Input validation error in Linux kernel - CVE-2025-38238

Vulnerability identifier: #VU112812

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-38238

CWE-ID: CWE-20

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to improper input validation within the fdls_send_fabric_abts(), fdls_fabric_timer_callback(), fdls_fdmi_timer_callback() and fdls_process_fdmi_abts_rsp() functions in drivers/scsi/fnic/fdls_disc.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
SUSE Linux Enterprise Real Time 15
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise Workstation Extension 15
SUSE Linux Enterprise High Availability Extension 15
SUSE Linux Enterprise Desktop 15
Legacy Module
SUSE Linux Enterprise Live Patching
Public Cloud Module
SUSE Real Time Module
Basesystem Module
Development Tools Module
Ubuntu
kernel-livepatch-6_4_0-150700_7_13-rt
kernel-livepatch-SLE15-SP7-RT_Update_3-debugsource
kernel-livepatch-6_4_0-150700_7_13-rt-debuginfo
kernel-livepatch-SLE15-SP7_Update_3-debugsource
kernel-livepatch-6_4_0-150700_53_11-default
kernel-livepatch-6_4_0-150700_53_11-default-debuginfo
kernel-rt-devel-debuginfo
dlm-kmp-rt
kernel-rt
kernel-devel-rt
kernel-source-rt
dlm-kmp-rt-debuginfo
kernel-rt-debugsource
gfs2-kmp-rt
kernel-rt-debuginfo
ocfs2-kmp-rt-debuginfo
gfs2-kmp-rt-debuginfo
cluster-md-kmp-rt
cluster-md-kmp-rt-debuginfo
ocfs2-kmp-rt
kernel-rt-devel
kernel-syms-rt
kernel-azure-debuginfo
kernel-azure
kernel-azure-devel
kernel-azure-debugsource
kernel-azure-devel-debuginfo
kernel-syms-azure
kernel-source-azure
kernel-devel-azure
gfs2-kmp-default
dlm-kmp-default
cluster-md-kmp-default-debuginfo
ocfs2-kmp-default
gfs2-kmp-default-debuginfo
cluster-md-kmp-default
ocfs2-kmp-default-debuginfo
kernel-default-extra-debuginfo
kernel-default-extra
kernel-source
kernel-default-livepatch
kernel-default-livepatch-devel
reiserfs-kmp-default-debuginfo
kernel-64kb
kernel-64kb-devel
kernel-64kb-devel-debuginfo
kernel-64kb-debugsource
kernel-64kb-debuginfo
kernel-default
kernel-default-devel-debuginfo
kernel-default-debuginfo
kernel-default-devel
kernel-default-debugsource
kernel-macros
kernel-zfcpdump
kernel-zfcpdump-debugsource
kernel-zfcpdump-debuginfo
kernel-obs-build
kernel-obs-build-debugsource
kernel-syms
reiserfs-kmp-default
dlm-kmp-default-debuginfo
kernel-devel
kernel-default-base
kernel-docs
linux (Ubuntu package)
linux-hwe-6.14 (Ubuntu package)
linux-azure (Ubuntu package)
linux-realtime-6.14 (Ubuntu package)
linux-aws-6.14 (Ubuntu package)
linux-gcp-6.14 (Ubuntu package)

Install update from vendor's repository.

