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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf affected < b86280b12ccf33b68b309b7cb0e4476894dfe77c
e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf affected < 07e50cef557def076418c67051a336e4c6bd50e1
e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf affected < 17ef63843c0fcbf1efdfbbfb0f5584a5ea2c91ba
e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf affected < d232bc6cf4562132ef50644484dfd4b23a593295
e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf affected < fac202d73e7a649b7d4010325c6c6dcd9334fe65
e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf affected < d91fb6c0d10dad32929dc5c6850f89df34e1bfcd
e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf affected < 647217abea849d3d45f8cb0b8ee5b78d50f26985
Linux Linux affected
Version Status Constraints
5.3 affected —
0 unaffected < 5.3
5.15.221 unaffected ≤ 5.15.*
6.1.188 unaffected ≤ 6.1.*
6.6.157 unaffected ≤ 6.6.*
6.12.110 unaffected ≤ 6.12.*
6.18.51 unaffected ≤ 6.18.*
7.2.5 unaffected ≤ 7.2.*
7.3-rc1 unaffected ≤ *

No data.

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/07e50cef557def076418c67051a336e4c6bd50e1 cve-icon cve-icon
https://git.kernel.org/stable/c/17ef63843c0fcbf1efdfbbfb0f5584a5ea2c91ba cve-icon cve-icon
https://git.kernel.org/stable/c/647217abea849d3d45f8cb0b8ee5b78d50f26985 cve-icon cve-icon
https://git.kernel.org/stable/c/b86280b12ccf33b68b309b7cb0e4476894dfe77c cve-icon cve-icon
https://git.kernel.org/stable/c/d232bc6cf4562132ef50644484dfd4b23a593295 cve-icon cve-icon
https://git.kernel.org/stable/c/d91fb6c0d10dad32929dc5c6850f89df34e1bfcd cve-icon cve-icon
https://git.kernel.org/stable/c/fac202d73e7a649b7d4010325c6c6dcd9334fe65 cve-icon cve-icon
History

Wed, 16 Sep 2026 10:45:00 +0000

Type Values Removed Values Added
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.
Title dmaengine: dw-edma: Initialize IRQ data before requesting IRQs
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-09-16T10:33:06.611Z

Reserved: 2026-09-11T19:38:34.780Z

Link: CVE-2026-89993

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-09-16T11:17:10.470

Modified: 2026-09-16T11:17:10.470

Link: CVE-2026-89993

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.