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OpenAdvisories
Unscored CVE-2025-21660 EUVD-2025-2609GHSA-jj94-6v6v-cc35

ksmbd: fix unexpectedly changed path in ksmbd_vfs_kern_path_locked

Published Jan 21, 2025 · Updated May 23, 2026 · Assigned by Linux

Vendor: Linux Product: Linux Package: linux Package: linux Package: linux-allwinner-5.19 Package: linux-aws Package: linux-aws-5.0 Package: linux-aws-5.11 Package: linux-aws-5.13 Package: linux-aws-5.19 Package: linux-aws-5.3 Package: linux-aws-5.8 Package: linux-aws-6.2 Package: linux-aws-6.5 Package: linux-aws-6.8 Package: linux-azure Package: linux-azure-5.11 Package: linux-azure-5.13 Package: linux-azure-5.19 Package: linux-azure-5.3 Package: linux-azure-5.8 Package: linux-azure-6.2 Package: linux-azure-6.5 Package: linux-azure-6.8 Package: linux-azure-edge Package: linux-azure-fde Package: linux-azure-fde-5.19 Package: linux-azure-fde-6.2 Package: linux-azure-nvidia Package: linux-gcp Package: linux-gcp-5.11 Package: linux-gcp-5.13 Package: linux-gcp-5.19 Package: linux-gcp-5.3 Package: linux-gcp-5.8 Package: linux-gcp-6.2 Package: linux-gcp-6.5 Package: linux-gcp-6.8 Package: linux-gke Package: linux-gke-4.15 Package: linux-gke-5.15 Package: linux-gke-5.4 Package: linux-gkeop Package: linux-gkeop-5.15 Package: linux-gkeop-5.4 Package: linux-hwe Package: linux-hwe-5.11 Package: linux-hwe-5.13 Package: linux-hwe-5.19 Package: linux-hwe-5.8 Package: linux-hwe-6.11 Package: linux-hwe-6.2 Package: linux-hwe-6.5 Package: linux-hwe-6.8 Package: linux-hwe-edge Package: linux-ibm Package: linux-ibm-6.8 Package: linux-intel-5.13 Package: linux-intel-iot-realtime Package: linux-lowlatency Package: linux-lowlatency-hwe-5.19 Package: linux-lowlatency-hwe-6.2 Package: linux-lowlatency-hwe-6.5 Package: linux-lowlatency-hwe-6.8 Package: linux-nvidia Package: linux-nvidia-6.2 Package: linux-nvidia-6.5 Package: linux-nvidia-6.8 Package: linux-nvidia-lowlatency Package: linux-nvidia-tegra Package: linux-oem Package: linux-oem-5.10 Package: linux-oem-5.13 Package: linux-oem-5.14 Package: linux-oem-5.17 Package: linux-oem-5.6 Package: linux-oem-6.0 Package: linux-oem-6.1 Package: linux-oem-6.11 Package: linux-oem-6.5 Package: linux-oem-6.8 Package: linux-oracle Package: linux-oracle-5.0 Package: linux-oracle-5.11 Package: linux-oracle-5.13 Package: linux-oracle-5.3 Package: linux-oracle-5.8 Package: linux-oracle-6.5 Package: linux-oracle-6.8 Package: linux-raspi Package: linux-raspi-realtime Package: linux-raspi2 Package: linux-realtime Package: linux-realtime-6.8 Package: linux-riscv Package: linux-riscv-5.11 Package: linux-riscv-5.19 Package: linux-riscv-5.8 Package: linux-riscv-6.5 Package: linux-riscv-6.8 Package: linux-starfive-5.19 Package: linux-starfive-6.2 Package: linux-starfive-6.5 Platform: Linux Ecosystem: Debian Ecosystem: Ubuntu

Description

In the Linux kernel, the following vulnerability has been resolved:

ksmbd: fix unexpectedly changed path in ksmbd_vfs_kern_path_locked

When `ksmbd_vfs_kern_path_locked` met an error and it is not the last
entry, it will exit without restoring changed path buffer. But later this
buffer may be used as the filename for creation.

