CVE-2025-21656
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2025-21656
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-21656.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-21656
- Downstream
- Related
- Published
- 2025-01-21T12:18:13Z
- Modified
- 2025-10-22T08:46:02.407458Z
- Summary
- hwmon: (drivetemp) Fix driver producing garbage data when SCSI errors occur
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
hwmon: (drivetemp) Fix driver producing garbage data when SCSI errors occur
scsiexecutecmd() function can return both negative (linux codes) and positive (scsi_cmnd result field) error codes.
Currently the driver just passes error codes of scsiexecutecmd() 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 scsiexecutecmd() output and returns -EIO if it's error code is positive.
[groeck: Avoid inline variable declaration for portability]
- References
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5b46903d8bf372e563bf2150d46b87fff197a109Fixed53e25b10a28edaf8c2a1d3916fd8929501a50dfc
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5b46903d8bf372e563bf2150d46b87fff197a109Fixed42268d885e44af875a6474f7bba519cc6cea6a9d
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5b46903d8bf372e563bf2150d46b87fff197a109Fixed82163d63ae7a4c36142cd252388737205bb7e4b9
Affected versions
v5.*
v5.10
v5.10-rc1
v5.10-rc2
v5.10-rc3
v5.10-rc4
v5.10-rc5
v5.10-rc6
v5.10-rc7
v5.11
v5.11-rc1
v5.11-rc2
v5.11-rc3
v5.11-rc4
v5.11-rc5
v5.11-rc6
v5.11-rc7
v5.12
v5.12-rc1
v5.12-rc1-dontuse
v5.12-rc2
v5.12-rc3
v5.12-rc4
v5.12-rc5
v5.12-rc6
v5.12-rc7
v5.12-rc8
v5.13
v5.13-rc1
v5.13-rc2
v5.13-rc3
v5.13-rc4
v5.13-rc5
v5.13-rc6
v5.13-rc7
v5.14
v5.14-rc1
v5.14-rc2
v5.14-rc3
v5.14-rc4
v5.14-rc5
v5.14-rc6
v5.14-rc7
v5.15
v5.15-rc1
v5.15-rc2
v5.15-rc3
v5.15-rc4
v5.15-rc5
v5.15-rc6
v5.15-rc7
v5.16
v5.16-rc1
v5.16-rc2
v5.16-rc3
v5.16-rc4
v5.16-rc5
v5.16-rc6
v5.16-rc7
v5.16-rc8
v5.17
v5.17-rc1
v5.17-rc2
v5.17-rc3
v5.17-rc4
v5.17-rc5
v5.17-rc6
v5.17-rc7
v5.17-rc8
v5.18
v5.18-rc1
v5.18-rc2
v5.18-rc3
v5.18-rc4
v5.18-rc5
v5.18-rc6
v5.18-rc7
v5.19
v5.19-rc1
v5.19-rc2
v5.19-rc3
v5.19-rc4
v5.19-rc5
v5.19-rc6
v5.19-rc7
v5.19-rc8
v5.5
v5.6
v5.6-rc1
v5.6-rc2
v5.6-rc3
v5.6-rc4
v5.6-rc5
v5.6-rc6
v5.6-rc7
v5.7
v5.7-rc1
v5.7-rc2
v5.7-rc3
v5.7-rc4
v5.7-rc5
v5.7-rc6
v5.7-rc7
v5.8
v5.8-rc1
v5.8-rc2
v5.8-rc3
v5.8-rc4
v5.8-rc5
v5.8-rc6
v5.8-rc7
v5.9
v5.9-rc1
v5.9-rc2
v5.9-rc3
v5.9-rc4
v5.9-rc5
v5.9-rc6
v5.9-rc7
v5.9-rc8
v6.*
v6.0
v6.0-rc1
v6.0-rc2
v6.0-rc3
v6.0-rc4
v6.0-rc5
v6.0-rc6
v6.0-rc7
v6.1
v6.1-rc1
v6.1-rc2
v6.1-rc3
v6.1-rc4
v6.1-rc5
v6.1-rc6
v6.1-rc7
v6.1-rc8
v6.10
v6.10-rc1
v6.10-rc2
v6.10-rc3
v6.10-rc4
v6.10-rc5
v6.10-rc6
v6.10-rc7
v6.11
v6.11-rc1
v6.11-rc2
v6.11-rc3
v6.11-rc4
v6.11-rc5
v6.11-rc6
v6.11-rc7
v6.12
v6.12-rc1
v6.12-rc2
v6.12-rc3
v6.12-rc4
v6.12-rc5
v6.12-rc6
v6.12-rc7
v6.12.1
v6.12.2
v6.12.3
v6.12.4
v6.12.5
v6.12.6
v6.12.7
v6.12.8
v6.12.9
v6.13-rc1
v6.13-rc2
v6.13-rc3
v6.13-rc4
v6.13-rc5
v6.13-rc6
v6.2
v6.2-rc1
v6.2-rc2
v6.2-rc3
v6.2-rc4
v6.2-rc5
v6.2-rc6
v6.2-rc7
v6.2-rc8
v6.3
v6.3-rc1
v6.3-rc2
v6.3-rc3
v6.3-rc4
v6.3-rc5
v6.3-rc6
v6.3-rc7
v6.4
v6.4-rc1
v6.4-rc2
v6.4-rc3
v6.4-rc4
v6.4-rc5
v6.4-rc6
v6.4-rc7
v6.5
v6.5-rc1
v6.5-rc2
v6.5-rc3
v6.5-rc4
v6.5-rc5
v6.5-rc6
v6.5-rc7
v6.6
v6.6-rc1
v6.6-rc2
v6.6-rc3
v6.6-rc4
v6.6-rc5
v6.6-rc6
v6.6-rc7
v6.6.1
v6.6.10
v6.6.11
v6.6.12
v6.6.13
v6.6.14
v6.6.15
v6.6.16
v6.6.17
v6.6.18
v6.6.19
v6.6.2
v6.6.20
v6.6.21
v6.6.22
v6.6.23
v6.6.24
v6.6.25
v6.6.26
v6.6.27
v6.6.28
v6.6.29
v6.6.3
v6.6.30
v6.6.31
v6.6.32
v6.6.33
v6.6.34
v6.6.35
v6.6.36
v6.6.37
v6.6.38
v6.6.39
v6.6.4
v6.6.40
v6.6.41
v6.6.42
v6.6.43
v6.6.44
v6.6.45
v6.6.46
v6.6.47
v6.6.48
v6.6.49
v6.6.5
v6.6.50
