CVE-2026-43352i3c: mipi-i3c-hci: Correct RING_CTRL_ABORT handling in DMA dequeue
Updated under an hour ago ()
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In the Linux kernel, the following vulnerability has been resolved: i3c: mipi-i3c-hci: Correct RING_CTRL_ABORT handling in DMA dequeue The logic used to abort the DMA ring contains several flaws: 1. The driver unconditionally issues a ring abort even when the ring has already stopped. 2. The completion used to wait for abort completion is never re-initialized, resulting in incorrect wait behavior. 3. The abort sequence unintentionally clears RING_CTRL_ENABLE, which resets hardware ring pointers and disrupts the controller state. 4. If the ring is already stopped, the abort operation should be considered successful without attempting further action. Fix the abort handling by checking whether the ring is running before issuing an abort, re-initializing the completion when needed, ensuring that RING_CTRL_ENABLE remains asserted during abort, and treating an already stopped ring as a successful condition.
- CVSS
- 7.8 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 21, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 9ad9a52cce2828d932ae9495181e3d6414f72c07 builds before 04b2853fdbb2ec9d03ece45da3c830396647120f; from 9ad9a52cce2828d932ae9495181e3d6414f72c07 before 55a0b47a372245f7667e0a4ba5c6f2a4c7a889a6; 9ad9a52cce2828d932ae9495181e3d6414f72c07 builds before 003df94bcc9227e8e930abd03ac7f63ac10033dc; from 9ad9a52cce2828d932ae9495181e3d6414f72c07 before 5549611888f5ca2db5e8e692b57f30626ddf9898; from 9ad9a52cce2828d932ae9495181e3d6414f72c07 before b795e68bf3073d67bebbb5a44d93f49efc5b8cc7 | CNA record |
linux linux_kernel linux:linux_kernel | from 5.11 before 6.18.19; from 6.19 before 6.19.9; 7.0; 7.0; 7.0 | NVD |
References
- https://git.kernel.org/stable/c/04b2853fdbb2ec9d03ece45da3c830396647120f
- https://git.kernel.org/stable/c/55a0b47a372245f7667e0a4ba5c6f2a4c7a889a6
- https://git.kernel.org/stable/c/003df94bcc9227e8e930abd03ac7f63ac10033dcpatch
- https://git.kernel.org/stable/c/5549611888f5ca2db5e8e692b57f30626ddf9898patch
- https://git.kernel.org/stable/c/b795e68bf3073d67bebbb5a44d93f49efc5b8cc7patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.