Affected products

VendorProductAffectedFixed
Linux Linux 6.1.113 – < 6.1.125, 6.6.54 – < 6.6.72, 6.10.13 – < 6.11, 6.11.2 – < 6.12, 6.12 6.1.125

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 linux 6.12.10-1 —
Debian 13 linux 6.12.10-1 —
Debian 12 linux 6.1.128-1 DSA-5860-1
Debian 11 linux-6.1 6.1.128-1~deb11u1 DLA-4076-1
ReleasePackageFixed inAdvisory
Ubuntu 24.04 LTS linux 6.8.0-60.63 USN-7513-1
Ubuntu 24.04 LTS linux-aws 6.8.0-1029.31 USN-7513-1
Ubuntu 24.04 LTS linux-azure 6.8.0-1029.34 USN-7513-3
Ubuntu 24.04 LTS linux-azure-nvidia 6.8.0-1016.17 USN-7522-1
Ubuntu 24.04 LTS linux-gcp 6.8.0-1030.32 USN-7515-2
Ubuntu 24.04 LTS linux-gke 6.8.0-1025.29 USN-7515-1
Ubuntu 24.04 LTS linux-gkeop 6.8.0-1012.14 USN-7515-2
Ubuntu 24.04 LTS linux-hwe-6.11 6.11.0-21.21~24.04.1 USN-7379-1
Ubuntu 24.04 LTS linux-ibm 6.8.0-1026.26 USN-7513-1
Ubuntu 24.04 LTS linux-lowlatency-hwe-6.11 6.11.0-1011.12~24.04.1 USN-7381-1
Ubuntu 24.04 LTS linux-nvidia 6.8.0-1028.31 USN-7514-1
Ubuntu 24.04 LTS linux-nvidia-lowlatency 6.8.0-1028.31.1 USN-7514-1
Ubuntu 24.04 LTS linux-nvidia-tegra 6.8.0-1008.8 —
Ubuntu 24.04 LTS linux-oem-6.11 6.11.0-1017.17 USN-7382-1
Ubuntu 24.04 LTS linux-oem-6.8 6.8.0-1028.28 USN-7513-3
Ubuntu 24.04 LTS linux-oracle 6.8.0-1026.27 USN-7513-1
Ubuntu 24.04 LTS linux-raspi 6.8.0-1028.32 USN-7524-1
Ubuntu 24.04 LTS linux-raspi-realtime No fix yet —
Ubuntu 24.04 LTS linux-riscv +1 6.8.0-60.63.1 USN-7513-1
Ubuntu 22.04 LTS linux-aws-6.8 6.8.0-1029.31~22.04.1 USN-7513-1
Ubuntu 22.04 LTS linux-azure-6.8 6.8.0-1029.34~22.04.1 USN-7513-3
Ubuntu 22.04 LTS linux-gcp-6.8 6.8.0-1030.32~22.04.1 USN-7515-2
Ubuntu 22.04 LTS linux-hwe-6.8 6.8.0-60.63~22.04.1 USN-7513-4
Ubuntu 22.04 LTS linux-ibm-6.8 6.8.0-1026.26~22.04.1 —
Ubuntu 22.04 LTS linux-lowlatency-hwe-6.8 6.8.0-60.63.1~22.04.1 USN-7513-1
Ubuntu 22.04 LTS linux-nvidia-6.8 6.8.0-1028.31~22.04.1 USN-7514-1
Ubuntu 22.04 LTS linux-oracle-6.8 6.8.0-1026.27~22.04.1 USN-7513-5
Ubuntu 22.04 LTS linux-riscv +32 No fix yet —
Ubuntu 22.04 LTS linux-riscv-6.8 6.8.0-62.65~22.04.1 —
Ubuntu 20.04 LTS linux-gke +28 No fix yet —
Ubuntu 18.04 LTS linux-gcp +14 No fix yet —
Ubuntu 16.04 LTS linux-hwe-edge No fix yet —
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro Realtime 24.04 LTS linux-raspi-realtime 6.8.0-2023.24 USN-7523-1
Ubuntu Pro Realtime 24.04 LTS linux-realtime 6.8.1-1022.23 USN-7513-2
Ubuntu Pro Realtime 22.04 LTS linux-realtime-6.8 6.8.1-1022.23~22.04.1 —

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 9 kernel-uek +34 6.12.0-101.33.4.3.el10uek ELSA-2025-20530, ELSA-2025-20480

Advisories 19

References