# 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. - Web page: https://patchblox.com/security/cve/CVE-2025-39788 - Priority: High - CVSS: 7.8 (high) - EPSS: 0.0017 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Sep 11, 2025 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-39788 ## Description 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 | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Linux | dtb-aarch64 opensuse-leap 15.6 | 6.4.0-150600.23.81.1 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 | | Linux | dtb-aarch64 opensuse-leap 16.0 | 6.12.0-160000.6.1 | [OPENSUSE-SU-2025:20081-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20081-1.md) | Nov 25, 2025 | | Linux | kernel-64kb opensuse-leap 15.6 | 6.4.0-150600.23.81.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 | | Linux | kernel-64kb opensuse-leap 16.0 | 6.12.0-160000.6.1 | [OPENSUSE-SU-2025:20081-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20081-1.md) | Nov 25, 2025 | | Linux | kernel-64kb sles 15.6 | 6.4.0-150600.23.81.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 | | Linux | kernel-64kb sles 15.7 | 6.4.0-150700.53.25.1 | [SUSE-SU-2025:4393-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4393-1.md) | Dec 15, 2025 | | Linux | kernel-64kb sles 16.0 | 6.12.0-160000.6.1 | [SUSE-SU-2025:21139-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-21139-1.md) | Nov 25, 2025 | | Linux | kernel-azure opensuse-leap 15.6 | 6.4.0-150600.8.58.1 | [SUSE-SU-2025:4505-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4505-1.md) | Dec 22, 2025 | | Linux | kernel-azure sles 15.6 | 6.4.0-150600.8.58.1 | [SUSE-SU-2025:4505-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4505-1.md) | Dec 22, 2025 | | Linux | kernel-azure sles 15.7 | 6.4.0-150700.20.21.1 | [SUSE-SU-2025:4517-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4517-1.md) | Dec 23, 2025 | | Linux | kernel-debug opensuse-leap 15.6 | 6.4.0-150600.23.81.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 | | Linux | kernel-default opensuse-leap 15.6 | 6.4.0-150600.23.81.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 | | Linux | kernel-default opensuse-leap 16.0 | 6.12.0-160000.6.1 | [OPENSUSE-SU-2025:20081-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20081-1.md) | Nov 25, 2025 | | Linux | kernel-default sles 15.6 | 6.4.0-150600.23.81.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 | | Linux | kernel-default sles 15.7 | 6.4.0-150700.53.25.1 | [SUSE-SU-2025:4393-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4393-1.md) | Dec 15, 2025 | | Linux | kernel-default sles 16.0 | 6.12.0-160000.6.1 | [SUSE-SU-2025:21139-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-21139-1.md) | Nov 25, 2025 | | Linux | kernel-default-base opensuse-leap 15.6 | 6.4.0-150600.23.81.3.150600.12.36.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 | | Linux | kernel-default-base opensuse-leap 16.0 | 6.12.0-160000.6.1.160000.2.4 | [OPENSUSE-SU-2025:20081-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20081-1.md) | Nov 25, 2025 | | Linux | kernel-default-base sles 15.6 | 6.4.0-150600.23.81.3.150600.12.36.