CVE-2026-53159

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.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux80f3afd72bd4149c57daf852905476b43bb47647 < d43afc412d439ffca1567e7ca8652be22f272b3baffected
LinuxLinux80f3afd72bd4149c57daf852905476b43bb47647 < 2d0f47e27c1fa718b29c69aa7c96a2c5161bc2c2affected
LinuxLinux80f3afd72bd4149c57daf852905476b43bb47647 < 708c17b52c60fe7a57e73b495bdee50f58feb48caffected
LinuxLinux80f3afd72bd4149c57daf852905476b43bb47647 < d3e26df2e8eb361e6bef096b2fd565476a1f14c4affected
LinuxLinux80f3afd72bd4149c57daf852905476b43bb47647 < e69e306a4cccb40a73511350cb280825a556ce3caffected
LinuxLinux80f3afd72bd4149c57daf852905476b43bb47647 < 53e06f8a3c2b085c31bf1284e2ebcb8036e99625affected
LinuxLinux80f3afd72bd4149c57daf852905476b43bb47647 < 7ba7b30ddb04646d4d638f4d8c4718a304bbbdddaffected
LinuxLinux80f3afd72bd4149c57daf852905476b43bb47647 < 464c6ad2aa16e1e1df9d559289199356493d1e00affected
LinuxLinux954edc466128479872731d06f026d0e71840d153affected
LinuxLinux5.1.6 < 5.2affected
LinuxLinux5.2affected
LinuxLinux0 < 5.2unaffected
LinuxLinux5.10.260 <= 5.10.*unaffected
LinuxLinux5.15.210 <= 5.15.*unaffected
LinuxLinux6.1.176 <= 6.1.*unaffected
LinuxLinux6.6.143 <= 6.6.*unaffected
LinuxLinux6.12.94 <= 6.12.*unaffected
LinuxLinux6.18.36 <= 6.18.*unaffected
LinuxLinux7.0.13 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References