CVE-2025-39788

scsi: ufs: exynos: Fix programming of HCI_UTRL_NEXUS_TYPE

CVE-2025-39788 is fixed in 24 products on 1 platform, first by DEBIAN-CVE-2025-39788, released September 11, 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
0.0017
6th percentile

In the Linux kernel, the following vulnerability has been resolved: scsi: ufs: exynos: Fix programming of HCI_UTRL_NEXUS_TYPE On Google gs101, the number of UTP transfer request slots (nutrs) is 32, and in this case the driver ends up programming the UTRL_NEXUS_TYPE incorrectly as 0. This is because the left hand side of the shift is 1, which is of type int, i.e. 31 bits wide. Shifting by more than that width results in undefined behaviour. Fix this by switching to the BIT() macro, which applies correct type casting as required. This ensures the correct value is written to UTRL_NEXUS_TYPE (0xffffffff on gs101), and it also fixes a UBSAN shift warning: UBSAN: shift-out-of-bounds in drivers/ufs/host/ufs-exynos.c:1113:21 shift exponent 32 is too large for 32-bit type 'int' For consistency, apply the same change to the nutmrs / UTMRL_NEXUS_TYPE write.

Where it's fixed

ProductFixed inFixReleased
Linux
dtb-aarch64 · opensuse-leap 15.6 6.4.0-150600.23.81.1 SUSE-SU-2025:4422-1 Dec 17, 2025
dtb-aarch64 · opensuse-leap 16.0 6.12.0-160000.6.1 OPENSUSE-SU-2025:20081-1 Nov 25, 2025
kernel-64kb · opensuse-leap 15.6 6.4.0-150600.23.81.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-64kb · opensuse-leap 16.0 6.12.0-160000.6.1 OPENSUSE-SU-2025:20081-1 Nov 25, 2025
kernel-64kb · sles 15.6 6.4.0-150600.23.81.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-64kb · sles 15.7 6.4.0-150700.53.25.1 SUSE-SU-2025:4393-1 Dec 15, 2025
kernel-64kb · sles 16.0 6.12.0-160000.6.1 SUSE-SU-2025:21139-1 Nov 25, 2025
kernel-azure · opensuse-leap 15.6 6.4.0-150600.8.58.1 SUSE-SU-2025:4505-1 Dec 22, 2025
kernel-azure · sles 15.6 6.4.0-150600.8.58.1 SUSE-SU-2025:4505-1 Dec 22, 2025
kernel-azure · sles 15.7 6.4.0-150700.20.21.1 SUSE-SU-2025:4517-1 Dec 23, 2025
kernel-debug · opensuse-leap 15.6 6.4.0-150600.23.81.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-default · opensuse-leap 15.6 6.4.0-150600.23.81.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-default · opensuse-leap 16.0 6.12.0-160000.6.1 OPENSUSE-SU-2025:20081-1 Nov 25, 2025
kernel-default · sles 15.6 6.4.0-150600.23.81.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-default · sles 15.7 6.4.0-150700.53.25.1 SUSE-SU-2025:4393-1 Dec 15, 2025
kernel-default · sles 16.0 6.12.0-160000.6.1 SUSE-SU-2025:21139-1 Nov 25, 2025
kernel-default-base · opensuse-leap 15.6 6.4.0-150600.23.81.3.150600.12.36.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-default-base · opensuse-leap 16.0 6.12.0-160000.6.1.160000.2.4 OPENSUSE-SU-2025:20081-1 Nov 25, 2025
kernel-default-base · sles 15.6 6.4.0-150600.23.81.3.150600.12.36.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-default-base · sles 15.7 6.4.0-150700.53.25.1.150700.17.17.1 SUSE-SU-2025:4393-1 Dec 15, 2025
kernel-default-base · sles 16.0 6.12.0-160000.6.1.160000.2.4 SUSE-SU-2025:21139-1 Nov 25, 2025
kernel-docs · opensuse-leap 15.6 6.4.0-150600.23.81.1 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-docs · opensuse-leap 16.0 6.12.0-160000.6.1 OPENSUSE-SU-2025:20081-1 Nov 25, 2025
kernel-docs · sles 15.6 6.4.0-150600.23.81.1 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-docs · sles 15.7 6.4.0-150700.53.25.2 SUSE-SU-2025:4393-1 Dec 15, 2025
kernel-docs · sles 16.0 6.12.0-160000.6.1 SUSE-SU-2025:21139-1 Nov 25, 2025
kernel-kvmsmall · opensuse-leap 15.6 6.4.0-150600.23.81.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-kvmsmall · opensuse-leap 16.0 6.12.0-160000.6.1 OPENSUSE-SU-2025:20081-1 Nov 25, 2025
