What’s Vulnerable › Vulnerabilities

CVE-2026-98416: dmaengine: ti: k3-udma-glue: fix NULL dereference in k3_udma_glue_release_rx_chn()

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-14 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: dmaengine: ti: k3-udma-glue: fix NULL dereference in k3_udma_glue_release_rx_chn() If devm_kcalloc() for rx_chn->flows fails in a channel request function, the error path calls k3_udma_glue_release_rx_chn(), which dereferences the NULL rx_chn->flows pointer in k3_udma_glue_release_rx_flow(). Skip the flow release loop in k3_udma_glue_release_rx_chn() when rx_chn->flows is not allocated. Found by Linux Verification Center (linuxtesting.org) with SVACE.

Affected products

• Linux kernel: 5.6 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux kernel 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0294b6dd515256c03ea2dbf508ddd3826d788579
• https://git.kernel.org/stable/c/5a6cb4d387eebf7d32a6ed3fcd39f94bf38bd134
• https://git.kernel.org/stable/c/5b2d92b7b177226e1dca2e80dc8369131276c2a4
• https://git.kernel.org/stable/c/89f5414660724bb562db4ac74665da16d4a57d99
• https://git.kernel.org/stable/c/967612574c542dec71f820a6eb16dea80dd187a1
• https://git.kernel.org/stable/c/b14e6c52872556de2d6c137531e0ce85085c10ed
• https://git.kernel.org/stable/c/b2985956e06632939bee47cee13bccd78ad7c3a1
• https://git.kernel.org/stable/c/b51ed7885ab0e8ecad765adc13b465cb1498cdc9

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