CVE-2025-21656None▾ SunlitIn 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 …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Nov 3.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
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]
Linux >= 5b46903d8bf372e563bf2150d46b87fff197a109 < babdf2a11329d30dc5086eb7a938a360aa490282Linux >= 5b46903d8bf372e563bf2150d46b87fff197a109 < 0435d35f9d511fa5ddba49c9f68f947e395c93f9Linux >= 5b46903d8bf372e563bf2150d46b87fff197a109 < f9723fd2770ef5563ff1685f72bcc1c411219c29Linux >= 5b46903d8bf372e563bf2150d46b87fff197a109 < 53e25b10a28edaf8c2a1d3916fd8929501a50dfcLinux >= 5b46903d8bf372e563bf2150d46b87fff197a109 < 42268d885e44af875a6474f7bba519cc6cea6a9dLinux >= 5b46903d8bf372e563bf2150d46b87fff197a109 < 82163d63ae7a4c36142cd252388737205bb7e4b9Linux 5.6Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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