CVE-2025-21656
MEDIUM
MEDIUM
Priority: 0.01
BB Relevance:
36/100
Published: 2025-01-21
Modified: 2026-10-30
First seen: 2026-10-30
Status: active
Attack Surface
Low Complexity
No Interaction
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
None
I:
None
A:
High
Description
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]
Affected Software (14)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 5b46903d8bf372e563bf2150d46b87fff197a109 < babdf2a11329d30dc5086eb7a938a360aa490282 |
| Linux | Linux | 5b46903d8bf372e563bf2150d46b87fff197a109 < 0435d35f9d511fa5ddba49c9f68f947e395c93f9 |
| Linux | Linux | 5b46903d8bf372e563bf2150d46b87fff197a109 < f9723fd2770ef5563ff1685f72bcc1c411219c29 |
| Linux | Linux | 5b46903d8bf372e563bf2150d46b87fff197a109 < 53e25b10a28edaf8c2a1d3916fd8929501a50dfc |
| Linux | Linux | 5b46903d8bf372e563bf2150d46b87fff197a109 < 42268d885e44af875a6474f7bba519cc6cea6a9d |
| Linux | Linux | 5b46903d8bf372e563bf2150d46b87fff197a109 < 82163d63ae7a4c36142cd252388737205bb7e4b9 |
| Linux | Linux | 5.6 |
| linux | linux_kernel | 5.6 – 6.6.72 |
| linux | linux_kernel | 6.13 |
| linux | linux_kernel | 6.13 |
| linux | linux_kernel | 6.13 |
| linux | linux_kernel | 6.13 |
| linux | linux_kernel | 6.13 |
| linux | linux_kernel | 6.13 |