CVE-2026-46249 (GCVE-0-2026-46249)

Vulnerability from cvelistv5 – Published: 2026-06-03 15:49 – Updated: 2026-06-03 15:49
VLAI
Title
octeontx2-af: Fix PF driver crash with kexec kernel booting
Summary
In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: Fix PF driver crash with kexec kernel booting During a kexec reboot the hardware is not power-cycled, so AF state from the old kernel can persist into the new kernel. When AF and PF drivers are built as modules, the PF driver may probe before AF reinitializes the hardware. The PF driver treats the RVUM block revision as an indication that AF initialization is complete. If this value is left uncleared at shutdown, PF may incorrectly assume AF is ready and access stale hardware state, leading to a crash. Clear the RVUM block revision during AF shutdown to avoid PF mis-detecting AF readiness after kexec.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 54494aa5d1e68945dc79feb7c8461cd382e11d8a , < b7605b9301abc18fbbf2b0e23fdd281fc768955d (git)
Affected: 54494aa5d1e68945dc79feb7c8461cd382e11d8a , < 9769a09afda20a006b528b9e723effcae45965b2 (git)
Affected: 54494aa5d1e68945dc79feb7c8461cd382e11d8a , < 57821d1436ba1c6a6973aa32d54166fdec35558c (git)
Affected: 54494aa5d1e68945dc79feb7c8461cd382e11d8a , < 8b5ed7c5417b7013d35b6f2507dab739013ba1a9 (git)
Affected: 54494aa5d1e68945dc79feb7c8461cd382e11d8a , < 7d56ba306e93d04696718963fb4cda2883ee7585 (git)
Affected: 54494aa5d1e68945dc79feb7c8461cd382e11d8a , < 9c3398e5b3a914b74276d44ab54c49123b89c61a (git)
Affected: 54494aa5d1e68945dc79feb7c8461cd382e11d8a , < 1370736836a18b5e0cd74bcc9cffe11d21f1fe79 (git)
Affected: 54494aa5d1e68945dc79feb7c8461cd382e11d8a , < 2d2d574309e3ae84ee794869a5da8b4c38753a94 (git)
Create a notification for this product.
Linux Linux Affected: 4.20
Unaffected: 0 , < 4.20 (semver)
Unaffected: 5.10.252 , ≤ 5.10.* (semver)
Unaffected: 5.15.202 , ≤ 5.15.* (semver)
Unaffected: 6.1.165 , ≤ 6.1.* (semver)
Unaffected: 6.6.128 , ≤ 6.6.* (semver)
Unaffected: 6.12.75 , ≤ 6.12.* (semver)
Unaffected: 6.18.14 , ≤ 6.18.* (semver)
Unaffected: 6.19.4 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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Si este valor se deja sin borrar al apagar, PF puede asumir incorrectamente que AF est\u00e1 listo y acceder a un estado de hardware obsoleto, lo que lleva a una ca\u00edda.\\n\\nBorrar la revisi\u00f3n del bloque RVUM durante el apagado de AF para evitar que PF detecte incorrectamente la disponibilidad de AF despu\u00e9s de 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    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-28T07:41:46+00:00",
      "cve": "CVE-2026-46249",
      "id": "CVE-2026-46249",
      "initial_release_date": "2026-06-03T00:00:00+00:00",
      "product_status:known_affected": "184",
      "product_status:known_not_affected": "90",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: octeontx2-af: Fix PF driver crash with kexec kernel booting",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46249.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-21T23:53:47Z",
      "cve": "CVE-2026-46249",
      "id": "CVE-2026-46249",
      "initial_release_date": "2026-06-04T02:21:56Z",
      "product_status:known_affected": "173",
      "product_status:known_not_affected": "65",
      "product_status:recommended": "98",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-46249",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-46249.json",
      "version": "5"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.