What’s Vulnerable › Vulnerabilities

CVE-2022-49166: ntfs: add sanity check on allocation size

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-02-26 · updated 2026-06-17

Description

In the Linux kernel, the following vulnerability has been resolved: ntfs: add sanity check on allocation size ntfs_read_inode_mount invokes ntfs_malloc_nofs with zero allocation size. It triggers one BUG in the __ntfs_malloc function. Fix this by adding sanity check on ni->attr_list_size.

Affected products

• Linux kernel: before 4.9.311; from 4.10 before 4.14.276; from 4.15 before 4.19.238; from 4.20 before 5.4.189; from 5.5 before 5.10.110; from 5.11 before 5.15.33 — fixed in 4.14.276, 4.19.238, 4.9.311, 5.10.110, 5.15.33, 5.16.19

How to fix

Upgrade to a fixed version: Linux kernel 4.14.276, 4.19.238, 4.9.311, 5.10.110. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/07793d2e55563124108762f4e5f811db92ffe02f
• https://git.kernel.org/stable/c/115fae2c1566eacc5ad2055f72521354612e72c3
• https://git.kernel.org/stable/c/21d490232f323ed4053eb9924615e6fea291f154
• https://git.kernel.org/stable/c/24ab2d4ef52c2dbb62a60844b87fc8872383407a
• https://git.kernel.org/stable/c/714fbf2647b1a33d914edd695d4da92029c7e7c0
• https://git.kernel.org/stable/c/b230f2d9441a34c7f483d39ab78519bcf73cc2e0
• https://git.kernel.org/stable/c/bd8d7daa0e53b184a2f3c6e0d47330780d0a0650
• https://git.kernel.org/stable/c/c641087d381a08363e5f14179bc6b0a23eca7c47
• https://git.kernel.org/stable/c/fe41ad8be036a3de3e4bdde709551aeb4de2fe7d

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