CVE-2026-53133: falha de alta gravidade em Linux
RDMA/umem: Fix truncation for block sizes >= 4G
Publicada em · Atualizada em
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 7.8epss 0.1%
probabilidade de exploração
0.1%top 98% das CVEs
exploração observada
nãonenhuma fonte reporta
In the Linux kernel, the following vulnerability has been resolved:
RDMA/umem: Fix truncation for block sizes >= 4G
When the iommu is used the linearization of the mapping can give a single
block that is very large split across multiple SG entries.
When __rdma_block_iter_next() reassembles the split SG entries it is
overflowing the 32 bit stack values and computed the wrong DMA addresses
for blocks after the truncation.
Use the right types to hold DMA addresses.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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Linux · LinuxCVEs relacionadas — Linux
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Referências
https://git.kernel.org/stable/c/15fe76e23615f502d051ef0768f86babaf08746chttps://git.kernel.org/stable/c/2ff4b7817e5b78070c30f5fb5e678e452a2628b3https://git.kernel.org/stable/c/8fe0231adebe086c8a459c790944ac026cd99c6ehttps://git.kernel.org/stable/c/ac1aad8e1281534ce936c250f68084fc79c5469ehttps://git.kernel.org/stable/c/afd35fec9297195b759078745549c2671223f24fhttps://git.kernel.org/stable/c/baf8685bcf56dc1efb44b8f6a57c42516e549068https://git.kernel.org/stable/c/cc644d5608e3b0dadc970bd6e6aa26b91ea07d0fhttps://git.kernel.org/stable/c/dee2a49adeeb2a5e16a3fc858fa21b841c519802