CVE-2026-89993
dmaengine: dw-edma: Initialize IRQ data before requesting IRQs
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 16, 2026 |
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Affected Versions
Linux / Linux
e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf < b86280b12ccf33b68b309b7cb0e4476894dfe77c e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf < 07e50cef557def076418c67051a336e4c6bd50e1 e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf < 17ef63843c0fcbf1efdfbbfb0f5584a5ea2c91ba e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf < d232bc6cf4562132ef50644484dfd4b23a593295 e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf < fac202d73e7a649b7d4010325c6c6dcd9334fe65 e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf < d91fb6c0d10dad32929dc5c6850f89df34e1bfcd e63d79d1ffcd2201a2dbff1d7a1184b8f3ec74cf < 647217abea849d3d45f8cb0b8ee5b78d50f26985
Linux / Linux
5.3
References
git.kernel.org: https://git.kernel.org/stable/c/b86280b12ccf33b68b309b7cb0e4476894dfe77c git.kernel.org: https://git.kernel.org/stable/c/07e50cef557def076418c67051a336e4c6bd50e1 git.kernel.org: https://git.kernel.org/stable/c/17ef63843c0fcbf1efdfbbfb0f5584a5ea2c91ba git.kernel.org: https://git.kernel.org/stable/c/d232bc6cf4562132ef50644484dfd4b23a593295 git.kernel.org: https://git.kernel.org/stable/c/fac202d73e7a649b7d4010325c6c6dcd9334fe65 git.kernel.org: https://git.kernel.org/stable/c/d91fb6c0d10dad32929dc5c6850f89df34e1bfcd git.kernel.org: https://git.kernel.org/stable/c/647217abea849d3d45f8cb0b8ee5b78d50f26985