kernel-kvmsmall · sles 16.0 6.12.0-160000.6.1 SUSE-SU-2025:21139-1 Nov 25, 2025
kernel-livepatch-SLE15-SP6-RT_Update_18 · sles 15.6 1-150600.1.3.1 SUSE-SU-2025:4521-1 Dec 24, 2025
kernel-livepatch-SLE15-SP6_Update_18 · sles 15.6 1-150600.13.3.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-livepatch-SLE15-SP7-RT_Update_7 · sles 15.7 1-150700.1.3.1 SUSE-SU-2025:4516-1 Dec 23, 2025
kernel-livepatch-SLE15-SP7_Update_7 · sles 15.7 1-150700.15.3.1 SUSE-SU-2025:4393-1 Dec 15, 2025
kernel-obs-build · opensuse-leap 15.6 6.4.0-150600.23.81.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-obs-build · opensuse-leap 16.0 6.12.0-160000.6.1 OPENSUSE-SU-2025:20081-1 Nov 25, 2025
kernel-obs-build · sles 15.6 6.4.0-150600.23.81.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-obs-build · sles 15.7 6.4.0-150700.53.25.1 SUSE-SU-2025:4393-1 Dec 15, 2025
kernel-obs-qa · opensuse-leap 15.6 6.4.0-150600.23.81.1 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-obs-qa · opensuse-leap 16.0 6.12.0-160000.6.1 OPENSUSE-SU-2025:20081-1 Nov 25, 2025
kernel-obs-qa · sles 16.0 6.12.0-160000.6.1 SUSE-SU-2025:21139-1 Nov 25, 2025
kernel-rt · opensuse-leap 15.6 6.4.0-150600.10.61.1 SUSE-SU-2025:4521-1 Dec 24, 2025
kernel-rt · opensuse-leap 16.0 6.12.0-160000.6.1 OPENSUSE-SU-2025:20081-1 Nov 25, 2025
kernel-rt_debug · opensuse-leap 15.6 6.4.0-150600.10.61.1 SUSE-SU-2025:4521-1 Dec 24, 2025
kernel-source · opensuse-leap 15.6 6.4.0-150600.23.81.2 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-source · opensuse-leap 16.0 6.12.0-160000.6.1 OPENSUSE-SU-2025:20081-1 Nov 25, 2025
kernel-source · sles 15.6 6.4.0-150600.23.81.2 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-source · sles 15.7 6.4.0-150700.53.25.1 SUSE-SU-2025:4393-1 Dec 15, 2025
kernel-source · sles 16.0 6.12.0-160000.6.1 SUSE-SU-2025:21139-1 Nov 25, 2025
kernel-source-azure · opensuse-leap 15.6 6.4.0-150600.8.58.1 SUSE-SU-2025:4505-1 Dec 22, 2025
kernel-source-azure · sles 15.6 6.4.0-150600.8.58.1 SUSE-SU-2025:4505-1 Dec 22, 2025
kernel-source-azure · sles 15.7 6.4.0-150700.20.21.1 SUSE-SU-2025:4517-1 Dec 23, 2025
kernel-source-rt · opensuse-leap 15.6 6.4.0-150600.10.61.1 SUSE-SU-2025:4521-1 Dec 24, 2025
kernel-syms · opensuse-leap 15.6 6.4.0-150600.23.81.1 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-syms · opensuse-leap 16.0 6.12.0-160000.6.1 OPENSUSE-SU-2025:20081-1 Nov 25, 2025
kernel-syms · sles 15.6 6.4.0-150600.23.81.1 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-syms · sles 15.7 6.4.0-150700.53.25.1 SUSE-SU-2025:4393-1 Dec 15, 2025
kernel-syms · sles 16.0 6.12.0-160000.6.1 SUSE-SU-2025:21139-1 Nov 25, 2025
kernel-syms-azure · opensuse-leap 15.6 6.4.0-150600.8.58.1 SUSE-SU-2025:4505-1 Dec 22, 2025
kernel-syms-azure · sles 15.6 6.4.0-150600.8.58.1 SUSE-SU-2025:4505-1 Dec 22, 2025
kernel-syms-azure · sles 15.7 6.4.0-150700.20.21.1 SUSE-SU-2025:4517-1 Dec 23, 2025
kernel-syms-rt · opensuse-leap 15.6 6.4.0-150600.10.61.1 SUSE-SU-2025:4521-1 Dec 24, 2025
kernel-zfcpdump · opensuse-leap 15.6 6.4.0-150600.23.81.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-zfcpdump · opensuse-leap 16.0 6.12.0-160000.6.1 OPENSUSE-SU-2025:20081-1 Nov 25, 2025
kernel-zfcpdump · sles 15.6 6.4.0-150600.23.81.3 SUSE-SU-2025:4422-1 Dec 17, 2025
kernel-zfcpdump · sles 15.7 6.4.0-150700.53.25.1 SUSE-SU-2025:4393-1 Dec 15, 2025
kernel-zfcpdump · sles 16.0 6.12.0-160000.6.1 SUSE-SU-2025:21139-1 Nov 25, 2025
linux · Debian 12.15 (bookworm) 6.1.153-1 DEBIAN-CVE-2025-39788 Sep 11, 2025
linux · Debian 13.5 (trixie) 6.12.48-1 DEBIAN-CVE-2025-39788 Sep 11, 2025
linux · Debian 14 6.16.5-1 DEBIAN-CVE-2025-39788 Sep 11, 2025

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