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CVE-2022-49704

9p: fix fid refcount leak in v9fs_vfs_get_link

Medium5.5EPSS 0.26%
Published
Updated
Reserved
Assigned by
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: 9p: fix fid refcount leak in v9fs_vfs_get_link we check for protocol version later than required, after a fid has been obtained. Just move the version check earlier.

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-2022-49704, 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)
0.26% · top 82% 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

  • CWE-noinfo Not enough information

Affected products

  • Linux · Linux

    • affected 6636b6dcc3db2258cd0585b8078c1c225c4b6dde – < f0126bcaee81dabc1926012126aa74caa03a4c6e
    • affected 6636b6dcc3db2258cd0585b8078c1c225c4b6dde – < e7b6d622bd812013eb39c8f4cd65b7ee8ede1e02
    • affected 6636b6dcc3db2258cd0585b8078c1c225c4b6dde – < e5690f263208c5abce7451370b7786eb25b405eb

  • Linux · Linux

    • affected 5.11
    • unaffected < 5.11
    • unaffected 5.15.51 – ≤ 5.15.*
    • unaffected 5.18.8 – ≤ 5.18.*
    • unaffected 5.19 – ≤ *

References (3)

Sources

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

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Record last updated .