🛡️ UBUNTU-CVE-2025-22039
⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix overflow in dacloffset bounds check The dacloffset field was originally typed as int and used in an unchecked addition, which could overflow and bypass the existing bounds check in both smb_check_perm_dacl() and smb_inherit_dacl(). This could result in out-of-bounds memory access and a kernel crash when dereferencing the DACL pointer. This patch converts dacloffset to unsigned int and uses check_add_overflow() to validate access to the DACL.

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2025-04-16
Updated 2026-06-15
Modified 2026-06-08
Fix URL N/A

Affected Packages

Software From version Fixed in
linux 6.8.0-86.87
linux-allwinner-5.19
linux-aws 6.8.0-1041.43
linux-aws-5.0
linux-aws-5.11
linux-aws-5.13
linux-aws-5.15
linux-aws-5.19
linux-aws-5.3
linux-aws-5.4
linux-aws-5.8
linux-aws-6.2
linux-aws-6.5
linux-aws-6.8 6.8.0-1041.43~22.04.1
linux-aws-fips 6.8.0-1041.43+fips1
linux-aws-hwe
linux-azure 6.8.0-1041.47
linux-azure-4.15
linux-azure-5.11
linux-azure-5.13
linux-azure-5.15
linux-azure-5.19
linux-azure-5.3
linux-azure-5.4
linux-azure-5.8
linux-azure-6.11 6.11.0-1018.18~24.04.1
linux-azure-6.2
linux-azure-6.5
linux-azure-6.8 6.8.0-1041.47~22.04.1
linux-azure-edge
linux-azure-fde
linux-azure-fde-5.15
linux-azure-fde-5.19
linux-azure-fde-6.17
linux-azure-fde-6.2
linux-azure-fips 6.8.0-1044.50+fips1
linux-azure-nvidia 6.8.0-1029.32
linux-bluefield
linux-fips 6.8.0-86.87+fips1
linux-gcp 6.8.0-1042.45
linux-gcp-4.15
linux-gcp-5.11
linux-gcp-5.13
linux-gcp-5.15
linux-gcp-5.19
linux-gcp-5.3
linux-gcp-5.4
linux-gcp-5.8
linux-gcp-6.11 6.11.0-1016.16~24.04.1
linux-gcp-6.2
linux-gcp-6.5
linux-gcp-6.8 6.8.0-1042.45~22.04.1
linux-gcp-fips 6.8.0-1042.45+fips1
linux-gke 6.8.0-1038.43
linux-gke-4.15
linux-gke-5.15
linux-gke-5.4
linux-gkeop 6.8.0-1025.28
linux-gkeop-5.15
linux-gkeop-5.4
linux-hwe
linux-hwe-5.11
linux-hwe-5.13
linux-hwe-5.15
linux-hwe-5.19
linux-hwe-5.4
linux-hwe-5.8
linux-hwe-6.11 6.11.0-28.28~24.04.1
linux-hwe-6.2
linux-hwe-6.5
linux-hwe-6.8 6.8.0-86.87~22.04.1
linux-hwe-edge
linux-ibm 6.8.0-1039.39
linux-ibm-5.15
linux-ibm-5.4
linux-ibm-6.8 6.8.0-1039.39~22.04.1
linux-intel
linux-intel-5.13
linux-intel-iot-realtime
linux-intel-iotg
linux-intel-iotg-5.15
linux-iot
linux-kvm
linux-lowlatency 6.8.0-86.87.1
linux-lowlatency-hwe-5.15
linux-lowlatency-hwe-5.19
linux-lowlatency-hwe-6.11 6.11.0-1015.16~24.04.2
linux-lowlatency-hwe-6.2
linux-lowlatency-hwe-6.5
linux-lowlatency-hwe-6.8 6.8.0-86.87.1~22.04.1
linux-lts-xenial
linux-nvidia 6.8.0-1041.44
linux-nvidia-6.11 6.11.0-1012.12
linux-nvidia-6.2
linux-nvidia-6.5
linux-nvidia-6.8 6.8.0-1041.44~22.04.2
linux-nvidia-lowlatency 6.8.0-1041.44.1
linux-nvidia-tegra 6.8.0-1012.12
linux-nvidia-tegra-5.15
linux-nvidia-tegra-igx
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 6.11.0-1024.24
linux-oem-6.5
linux-oem-6.8
linux-oracle 6.8.0-1038.39
linux-oracle-5.0
linux-oracle-5.11
linux-oracle-5.13
linux-oracle-5.15
linux-oracle-5.3
linux-oracle-5.4
linux-oracle-5.8
linux-oracle-6.5
linux-oracle-6.8 6.8.0-1038.39~22.04.1
linux-raspi 6.8.0-1041.45
linux-raspi-5.4
linux-raspi-realtime 6.8.0-2032.33
linux-raspi2
linux-realtime 6.8.1-1036.37
linux-realtime-6.8 6.8.1-1036.37~22.04.1
linux-riscv
linux-riscv-5.11
linux-riscv-5.15
linux-riscv-5.19
linux-riscv-5.8
linux-riscv-6.5
linux-riscv-6.8 6.8.0-86.87~22.04.1
linux-starfive-5.19
linux-starfive-6.2
linux-starfive-6.5
linux-xilinx 6.8.0-1018.19
linux-xilinx-zynqmp

References

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