kernel-livepatch-6_4_0-150700_7_13-rt - update to 1-150700.1.5.1
kernel-livepatch-SLE15-SP7-RT_Update_3-debugsource - update to 1-150700.1.5.1
kernel-livepatch-6_4_0-150700_7_13-rt-debuginfo - update to 1-150700.1.5.1
kernel-livepatch-SLE15-SP7_Update_3-debugsource - update to 1-150700.15.3.4
kernel-livepatch-6_4_0-150700_53_11-default - update to 1-150700.15.3.4
kernel-livepatch-6_4_0-150700_53_11-default-debuginfo - update to 1-150700.15.3.4
kernel-rt-devel-debuginfo - update to 6.4.0-150700.7.13.1
dlm-kmp-rt - update to 6.4.0-150700.7.13.1
kernel-rt - update to 6.4.0-150700.7.13.1
kernel-devel-rt - update to 6.4.0-150700.7.13.1
kernel-source-rt - update to 6.4.0-150700.7.13.1
dlm-kmp-rt-debuginfo - update to 6.4.0-150700.7.13.1
kernel-rt-debugsource - update to 6.4.0-150700.7.13.1
gfs2-kmp-rt - update to 6.4.0-150700.7.13.1
kernel-rt-debuginfo - update to 6.4.0-150700.7.13.1
ocfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.13.1
gfs2-kmp-rt-debuginfo - update to 6.4.0-150700.7.13.1
cluster-md-kmp-rt - update to 6.4.0-150700.7.13.1
cluster-md-kmp-rt-debuginfo - update to 6.4.0-150700.7.13.1
ocfs2-kmp-rt - update to 6.4.0-150700.7.13.1
kernel-rt-devel - update to 6.4.0-150700.7.13.1
kernel-syms-rt - update to 6.4.0-150700.7.13.1
kernel-azure-debuginfo - update to 6.4.0-150700.20.11.1
kernel-azure - update to 6.4.0-150700.20.11.1
kernel-azure-devel - update to 6.4.0-150700.20.11.1
kernel-azure-debugsource - update to 6.4.0-150700.20.11.1
kernel-azure-devel-debuginfo - update to 6.4.0-150700.20.11.1
kernel-syms-azure - update to 6.4.0-150700.20.11.1
kernel-source-azure - update to 6.4.0-150700.20.11.1
kernel-devel-azure - update to 6.4.0-150700.20.11.1
gfs2-kmp-default - update to 6.4.0-150700.53.11.1
dlm-kmp-default - update to 6.4.0-150700.53.11.1
cluster-md-kmp-default-debuginfo - update to 6.4.0-150700.53.11.1
ocfs2-kmp-default - update to 6.4.0-150700.53.11.1
gfs2-kmp-default-debuginfo - update to 6.4.0-150700.53.11.1
cluster-md-kmp-default - update to 6.4.0-150700.53.11.1
ocfs2-kmp-default-debuginfo - update to 6.4.0-150700.53.11.1
kernel-default-extra-debuginfo - update to 6.4.0-150700.53.11.1
kernel-default-extra - update to 6.4.0-150700.53.11.1
kernel-source - update to 6.4.0-150700.53.11.1
kernel-default-livepatch - update to 6.4.0-150700.53.11.1
kernel-default-livepatch-devel - update to 6.4.0-150700.53.11.1
reiserfs-kmp-default-debuginfo - update to 6.4.0-150700.53.11.1
kernel-64kb - update to 6.4.0-150700.53.11.1
kernel-64kb-devel - update to 6.4.0-150700.53.11.1
kernel-64kb-devel-debuginfo - update to 6.4.0-150700.53.11.1
kernel-64kb-debugsource - update to 6.4.0-150700.53.11.1
kernel-64kb-debuginfo - update to 6.4.0-150700.53.11.1
kernel-default - update to 6.4.0-150700.53.11.1
kernel-default-devel-debuginfo - update to 6.4.0-150700.53.11.1
kernel-default-debuginfo - update to 6.4.0-150700.53.11.1
kernel-default-devel - update to 6.4.0-150700.53.11.1
kernel-default-debugsource - update to 6.4.0-150700.53.11.1
kernel-macros - update to 6.4.0-150700.53.11.1
kernel-zfcpdump - update to 6.4.0-150700.53.11.1
kernel-zfcpdump-debugsource - update to 6.4.0-150700.53.11.1
kernel-zfcpdump-debuginfo - update to 6.4.0-150700.53.11.1
kernel-obs-build - update to 6.4.0-150700.53.11.1
kernel-obs-build-debugsource - update to 6.4.0-150700.53.11.1
kernel-syms - update to 6.4.0-150700.53.11.1
reiserfs-kmp-default - update to 6.4.0-150700.53.11.1
dlm-kmp-default-debuginfo - update to 6.4.0-150700.53.11.1
kernel-devel - update to 6.4.0-150700.53.11.1
kernel-default-base - update to 6.4.0-150700.53.11.1.150700.17.9.4
kernel-docs - update to 6.4.0-150700.53.11.3
linux (Ubuntu package) - addressed in versions 6.14.0-34.34, 6.14.0-1014.14~24.04.1, 6.14.0-1015.15, 6.14.0-1015.15~24.04.1, 6.14.0-1016.16, 6.14.0-1018.19
linux-hwe-6.14 (Ubuntu package) - update to 6.14.0-34.34~24.04.1
linux-azure (Ubuntu package) - addressed in versions 6.14.0-1007.7+25.10.1, 6.14.0-1014.14, 6.14.0-1014.14~24.04.1
linux-realtime-6.14 (Ubuntu package) - update to 6.14.0-1014.14~24.04.1
linux-aws-6.14 (Ubuntu package) - update to 6.14.0-1015.15~24.04.1
linux-gcp-6.14 (Ubuntu package) - update to 6.14.0-1018.19~24.04.1

• https://git.kernel.org/stable/c/09679e9abedfbc5a2590759a1a7893c1c26e6044
• https://git.kernel.org/stable/c/a35b29bdedb4d2ae3160d4d6684a6f1ecd9ca7c2

• Input validation error in Linux kernel scsi fnic driver
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• SUSE update for the Linux Kernel
• Ubuntu update for linux-realtime-6.14
• Ubuntu update for linux-azure
• Ubuntu update for linux
• Ubuntu update for linux-aws-6.14
• Ubuntu update for linux-gcp-6.14
• Ubuntu update for linux-hwe-6.14