CVE-2026-43353i3c: mipi-i3c-hci: Fix race in DMA ring dequeue
- 7.8HighCVSS base score
- 0.13%Exploitation in 30 daysEPSS · top 98% 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: i3c: mipi-i3c-hci: Fix race in DMA ring dequeue The HCI DMA dequeue path (hci_dma_dequeue_xfer()) may be invoked for multiple transfers that timeout around the same time. However, the function is not serialized and can race with itself. When a timeout occurs, hci_dma_dequeue_xfer() stops the ring, processes incomplete transfers, and then restarts the ring. If another timeout triggers a parallel call into the same function, the two instances may interfere with each other - stopping or restarting the ring at unexpected times. Add a mutex so that hci_dma_dequeue_xfer() is serialized with respect to itself.
Timeline
ID reserved
By Linux
- 7 days later
· 7 days later
Published
- 6 months later
· 6 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 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Modified | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.13% · top 98% of all CVEs (12 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 9ad9a52cce2828d932ae9495181e3d6414f72c07 – < d2fa9b855c7b42b34b2fb32731bf533952370384
- affected 9ad9a52cce2828d932ae9495181e3d6414f72c07 – < 73bb6b15f1fd71479ed12b314876f3ce5935b80a
- affected 9ad9a52cce2828d932ae9495181e3d6414f72c07 – < 16061383a9def977e4be908c7dcede9a8a4227fd
- affected 9ad9a52cce2828d932ae9495181e3d6414f72c07 – < b684b420a5bb0ea1b0e13abfdb8ce41c5266e62e
- affected 9ad9a52cce2828d932ae9495181e3d6414f72c07 – < 4faa1e9c67a2229f6749190aedaf88ce0391efd2
- affected 9ad9a52cce2828d932ae9495181e3d6414f72c07 – < 1dca8aee80eea76d2aae21265de5dd64f6ba0f09
- affected 5.11
- unaffected < 5.11
- unaffected 6.1.191 – ≤ 6.1.*
- unaffected 6.6.160 – ≤ 6.6.*
- unaffected 6.12.114 – ≤ 6.12.*
- unaffected 6.18.19 – ≤ 6.18.*
- unaffected 6.19.9 – ≤ 6.19.*
- unaffected 7.0 – ≤ *
References
References6
- https://git.kernel.org/stable/c/d2fa9b855c7b42b34b2fb32731bf533952370384 (opens in a new tab)
- https://git.kernel.org/stable/c/73bb6b15f1fd71479ed12b314876f3ce5935b80a (opens in a new tab)
- https://git.kernel.org/stable/c/16061383a9def977e4be908c7dcede9a8a4227fd (opens in a new tab)
- https://git.kernel.org/stable/c/b684b420a5bb0ea1b0e13abfdb8ce41c5266e62e (opens in a new tab)
- https://git.kernel.org/stable/c/4faa1e9c67a2229f6749190aedaf88ce0391efd2 (opens in a new tab)
- https://git.kernel.org/stable/c/1dca8aee80eea76d2aae21265de5dd64f6ba0f09 (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-2026-28659 (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-2026-43353)Record last updated .