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CVE-2026-97507: media: dm1105: fix missing error check for dma_alloc_coherent

• 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: 2026-09-24 · updated 2026-10-03

Description

In the Linux kernel, the following vulnerability has been resolved: media: dm1105: fix missing error check for dma_alloc_coherent The return value of dm1105_dma_map(), which handles DMA memory allocation, is ignored in dm1105_hw_init(). If dma_alloc_coherent() fails, the driver will proceed using a NULL pointer for DMA transfers, leading to a kernel oops or invalid hardware access. Fix this by checking the return value and propagating -ENOMEM on failure.

Affected products

• Linux kernel: 2.6.28 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/07d6a76a17b550e94ca5cc0060ad6e77952390f2
• https://git.kernel.org/stable/c/3eaac9e02d8591d3c790db572ef1c8fa5a841fdb
• https://git.kernel.org/stable/c/3ff12d5ea9cb0d0fd89c24b69940f0b989bf6d2a
• https://git.kernel.org/stable/c/a2017c80dd7f3c409778ca0898d6e75ccab6d2f2
• https://git.kernel.org/stable/c/b6327023dcc7482156fc13cda6361ee573721b05
• https://git.kernel.org/stable/c/e96f91da5c83e4c1f1bebe1c58856d02cea4afd9
• https://git.kernel.org/stable/c/f3f135c4fac6194933b952e98a15dc05aa420956

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