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CVE-2022-49202

Bluetooth: hci_uart: add missing NULL check in h5_enqueue

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_uart: add missing NULL check in h5_enqueue Syzbot hit general protection fault in __pm_runtime_resume(). The problem was in missing NULL check. hu->serdev can be NULL and we should not blindly pass &serdev->dev somewhere, since it will cause GPF.

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-2022-49202, 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)
0.26% · top 82% of all CVEs (12 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 d9dd833cf6d29695682ec7e7924c0d0992b906bc – < 7235485433d290367d60ae22fcdfc565e61d42ab
    • affected d9dd833cf6d29695682ec7e7924c0d0992b906bc – < e6b6c904c0f88588b6a3ace20e4c0d61eab124f8
    • affected d9dd833cf6d29695682ec7e7924c0d0992b906bc – < 8a3896c30f542439d36303183dc96f65df8cc528
    • affected d9dd833cf6d29695682ec7e7924c0d0992b906bc – < 32cb08e958696908a9aad5e49a78d74f7e32fffb
  • Linux · Linux

    • affected 5.15
    • unaffected < 5.15
    • unaffected 5.15.33 – ≤ 5.15.*
    • unaffected 5.16.19 – ≤ 5.16.*
    • unaffected 5.17.2 – ≤ 5.17.*
    • unaffected 5.18 – ≤ *

References

References4

Sources

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

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Record last updated .