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Review reviewHigh

CVE-2022-50507

Linux Linux, linux kernel

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Validate data run offset This adds sanity checks for data run offset. We should make sure data run offset is legit before trying to unpack them, otherwise we may encounter use-after-free or some unexpected memory access behaviors. [ 82.940342] BUG: KASAN: use-after-free in run_unpack+0x2e3/0x570 [ 82.941180] Read of size 1 at addr ffff888008a8487f by task mount/240 [ 82.941670] [ 82.942069] CPU: 0 PID: 240 Comm: mount Not tainted 5.19.0+ #15 [ 82.942482] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS...

CVSS
7.8
EPSS
0.15%
4.75% percentile
CISA KEV
Not listed
Published
2025.10.05
PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV
Exploit probability0.15%
Technical severityCVSS 7.8

Vulnerability overview

In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Validate data run offset This adds sanity checks for data run offset. We should make sure data run offset is legit before trying to unpack them, otherwise we may encounter use-after-free or some unexpected memory access behaviors. [ 82.940342] BUG: KASAN: use-after-free in run_unpack+0x2e3/0x570 [ 82.941180] Read of size 1 at addr ffff888008a8487f by task mount/240 [ 82.941670] [ 82.942069] CPU: 0 PID: 240 Comm: mount Not tainted 5.19.0+ #15 [ 82.942482] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS...

Affected product and versions

Product
Linux Linux, linux kernel
Affected versions
>= 4534a70b7056fd4b9a1c6db5a4ce3c98546b291e < de5e0955248ff90a2ae91e7f5c108392b52152d0, >= 4534a70b7056fd4b9a1c6db5a4ce3c98546b291e < e0455361d3068066a91fe18282b751925d7b5ee7, >= 4534a70b7056fd4b9a1c6db5a4ce3c98546b291e < 9173b89c16a603d73c434b695fe2a7a13491300f, >= 4534a70b7056fd4b9a1c6db5a4ce3c98546b291e < 6db620863f8528ed9a9aa5ad323b26554a17881d, >= 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:H/A:H
CWE
CWE-416