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 | | Linux | kernel-default-base sles 15.7 | 6.4.0-150700.53.25.1.150700.17.17.1 | [SUSE-SU-2025:4393-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4393-1.md) | Dec 15, 2025 | | Linux | kernel-default-base sles 16.0 | 6.12.0-160000.6.1.160000.2.4 | [SUSE-SU-2025:21139-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-21139-1.md) | Nov 25, 2025 | | Linux | kernel-docs opensuse-leap 15.6 | 6.4.0-150600.23.81.1 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 | | Linux | kernel-docs opensuse-leap 16.0 | 6.12.0-160000.6.1 | [OPENSUSE-SU-2025:20081-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20081-1.md) | Nov 25, 2025 | | Linux | kernel-docs sles 15.6 | 6.4.0-150600.23.81.1 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 | | Linux | kernel-docs sles 15.7 | 6.4.0-150700.53.25.2 | [SUSE-SU-2025:4393-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4393-1.md) | Dec 15, 2025 | | Linux | kernel-docs sles 16.0 | 6.12.0-160000.6.1 | [SUSE-SU-2025:21139-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-21139-1.md) | Nov 25, 2025 | | Linux | kernel-kvmsmall opensuse-leap 15.6 | 6.4.0-150600.23.81.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 | | Linux | kernel-kvmsmall opensuse-leap 16.0 | 6.12.0-160000.6.1 | [OPENSUSE-SU-2025:20081-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20081-1.md) | Nov 25, 2025 | | Linux | kernel-kvmsmall sles 16.0 | 6.12.0-160000.6.1 | [SUSE-SU-2025:21139-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-21139-1.md) | Nov 25, 2025 | | Linux | kernel-livepatch-SLE15-SP6-RT_Update_18 sles 15.6 | 1-150600.1.3.1 | [SUSE-SU-2025:4521-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4521-1.md) | Dec 24, 2025 | | Linux | kernel-livepatch-SLE15-SP6_Update_18 sles 15.6 | 1-150600.13.3.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 | | Linux | kernel-livepatch-SLE15-SP7-RT_Update_7 sles 15.7 | 1-150700.1.3.1 | [SUSE-SU-2025:4516-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4516-1.md) | Dec 23, 2025 | | Linux | kernel-livepatch-SLE15-SP7_Update_7 sles 15.7 | 1-150700.15.3.1 | [SUSE-SU-2025:4393-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4393-1.md) | Dec 15, 2025 | | Linux | kernel-obs-build opensuse-leap 15.6 | 6.4.0-150600.23.81.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 | | Linux | kernel-obs-build opensuse-leap 16.0 | 6.12.0-160000.6.1 | [OPENSUSE-SU-2025:20081-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20081-1.md) | Nov 25, 2025 | | Linux | kernel-obs-build sles 15.6 | 6.4.0-150600.23.81.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 | | Linux | kernel-obs-build sles 15.7 | 6.4.0-150700.53.25.1 | [SUSE-SU-2025:4393-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4393-1.md) | Dec 15, 2025 | | Linux | kernel-obs-qa opensuse-leap 15.6 | 6.4.0-150600.23.81.1 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 | | Linux | kernel-obs-qa opensuse-leap 16.0 | 6.12.0-160000.6.1 | [OPENSUSE-SU-2025:20081-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20081-1.md) | Nov 25, 2025 | | Linux | kernel-obs-qa sles 16.0 | 6.12.0-160000.6.1 | [SUSE-SU-2025:21139-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-21139-1.md) | Nov 25, 2025 | | Linux | kernel-rt opensuse-leap 15.6 | 6.4.0-150600.10.61.1 | [SUSE-SU-2025:4521-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4521-1.md) | Dec 24, 2025 | | Linux | kernel-rt opensuse-leap 16.0 | 6.12.0-160000.6.1 | [OPENSUSE-SU-2025:20081-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20081-1.md) | Nov 25, 2025 | | Linux | kernel-rt_debug opensuse-leap 15.6 | 6.4.0-150600.10.61.1 | [SUSE-SU-2025:4521-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4521-1.md) | Dec 24, 2025 | | Linux | kernel-source opensuse-leap 15.6 | 6.4.0-150600.23.81.2 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 | | Linux | kernel-source opensuse-leap 16.0 | 6.12.0-160000.6.1 | [OPENSUSE-SU-2025:20081-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20081-1.md) | Nov 25, 2025 | | Linux | kernel-source sles 15.6 | 6.4.0-150600.23.81.2 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 | | Linux | kernel-source sles 15.7 | 