79fd6d5 < cd59f91cbc1e715cb5dc65773ee22123d70cb8f2 fdffc091e6f94602558bba712b51bc16f79fd6d5 < ddb7ea4fd99bf6c4314d1dfca18aec6945ce8054 fdffc091e6f94602558bba712b51bc16f79fd6d5 < 451027c642e752420e1a04237db9ce7b35cee595 fdffc091e6f94602558bba712b51bc16f79fd6d5 < 862427ebb81d1f6abbf74d799790e1694b37b187 7d6ef8277e44c22f894d54d26ddb36c22d60712d 6.0.16 < 6.1
Linux / Linux
6.1
References
git.kernel.org: https://git.kernel.org/stable/c/b634286a8628155557a4f473a9dbab18bb439a7b git.kernel.org: https://git.kernel.org/stable/c/795dca34a41545d377d19bc492b10bc789772410 git.kernel.org: https://git.kernel.org/stable/c/cd59f91cbc1e715cb5dc65773ee22123d70cb8f2 git.kernel.org: https://git.kernel.org/stable/c/ddb7ea4fd99bf6c4314d1dfca18aec6945ce8054 git.kernel.org: https://git.kernel.org/stable/c/451027c642e752420e1a04237db9ce7b35cee595 git.kernel.org: https://git.kernel.org/stable/c/862427ebb81d1f6abbf74d799790e1694b37b187