PT-2025-51639 · Git+3 · Kernel+90

Published

2025-12-16

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Updated

2026-01-15

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CVE-2025-68226

None

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Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)
Description A flaw exists in the Linux kernel's SMB client related to an incomplete backport in the cfids invalidation worker() function. A previous commit aimed to address a potential use-after-free condition in smb2 close cached fid(), but the backport was incomplete, missing a necessary kref put() call within cfids invalidation worker(). This missing call should have been converted to close cached dir().
Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Related Identifiers

CVE-2025-68226

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-6.2
Linux-Aws-6.5
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-6.2
Linux-Azure-6.5
Linux-Azure-Edge
Linux-Azure-Fde
Linux-Azure-Fde-5.19
Linux-Azure-Fde-6.2
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-6.2
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-6.2
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-Nvidia-6.11
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-6.5
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-6.5
Linux-Raspi
Linux-Raspi-Realtime
Linux-Raspi2
Linux-Realtime
Linux-Riscv
Linux-Riscv-5.11
Linux-Riscv-5.19
Linux-Riscv-5.8
Linux-Riscv-6.14
Linux-Riscv-6.5
Linux-Starfive-5.19
Linux-Starfive-6.2
Linux-Starfive-6.5
Linux-Xilinx