CVE-2026-53159
HIGH severity · CVSS 8.8
8.8CVSS HIGH
Summary
In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: fix DMA address corruption due to find_vma misuse fastrpc_get_args() uses find_vma() to look up the VMA for a user-provided pointer and compute a DMA address offset. When the address falls in a gap before the returned VMA, (ptr & PAGE_MASK) - vma->vm_start underflows, corrupting the DMA address sent to the DSP. Replace find_vma() with vma_lookup(), which returns NULL when the address is not contained within any VMA.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactHigh
Integrity impactHigh
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix promptly. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/2d0f47e27c1fa718b29c69aa7c96a2c5161bc2c2 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/2d0f47e27c1fa718b29c69aa7c96a2c5161bc2c2Patch
- https://git.kernel.org/stable/c/464c6ad2aa16e1e1df9d559289199356493d1e00Patch
- https://git.kernel.org/stable/c/53e06f8a3c2b085c31bf1284e2ebcb8036e99625Patch
- https://git.kernel.org/stable/c/708c17b52c60fe7a57e73b495bdee50f58feb48cPatch
- https://git.kernel.org/stable/c/7ba7b30ddb04646d4d638f4d8c4718a304bbbdddPatch
- https://git.kernel.org/stable/c/d3e26df2e8eb361e6bef096b2fd565476a1f14c4Patch
- https://git.kernel.org/stable/c/d43afc412d439ffca1567e7ca8652be22f272b3bPatch
- https://git.kernel.org/stable/c/e69e306a4cccb40a73511350cb280825a556ce3cPatch