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CVE-2022-50407

crypto: hisilicon/qm - increase the memory of local variables

Medium5.5EPSS 0.18%
Published
Updated
Reserved
Assigned by
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: hisilicon/qm - increase the memory of local variables Increase the buffer to prevent stack overflow by fuzz test. The maximum length of the qos configuration buffer is 256 bytes. Currently, the value of the 'val buffer' is only 32 bytes. The sscanf does not check the dest memory length. So the 'val buffer' may stack overflow.

Timeline

  1. ID reserved

    By Linux

  2. · 1 day later

    Published

  3. · 11 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2022-50407, by who scored it
Scored byCVSSScoreVector
CISA-ADPADP (enrichment)3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVDNVD · Modified3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.18% · top 93% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: no · Technical impact: partial
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.

Weakness

Affected products

  • Linux · Linux

    • affected 72b010dc33b9598883bc84d40b0a9d07c16f5e39 – < 34c4f8ad45b4ea814c7ecc3f23a2d292959d5a52
    • affected 72b010dc33b9598883bc84d40b0a9d07c16f5e39 – < fc521abb6ee4b8f06fdfc52646140dab6a2ed334
    • affected 72b010dc33b9598883bc84d40b0a9d07c16f5e39 – < 3efe90af4c0c46c58dba1b306de142827153d9c0

  • Linux · Linux

    • affected 5.14
    • unaffected < 5.14
    • unaffected 6.0.16 – ≤ 6.0.*
    • unaffected 6.1.2 – ≤ 6.1.*
    • unaffected 6.2 – ≤ *

References (3)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .