CVE-2026-43345 (GCVE-0-2026-43345)

Vulnerability from cvelistv5 – Published: 2026-05-08 13:39 – Updated: 2026-08-05 12:27
VLAI
Title
net: ipa: fix event ring index not programmed for IPA v5.0+
Summary
In the Linux kernel, the following vulnerability has been resolved: net: ipa: fix event ring index not programmed for IPA v5.0+ For IPA v5.0+, the event ring index field moved from CH_C_CNTXT_0 to CH_C_CNTXT_1. The v5.0 register definition intended to define this field in the CH_C_CNTXT_1 fmask array but used the old identifier of ERINDEX instead of CH_ERINDEX. Without a valid event ring, GSI channels could never signal transfer completions. This caused gsi_channel_trans_quiesce() to block forever in wait_for_completion(). At least for IPA v5.2 this resolves an issue seen where runtime suspend, system suspend, and remoteproc stop all hanged forever. It also meant the IPA data path was completely non functional.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7018 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: faf0678ec8a0aa9039d8b188d012206abd67dd5c , < ae8343a19ccb051d519dbb3a9082ddea9f0551d3 (git)
Affected: faf0678ec8a0aa9039d8b188d012206abd67dd5c , < 2bf18b643c4656413f7cfd5615af60a6b4e261da (git)
Affected: faf0678ec8a0aa9039d8b188d012206abd67dd5c , < 2d2dc166d55148cfcf8ae67b415f8d6d110e6fca (git)
Affected: faf0678ec8a0aa9039d8b188d012206abd67dd5c , < 34c988bb04cbdf093d2134e179433da49ffcd044 (git)
Affected: faf0678ec8a0aa9039d8b188d012206abd67dd5c , < 56007972c0b1e783ca714d6f1f4d6e66e531d21f (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.4
Unaffected: 0 , < 6.4 (semver)
Unaffected: 6.6.136 , ≤ 6.6.* (semver)
Unaffected: 6.12.83 , ≤ 6.12.* (semver)
Unaffected: 6.18.24 , ≤ 6.18.* (semver)
Unaffected: 6.19.14 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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      "cve": "CVE-2026-43345",
      "id": "CVE-2026-43345",
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      "product_status:known_affected": "77",
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      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: ipa: fix event ring index not programmed for IPA v5.0+",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43345.json",
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      "id": "CVE-2026-43345",
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      "product_status:known_affected": "426",
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      "product_status:recommended": "310",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-43345",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/2026/cve-2026-43345.json",
      "version": "20"
    }
  }
}



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  • 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.
Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

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How durations are calculated

Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.

Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.

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