PT-2026-43718 · Linux+3 · Linux+129
Published
2026-05-27
·
Updated
2026-05-29
·
CVE-2026-45851
None
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Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
The
reserve unaccepted() function incorrectly calculates the size of the memblock reservation for the unaccepted memory table. It aligns the table size but fails to account for instances where the starting physical address efi.unaccepted is not page-aligned. If the table starts at an offset within a page and ends in a subsequent page not covered by the aligned size, the end of the table remains unreserved. This can result in the table being overwritten or becoming inaccessible, leading to a kernel panic in the accept memory() function. This issue was observed during the startup of Intel TDX VMs with specific memory sizes, such as those exceeding 64GB.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
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Related Identifiers
Affected Products
Linux
Linux-Allwinner-5.19
Linux-Aws
Linux-Aws-5.0
Linux-Aws-5.11
Linux-Aws-5.13
Linux-Aws-5.19
Linux-Aws-5.3
Linux-Aws-5.8
Linux-Aws-6.14
Linux-Aws-6.17
Linux-Aws-6.2
Linux-Aws-6.5
Linux-Aws-6.8
Linux-Aws-Fips
Linux-Azure
Linux-Azure-5.11
Linux-Azure-5.13
Linux-Azure-5.19
Linux-Azure-5.3
Linux-Azure-5.8
Linux-Azure-6.11
Linux-Azure-6.14
Linux-Azure-6.17
Linux-Azure-6.2
Linux-Azure-6.5
Linux-Azure-6.8
Linux-Azure-Edge
Linux-Azure-Fde
Linux-Azure-Fde-5.19
Linux-Azure-Fde-6.14
Linux-Azure-Fde-6.17
Linux-Azure-Fde-6.2
Linux-Azure-Fde-6.8
Linux-Azure-Fips
Linux-Azure-Nvidia
Linux-Azure-Nvidia-6.14
Linux-Bluefield
Linux-Fips
Linux-Gcp
Linux-Gcp-5.11
Linux-Gcp-5.13
Linux-Gcp-5.19
Linux-Gcp-5.3
Linux-Gcp-5.8
Linux-Gcp-6.11
Linux-Gcp-6.14
Linux-Gcp-6.17
Linux-Gcp-6.2
Linux-Gcp-6.5
Linux-Gcp-6.8
Linux-Gcp-Fips
Linux-Gke
Linux-Gke-4.15
Linux-Gkeop-5.15
Linux-Gke-5.4
Linux-Gkeop
Linux-Hwe
Linux-Hwe-5.11
Linux-Hwe-5.13
Linux-Hwe-5.19
Linux-Hwe-5.8
Linux-Hwe-6.11
Linux-Hwe-6.14
Linux-Hwe-6.17
Linux-Hwe-6.2
Linux-Hwe-6.5
Linux-Hwe-6.8
Linux-Hwe-Edge
Linux-Ibm
Linux-Ibm-6.8
Linux-Intel-5.13
Linux-Intel-Iot-Realtime
Linux-Lowlatency
Linux-Lowlatency-Hwe-5.19
Linux-Lowlatency-Hwe-6.11
Linux-Lowlatency-Hwe-6.2
Linux-Lowlatency-Hwe-6.5
Linux-Lowlatency-Hwe-6.8
Linux-Lts
Linux-Nvidia
Linux-Nvidia-6.11
Linux-Nvidia-6.17
Linux-Nvidia-6.2
Linux-Nvidia-6.5
Linux-Nvidia-6.8
Linux-Nvidia-Lowlatency
Linux-Nvidia-Tegra
Linux-Oem
Linux-Oem-5.10
Linux-Oem-5.13
Linux-Oem-5.14
Linux-Oem-5.17
Linux-Oem-5.6
Linux-Oem-6.0
Linux-Oem-6.1
Linux-Oem-6.11
Linux-Oem-6.14
Linux-Oem-6.17
Linux-Oem-6.5
Linux-Oem-6.8
Linux-Oracle
Linux-Oracle-5.0
Linux-Oracle-5.11
Linux-Oracle-5.13
Linux-Oracle-5.3
Linux-Oracle-5.8
Linux-Oracle-6.14
Linux-Oracle-6.17
Linux-Oracle-6.5
Linux-Oracle-6.8
Linux-Raspi
Linux-Raspi-Realtime
Linux-Raspi2
Linux-Realtime
Linux-Realtime-6.14
Linux-Realtime-6.17
Linux-Realtime-6.8
Linux-Riscv
Linux-Riscv-5.11
Linux-Riscv-5.19
Linux-Riscv-5.8
Linux-Riscv-6.14
Linux-Riscv-6.17
Linux-Riscv-6.5
Linux-Riscv-6.8
Linux-Starfive-5.19
Linux-Starfive-6.2
Linux-Starfive-6.5
Linux-Xilinx