CVE-2025-37926

ksmbd: fix use-after-free in ksmbd_session_rpc_open

CVE-2025-37926 is fixed in 36 products on 1 platform, first by DEBIAN-CVE-2025-37926, released May 20, 2025. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.8
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0057
47th percentile

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix use-after-free in ksmbd_session_rpc_open A UAF issue can occur due to a race condition between ksmbd_session_rpc_open() and __session_rpc_close(). Add rpc_lock to the session to protect it.

Where it's fixed

ProductFixed inFixReleased
Linux
kernel-uek · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-core · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-core · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-debug · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-debug · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-debug-core · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-debug-core · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-debug-devel · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-debug-devel · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-debug-modules · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-debug-modules · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-debug-modules-core · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-debug-modules-core · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-debug-modules-deprecated · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-debug-modules-deprecated · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-debug-modules-desktop · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-debug-modules-desktop · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-debug-modules-extra · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-debug-modules-extra · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-debug-modules-extra-netfilter · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-debug-modules-extra-netfilter · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-debug-modules-usb · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-debug-modules-usb · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-debug-modules-wireless · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-debug-modules-wireless · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-devel · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-devel · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-doc · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-doc · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-modules · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-modules · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-modules-core · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-modules-core · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-modules-deprecated · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-modules-deprecated · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-modules-desktop · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-modules-desktop · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-modules-extra · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-modules-extra · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-modules-extra-netfilter · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-modules-extra-netfilter · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-modules-usb · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-modules-usb · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-modules-wireless · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-modules-wireless · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-tools · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek-tools · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek64k · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek64k · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek64k-core · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek64k-core · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek64k-devel · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek64k-devel · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek64k-modules · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek64k-modules · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek64k-modules-core · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek64k-modules-core · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek64k-modules-deprecated · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek64k-modules-deprecated · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek64k-modules-desktop · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek64k-modules-desktop · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek64k-modules-extra · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek64k-modules-extra · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek64k-modules-extra-netfilter · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek64k-modules-extra-netfilter · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek64k-modules-usb · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek64k-modules-usb · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek64k-modules-wireless · ol 10 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
kernel-uek64k-modules-wireless · ol 9 0:6.12.0-101.33.4.3.el9uek ELSA-2025-20480 Jul 17, 2025
linux · Debian 12.15 (bookworm) 6.1.162-1 DEBIAN-CVE-2025-37926 May 20, 2025
linux · Debian 13.5 (trixie) 6.12.29-1 DEBIAN-CVE-2025-37926 May 20, 2025
linux · Debian 14 6.12.29-1 DEBIAN-CVE-2025-37926 May 20, 2025

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