CVE-2026-43345net: ipa: fix event ring index not programmed for IPA v5.0+
- 7.5HighCVSS base score
- 0.35%Exploitation in 30 daysEPSS · top 71% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 7 days later
· 7 days later
Published
- 3 months later
· 3 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
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Analyzed | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.35% · top 71% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
- affected faf0678ec8a0aa9039d8b188d012206abd67dd5c – < ae8343a19ccb051d519dbb3a9082ddea9f0551d3
- affected faf0678ec8a0aa9039d8b188d012206abd67dd5c – < 2bf18b643c4656413f7cfd5615af60a6b4e261da
- affected faf0678ec8a0aa9039d8b188d012206abd67dd5c – < 2d2dc166d55148cfcf8ae67b415f8d6d110e6fca
- affected faf0678ec8a0aa9039d8b188d012206abd67dd5c – < 34c988bb04cbdf093d2134e179433da49ffcd044
- affected faf0678ec8a0aa9039d8b188d012206abd67dd5c – < 56007972c0b1e783ca714d6f1f4d6e66e531d21f
- affected 6.4
- unaffected < 6.4
- unaffected 6.6.136 – ≤ 6.6.*
- unaffected 6.12.83 – ≤ 6.12.*
- unaffected 6.18.24 – ≤ 6.18.*
- unaffected 6.19.14 – ≤ 6.19.*
- unaffected 7.0 – ≤ *
References
References5
- https://git.kernel.org/stable/c/ae8343a19ccb051d519dbb3a9082ddea9f0551d3 (opens in a new tab)
- https://git.kernel.org/stable/c/2bf18b643c4656413f7cfd5615af60a6b4e261da (opens in a new tab)
- https://git.kernel.org/stable/c/2d2dc166d55148cfcf8ae67b415f8d6d110e6fca (opens in a new tab)
- https://git.kernel.org/stable/c/34c988bb04cbdf093d2134e179433da49ffcd044 (opens in a new tab)
- https://git.kernel.org/stable/c/56007972c0b1e783ca714d6f1f4d6e66e531d21f (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-28629 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-43345)Record last updated .