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CVE-2023-53394net/mlx5e: xsk: Fix crash on regular rq reactivation

Description

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: xsk: Fix crash on regular rq reactivation When the regular rq is reactivated after the XSK socket is closed it could be reading stale cqes which eventually corrupts the rq. This leads to no more traffic being received on the regular rq and a crash on the next close or deactivation of the rq. Kal Cuttler Conely reported this issue as a crash on the release path when the xdpsock sample program is stopped (killed) and restarted in sequence while traffic is running. This patch flushes all cqes when during the rq flush. The cqe flushing is done in the reset state of the rq. mlx5e_rq_to_ready code is moved into the flush function to allow for this.

Timeline

  1. ID reserved

    By Linux

  2. · 1 day later

    Published

  3. · 14 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-2023-53394, by who scored it
Scored byCVSSScoreVector
LinuxCNA (assigner)3.1High7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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)
0.15% · top 95% of all CVEs (12 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: High 7.8.

Affected products

  • Linux · Linux

    • affected 082a9edf12fef88400172e7d1b131d65a3ed492e – < ecf583abb07da326d5058dc6ba79dae58aa800d3
    • affected 082a9edf12fef88400172e7d1b131d65a3ed492e – < 02a84eb2af6bea7871cd34264fb27f141f005fd9
    • affected 082a9edf12fef88400172e7d1b131d65a3ed492e – < 39646d9bcd1a65d2396328026626859a1dab59d7
  • Linux · Linux

    • affected 6.1
    • unaffected < 6.1
    • unaffected 6.1.191 – ≤ 6.1.*
    • unaffected 6.4.10 – ≤ 6.4.*
    • unaffected 6.5 – ≤ *

References

References3

Sources

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

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Record last updated .