v6.6.51
v6.6.52
v6.6.53
v6.6.54
v6.6.55
v6.6.56
v6.6.57
v6.6.58
v6.6.59
v6.6.6
v6.6.60
v6.6.61
v6.6.62
v6.6.63
v6.6.64
v6.6.65
v6.6.66
v6.6.67
v6.6.68
v6.6.69
v6.6.7
v6.6.70
v6.6.71
v6.6.8
v6.6.9
v6.7
v6.7-rc1
v6.7-rc2
v6.7-rc3
v6.7-rc4
v6.7-rc5
v6.7-rc6
v6.7-rc7
v6.7-rc8
v6.8
v6.8-rc1
v6.8-rc2
v6.8-rc3
v6.8-rc4
v6.8-rc5
v6.8-rc6
v6.8-rc7
v6.9
v6.9-rc1
v6.9-rc2
v6.9-rc3
v6.9-rc4
v6.9-rc5
v6.9-rc6
v6.9-rc7
Database specific
vanir_signatures
[
{
"signature_type": "Line",
"digest": {
"line_hashes": [
"87123763851623041867638585457038791659",
"82573861073895434887138759238836841502",
"198466892955653680130390109670655416962",
"227221378239493916228304988548952799013",
"105528930668713677891615799754702471498",
"249879033619555237467982827588503767868",
"188344498329923334792709065823596254961",
"88648129933679379527773940971624973003",
"85178918344439090287686233402270940485"
],
"threshold": 0.9
},
"deprecated": false,
"signature_version": "v1",
"target": {
"file": "drivers/hwmon/drivetemp.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@82163d63ae7a4c36142cd252388737205bb7e4b9",
"id": "CVE-2025-21656-6a18c1e6"
},
{
"signature_type": "Line",
"digest": {
"line_hashes": [
"87123763851623041867638585457038791659",
"82573861073895434887138759238836841502",
"198466892955653680130390109670655416962",
"227221378239493916228304988548952799013",
"105528930668713677891615799754702471498",
"249879033619555237467982827588503767868",
"188344498329923334792709065823596254961",
"88648129933679379527773940971624973003",
"85178918344439090287686233402270940485"
],
"threshold": 0.9
},
"deprecated": false,
"signature_version": "v1",
"target": {
"file": "drivers/hwmon/drivetemp.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@42268d885e44af875a6474f7bba519cc6cea6a9d",
"id": "CVE-2025-21656-88f69b1d"
},
{
"signature_type": "Function",
"digest": {
"function_hash": "220987138219183059332412819667982228021",
"length": 643.0
},
"deprecated": false,
"signature_version": "v1",
"target": {
"function": "drivetemp_scsi_command",
"file": "drivers/hwmon/drivetemp.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@53e25b10a28edaf8c2a1d3916fd8929501a50dfc",
"id": "CVE-2025-21656-d24b3e77"
},
{
"signature_type": "Line",
"digest": {
"line_hashes": [
"87123763851623041867638585457038791659",
"82573861073895434887138759238836841502",
"198466892955653680130390109670655416962",
"227221378239493916228304988548952799013",
"105528930668713677891615799754702471498",
"249879033619555237467982827588503767868",
"188344498329923334792709065823596254961",
"88648129933679379527773940971624973003",
"85178918344439090287686233402270940485"
],
"threshold": 0.9
},
"deprecated": false,
"signature_version": "v1",
"target": {
"file": "drivers/hwmon/drivetemp.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@53e25b10a28edaf8c2a1d3916fd8929501a50dfc",
"id": "CVE-2025-21656-d466f494"
},
{
"signature_type": "Function",
"digest": {
"function_hash": "220987138219183059332412819667982228021",
"length": 643.0
},
"deprecated": false,
"signature_version": "v1",
"target": {
"function": "drivetemp_scsi_command",
"file": "drivers/hwmon/drivetemp.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@82163d63ae7a4c36142cd252388737205bb7e4b9",
"id": "CVE-2025-21656-dec9d9d1"
},
{
"signature_type": "Function",
"digest": {
"function_hash": "220987138219183059332412819667982228021",
"length": 643.0
},
"deprecated": false,
"signature_version": "v1",
"target": {
"function": "drivetemp_scsi_command",
"file": "drivers/hwmon/drivetemp.c"
},
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@42268d885e44af875a6474f7bba519cc6cea6a9d",
"id": "CVE-2025-21656-f471896c"
}
]