dmaengine: dw-edma: Initialize IRQ data before requesting IRQs
Published Sep 16, 2026
No CVSS score
EPSS 0.21%
Description
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.
Affected products
-
Affected
- ≥ , <
- ≥ , <
- ≥ , <
- ≥ , <
- ≥ , <
- ≥ , <
- ≥ , <
-
Affected
- 5.3
Unaffected
- ≥ 0, < 5.3
- ≥ 5.15.221, ≤ 5.15.*
- ≥ 6.1.188, ≤ 6.1.*
- ≥ 6.12.110, ≤ 6.12.*
- ≥ 6.18.51, ≤ 6.18.*
- ≥ 6.6.157, ≤ 6.6.*
- ≥ 7.2.5, ≤ 7.2.*
- 7.3-rc1
Default status is the baseline for the product. Each version can override it (patched versions can be marked unaffected).
No data.
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Weaknesses (0)
No CWE recorded.
References (8)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-80601 Advisory
- 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
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner Linux
Published Sep 16, 2026
Updated Sep 16, 2026
Reserved Sep 11, 2026
Link CVE-2026-89993
CISA Vulnrichment
No data
Red Hat
No data
GitHub
No data