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CVE-2026-53159

misc: fastrpc: fix DMA address corruption due to find_vma misuse

Published: 6/25/2026 Last updated: 7/18/2026 Reserved: 6/9/2026

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.

CNA assigner: Linux (416baaa9-dc9f-4396-8d5f-8c081fb06d67) Requested by: n/a

Metrics

Version Score Severity Vector String
3.1 8.8 High CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Opam packages affected (29)

albatross cdrom conf-bpftool conf-libbpf conf-linux-libc-dev core core_unix hvsock mirage-block-unix mm ocaml-probes ortools_solvers orun rawlink rawlink-eio rawlink-lwt restricted shell solo5 solo5-bindings-hvt solo5-bindings-spt solo5-cross-aarch64 solo5-kernel-ukvm tracy-client tuntap uring vhd-format vhd-format-lwt xapi-stdext-unix

Products affected (4)

Product Vendor Version
Linux Linux >= 6.5.1, < 12.1.2
Linux Linux PM3003A, PM6125, PM6150, PM6150A, PM6150L, PM6350, PM640A, PM640L, PM640P, PM7150A, PM7150L, PM7250, PM7250B, PM8008, PM8009, PM8150A, PM8150B, PM8150C, PM8150L, PM8250, PMI632, PMK8002, PMK8003, PMM8195AU, PMM855AU, PMR525, PMR735A, PMR735B, PMX55, QAT3516, QAT3518, QAT3519, QAT3522, QAT3550, QAT3555, QAT5515, QAT5516, QAT5522, QAT5533, QBT1500, QBT2000, QCA6390, QCA6391, QCA6421, QCA6426, QCA6431, QCA6436, QCA6574A, QCA6574AU, QCA6584AU, QCA6595, QCA6595AU, QCA6696, QCM4290, QCS4290, QDM2301, QDM2305, QDM2307, QDM2308, QDM2310, QDM3301, QDM5620, QDM5621, QDM5650, QDM5652, QDM5670, QDM5671, QDM5677, QDM5679, QET4101, QET5100, QET6100, QET6110, QFS2530, QFS2580, QLN4642, QLN4650, QLN5020, QLN5030, QLN5040, QPA2625, QPA4360, QPA5580, QPA5581, QPA6560, QPA8673, QPA8686, QPA8801, QPA8802, QPA8803, QPA8821, QPA8842, QPM4650, QPM5621, QPM5658, QPM5670, QPM5677, QPM5679, QPM6582, QPM6585, QPM8820, QPM8830, QPM8870, QPM8895, QSM7250, QSW8574, QTC410S, QTC800H, QTC801S, QTM525, SA6155P, SA8150P, SA815 ...[truncated*]
Linux Linux >= 5.0.0, < 5.0.9
Linux Linux >= 4.7.0, < 4.7.17

References (16)