CVE-2026-89993
Description
In the Linux kernel, the following vulnerability has been resolved: dmaengine: dw-edma: Initialize IRQ data before requesting IRQs dw_edma_irq_request() passes struct dw_edma_irq to request_irq() before dw_edma_channel_setup() fills the back pointer. A shared interrupt can therefore enter the handler with dw_irq->dw still NULL, leading to a NULL pointer dereference. Set the back pointer before installing each handler.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://git.kernel.org/stable/c/07e50cef557def076418c67051a336e4c6bd50e1
- https://git.kernel.org/stable/c/17ef63843c0fcbf1efdfbbfb0f5584a5ea2c91ba
- https://git.kernel.org/stable/c/647217abea849d3d45f8cb0b8ee5b78d50f26985
- https://git.kernel.org/stable/c/b86280b12ccf33b68b309b7cb0e4476894dfe77c
- https://git.kernel.org/stable/c/d232bc6cf4562132ef50644484dfd4b23a593295
- https://git.kernel.org/stable/c/d91fb6c0d10dad32929dc5c6850f89df34e1bfcd
- https://git.kernel.org/stable/c/fac202d73e7a649b7d4010325c6c6dcd9334fe65
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.