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The vulnerability of the `cifs_signal_cifsd_for_reconnect()` function in the `fs/smb/client/cifsglob.h` and `fs/smb/client/connect.c` files, which are part of the SMB client support in Linux kernel, allows a hacker to cause a service failure.

🗓️ 11 Aug 2025 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec
 bdu_fstec🔗 bdu.fstec.ru👁 9 Views

Vulnerability in cifs_signal_cifsd_for_reconnect in Linux SMB client due to improper locking allows service failure.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
Tenable Nessus		Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2025-1130)
4 Aug 202500:00
–nessus
Tenable Nessus		Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2025-1144)
9 Aug 202500:00
–nessus
Tenable Nessus		Azure Linux 3.0 Security Update: kernel (CVE-2025-38244)
22 Jan 202600:00
–nessus
Tenable Nessus		openSUSE 16 Security Update : kernel (openSUSE-SU-2025-20081-1)
2 Dec 202500:00
–nessus
Tenable Nessus		Oracle Linux 8 : kernel (ELSA-2025-19447)
4 Nov 202500:00
–nessus
Tenable Nessus		Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2025-20551)
9 Sep 202500:00
–nessus
Tenable Nessus		SUSE SLES15 Security Update : kernel (SUSE-SU-2025:02853-1)
19 Aug 202500:00
–nessus
Tenable Nessus		SUSE SLES15: kernel-coco / kernel-coco-devel / kernel-coco_debug / etc (SUSE-SU-2025:02923-1)
21 Aug 202500:00
–nessus
Tenable Nessus		SUSE SLES15: cluster-md-kmp-azure / dlm-kmp-azure / gfs2-kmp-azure / etc (SUSE-SU-2025:02969-1)
26 Aug 202500:00
–nessus
Tenable Nessus		SUSE SLED15: cluster-md-kmp-64kb / cluster-md-kmp-default / dlm-kmp-64kb / etc (SUSE-SU-2025:02996-1)
28 Aug 202500:00
–nessus
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17 Feb 2026 00:00Current
6.1Medium risk
Vulners AI Score6.1
CVSS 24.9
CVSS 36.2
EPSS0.00107
cifs_signal_cifsd_for_reconnectimproper lockinglinux kernelservice disruption
9