6.4.0-150700.53.25.1 | [SUSE-SU-2025:4393-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4393-1.md) | Dec 15, 2025 | | Linux | kernel-source sles 16.0 | 6.12.0-160000.6.1 | [SUSE-SU-2025:21139-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-21139-1.md) | Nov 25, 2025 | | Linux | kernel-source-azure opensuse-leap 15.6 | 6.4.0-150600.8.58.1 | [SUSE-SU-2025:4505-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4505-1.md) | Dec 22, 2025 | | Linux | kernel-source-azure sles 15.6 | 6.4.0-150600.8.58.1 | [SUSE-SU-2025:4505-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4505-1.md) | Dec 22, 2025 | | Linux | kernel-source-azure sles 15.7 | 6.4.0-150700.20.21.1 | [SUSE-SU-2025:4517-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4517-1.md) | Dec 23, 2025 | | Linux | kernel-source-rt opensuse-leap 15.6 | 6.4.0-150600.10.61.1 | [SUSE-SU-2025:4521-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4521-1.md) | Dec 24, 2025 | | Linux | kernel-syms opensuse-leap 15.6 | 6.4.0-150600.23.81.1 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 | | Linux | kernel-syms opensuse-leap 16.0 | 6.12.0-160000.6.1 | [OPENSUSE-SU-2025:20081-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20081-1.md) | Nov 25, 2025 | | Linux | kernel-syms sles 15.6 | 6.4.0-150600.23.81.1 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 | | Linux | kernel-syms sles 15.7 | 6.4.0-150700.53.25.1 | [SUSE-SU-2025:4393-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4393-1.md) | Dec 15, 2025 | | Linux | kernel-syms sles 16.0 | 6.12.0-160000.6.1 | [SUSE-SU-2025:21139-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-21139-1.md) | Nov 25, 2025 | | Linux | kernel-syms-azure opensuse-leap 15.6 | 6.4.0-150600.8.58.1 | [SUSE-SU-2025:4505-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4505-1.md) | Dec 22, 2025 | | Linux | kernel-syms-azure sles 15.6 | 6.4.0-150600.8.58.1 | [SUSE-SU-2025:4505-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4505-1.md) | Dec 22, 2025 | | Linux | kernel-syms-azure sles 15.7 | 6.4.0-150700.20.21.1 | [SUSE-SU-2025:4517-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4517-1.md) | Dec 23, 2025 | | Linux | kernel-syms-rt opensuse-leap 15.6 | 6.4.0-150600.10.61.1 | [SUSE-SU-2025:4521-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4521-1.md) | Dec 24, 2025 | | Linux | kernel-zfcpdump opensuse-leap 15.6 | 6.4.0-150600.23.81.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 | | Linux | kernel-zfcpdump opensuse-leap 16.0 | 6.12.0-160000.6.1 | [OPENSUSE-SU-2025:20081-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2025-20081-1.md) | Nov 25, 2025 | | Linux | kernel-zfcpdump sles 15.6 | 6.4.0-150600.23.81.3 | [SUSE-SU-2025:4422-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4422-1.md) | Dec 17, 2025 | | Linux | kernel-zfcpdump sles 15.7 | 6.4.0-150700.53.25.1 | [SUSE-SU-2025:4393-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4393-1.md) | Dec 15, 2025 | | Linux | kernel-zfcpdump sles 16.0 | 6.12.0-160000.6.1 | [SUSE-SU-2025:21139-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-21139-1.md) | Nov 25, 2025 | | Linux | linux Debian 12.15 (bookworm) | 6.1.153-1 | [DEBIAN-CVE-2025-39788](https://patchblox.com/security/data/fix/linux/debian-cve-2025-39788.md) | Sep 11, 2025 | | Linux | linux Debian 13.5 (trixie) | 6.12.48-1 | [DEBIAN-CVE-2025-39788](https://patchblox.com/security/data/fix/linux/debian-cve-2025-39788.md) | Sep 11, 2025 | | Linux | linux Debian 14 | 6.16.5-1 | [DEBIAN-CVE-2025-39788](https://patchblox.com/security/data/fix/linux/debian-cve-2025-39788.md) | Sep 11, 2025 | --- Data as of 2026-11-08T06:59:42Z UTC. 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