CVE-2025-21656

linux: In the Linux kernel, the following vulnerability has been resolved: hwmon: (drivetemp) Fix driver producing garbage...

CVE-2025-21656 is fixed in 61 products on 1 platform, first by DEBIAN-CVE-2025-21656, released January 21, 2025. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.5
medium
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0020
10th percentile

In the Linux kernel, the following vulnerability has been resolved: hwmon: (drivetemp) Fix driver producing garbage data when SCSI errors occur scsi_execute_cmd() function can return both negative (linux codes) and positive (scsi_cmnd result field) error codes. Currently the driver just passes error codes of scsi_execute_cmd() to hwmon core, which is incorrect because hwmon only checks for negative error codes. This leads to hwmon reporting uninitialized data to userspace in case of SCSI errors (for example if the disk drive was disconnected). This patch checks scsi_execute_cmd() output and returns -EIO if it's error code is positive. [groeck: Avoid inline variable declaration for portability]

Where it's fixed

ProductFixed inFixReleased
Linux
dtb-aarch64 · opensuse-leap 15.6 6.4.0-150600.23.38.1 SUSE-SU-2025:0499-1 Feb 13, 2025
kernel-64kb · opensuse-leap 15.6 6.4.0-150600.23.38.1 SUSE-SU-2025:0499-1 Feb 13, 2025
kernel-64kb · sles 15.6 6.4.0-150600.23.38.1 SUSE-SU-2025:0499-1 Feb 13, 2025
kernel-azure · opensuse-leap 15.6 6.4.0-150600.8.26.1 SUSE-SU-2025:0428-1 Feb 11, 2025
kernel-azure · sles 15.6 6.4.0-150600.8.26.1 SUSE-SU-2025:0428-1 Feb 11, 2025
kernel-coco · sles 15.6 6.4.0-15061.12.coco15sp6.1 SUSE-SU-2025:0289-1 Jan 29, 2025
kernel-coco_debug · sles 15.6 6.4.0-15061.12.coco15sp6.1 SUSE-SU-2025:0289-1 Jan 29, 2025
kernel-debug · opensuse-leap 15.6 6.4.0-150600.23.38.1 SUSE-SU-2025:0499-1 Feb 13, 2025
kernel-default · opensuse-leap 15.6 6.4.0-150600.23.38.1 SUSE-SU-2025:0499-1 Feb 13, 2025
kernel-default · sles 15.6 6.4.0-150600.23.38.1 SUSE-SU-2025:0499-1 Feb 13, 2025
kernel-default-base · opensuse-leap 15.6 6.4.0-150600.23.38.1.150600.12.16.2 SUSE-SU-2025:0499-1 Feb 13, 2025
kernel-default-base · sles 15.6 6.4.0-150600.23.38.1.150600.12.16.2 SUSE-SU-2025:0499-1 Feb 13, 2025
kernel-docs · opensuse-leap 15.6 6.4.0-150600.23.38.1 SUSE-SU-2025:0499-1 Feb 13, 2025
kernel-docs · sles 15.6 6.4.0-150600.23.38.1 SUSE-SU-2025:0499-1 Feb 13, 2025
kernel-kvmsmall · opensuse-leap 15.6 6.4.0-150600.23.38.1 SUSE-SU-2025:0499-1 Feb 13, 2025
kernel-livepatch-SLE15-SP6-RT_Update_8 · sles 15.6 1-150600.1.3.1 SUSE-SU-2025:0557-1 Feb 14, 2025
kernel-livepatch-SLE15-SP6_Update_8 · sles 15.6 1-150600.13.3.2 SUSE-SU-2025:0499-1 Feb 13, 2025
kernel-obs-build · opensuse-leap 15.6 6.4.0-150600.23.38.1 SUSE-SU-2025:0499-1 Feb 13, 2025
kernel-obs-build · sles 15.6 6.4.0-150600.23.38.1 SUSE-SU-2025:0499-1 Feb 13, 2025
kernel-obs-qa · opensuse-leap 15.6 6.4.0-150600.23.38.1 SUSE-SU-2025:0499-1 Feb 13, 2025
kernel-rt · opensuse-leap 15.6 6.4.0-150600.10.26.1 SUSE-SU-2025:0557-1 Feb 14, 2025
kernel-rt_debug · opensuse-leap 15.6 6.4.0-150600.10.26.1 SUSE-SU-2025:0557-1 Feb 14, 2025
kernel-source · opensuse-leap 15.6 6.4.0-150600.23.38.1 SUSE-SU-2025:0499-1 Feb 13, 2025
kernel-source · sles 15.6 6.4.0-150600.23.38.1 SUSE-SU-2025:0499-1 Feb 13, 2025
kernel-source-azure · opensuse-leap 15.6 6.4.0-150600.8.26.1 SUSE-SU-2025:0428-1 Feb 11, 2025
kernel-source-azure · sles 15.6 6.4.0-150600.8.26.1 SUSE-SU-2025:0428-1 Feb 11, 2025
kernel-source-coco · sles 15.6 6.4.0-15061.12.coco15sp6.1 SUSE-SU-2025:0289-1 Jan 29, 2025
kernel-source-rt · opensuse-leap 15.6 6.4.0-150600.10.26.1 SUSE-SU-2025:0557-1 Feb 14, 2025
kernel-syms · opensuse-leap 15.6 6.4.0-150600.23.38.1 SUSE-SU-2025:0499-1 Feb 13, 2025
kernel-syms · sles 15.6 6.4.0-150600.23.38.1 SUSE-SU-2025:0499-1 Feb 13, 2025
kernel-syms-azure · opensuse-leap 15.6 6.4.0-150600.8.26.1 SUSE-SU-2025:0428-1 Feb 11, 2025
kernel-syms-azure · sles 15.6 6.4.0-150600.8.26.1 SUSE-SU-2025:0428-1 Feb 11, 2025
kernel-syms-coco · sles 15.6 6.4.0-15061.12.coco15sp6.1 SUSE-SU-2025:0289-1 Jan 29, 2025
kernel-syms-rt · opensuse-leap 15.6 6.4.0-150600.10.26.1 SUSE-SU-2025:0557-1 Feb 14, 2025
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
kernel-zfcpdump · opensuse-leap 15.6 6.4.0-150600.23.38.1 SUSE-SU-2025:0499-1 Feb 13, 2025
kernel-zfcpdump · sles 15.6 6.4.0-150600.23.38.1 SUSE-SU-2025:0499-1 Feb 13, 2025
linux · Debian 13.5 (trixie) 6.12.10-1 DEBIAN-CVE-2025-21656 Jan 21, 2025
linux · Debian 14 6.12.10-1 DEBIAN-CVE-2025-21656 Jan 21, 2025

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