PT-2026-43770 · Git+4 · Kernel+109
CVE-2026-45903
·
Published
2026-05-27
·
Updated
2026-06-24
CVSS v3.1
7.1
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
An issue exists in the BPF verifier where it relies on access type flags in helper function prototypes for memory access optimizations. Several helper functions using
ARG PTR TO MEM lack the necessary MEM RDONLY or MEM WRITE flags. This causes the verifier to incorrectly assume buffer contents remain unchanged after a helper call, potentially optimizing away subsequent reads and leading to correctness issues. Specifically, the bpf get stack proto raw tp() function incorrectly used MEM RDONLY despite writing to the buffer; it requires ARG PTR TO UNINIT MEM to correctly indicate write access to potentially uninitialized memory.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Out of bounds Read
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Weakness Enumeration
Related Identifiers
Affected Products
Kernel
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-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-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-Nvidia-6.14
Linux-Bluefield
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-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-Edge
Linux-Intel-5.13
Linux-Intel-Iot-Realtime
Linux-Lowlatency-Hwe-5.19
Linux-Lowlatency-Hwe-6.11
Linux-Lowlatency-Hwe-6.2
Linux-Lowlatency-Hwe-6.5
Linux-Lts
Linux-Nvidia-6.11
Linux-Nvidia-6.17
Linux-Nvidia-6.2
Linux-Nvidia-6.5
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-Raspi
Linux-Raspi-Realtime
Linux-Raspi2
Linux-Realtime
Linux-Realtime-6.14
Linux-Realtime-6.17
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-Starfive-5.19
Linux-Starfive-6.2
Linux-Starfive-6.5
Linux Kernel