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Review reviewHigh

CVE-2022-50442

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Validate buffer length while parsing index indx_read is called when we have some NTFS directory operations that need more information from the index buffers. This adds a sanity check to make sure the returned index buffer length is legit, or we may have some out-of-bound memory accesses. [ 560.897595] BUG: KASAN: slab-out-of-bounds in hdr_find_e.isra.0+0x10c/0x320 [ 560.898321] Read of size 2 at addr ffff888009497238 by task exp/245 [ 560.898760] [ 560.899129] CPU: 0 PID: 245 Comm: exp Not tainted 6.0.0-rc6 #37 [...

CVSS
7.1
EPSS
0.16%
5.26% percentile
CISA KEV
Not listed
Published
2025.10.01
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.16%
Technical severityCVSS 7.1

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Validate buffer length while parsing index indx_read is called when we have some NTFS directory operations that need more information from the index buffers. This adds a sanity check to make sure the returned index buffer length is legit, or we may have some out-of-bound memory accesses. [ 560.897595] BUG: KASAN: slab-out-of-bounds in hdr_find_e.isra.0+0x10c/0x320 [ 560.898321] Read of size 2 at addr ffff888009497238 by task exp/245 [ 560.898760] [ 560.899129] CPU: 0 PID: 245 Comm: exp Not tainted 6.0.0-rc6 #37 [...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 4534a70b7056fd4b9a1c6db5a4ce3c98546b291e < 3cd9e5b41b83bb57ac3cf9888f9fef2a6ef8ed96, >= 4534a70b7056fd4b9a1c6db5a4ce3c98546b291e < b15374365c9d10445ea7d66cdf885457a0223fc2, >= 4534a70b7056fd4b9a1c6db5a4ce3c98546b291e < 3f6f75e8863f41c8b3dbfd9d99e3963aaca42601, >= 4534a70b7056fd4b9a1c6db5a4ce3c98546b291e < 4d42ecda239cc13738d6fd84d098a32e67b368b9, >= 5.15, >= 5.15 < 5.15.87, >= 5.16 < 6.0.17, >= 6.1 < 6.1.3
Fixed versions
5.15.87, 6.0.17, 6.1.3

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
  1. 1
    Identify

    Confirm that Linux Linux, linux kernel and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE
CWE-125