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CVE-2022-49199RDMA/nldev: Prevent underflow in nldev_stat_set_counter_dynamic_doit()

Description

In the Linux kernel, the following vulnerability has been resolved: RDMA/nldev: Prevent underflow in nldev_stat_set_counter_dynamic_doit() This code checks "index" for an upper bound but it does not check for negatives. Change the type to unsigned to prevent underflows.

Timeline

  1. ID reserved

    By Linux

  2. Published

  3. · 15 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-2022-49199, by who scored it
Scored byCVSSScoreVector
NVDNVD · Analyzed3.1Medium5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS (exploitation in 30 days)
0.27% · top 81% of all CVEs (13 Nov 2026)
Loading the EPSS history…

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

Affected products

  • Linux · Linux

    • affected 3c3c1f1416392382faa0238e76a70d7810aab2ef – < f6dd8669b8299a3a536cd92a7069152a7704da1d
    • affected 3c3c1f1416392382faa0238e76a70d7810aab2ef – < 2a495ef04d5f42e6f00eb2bec1ee9075e3d5a771
    • affected 3c3c1f1416392382faa0238e76a70d7810aab2ef – < 87e0eacb176f9500c2063d140c0a1d7fa51ab8a5

  • Linux · Linux

    • affected 5.16
    • unaffected < 5.16
    • unaffected 5.16.19 – ≤ 5.16.*
    • unaffected 5.17.2 – ≤ 5.17.*
    • unaffected 5.18 – ≤ *

References

References3

Sources

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

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Record last updated .