CVE-2026-74552
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
hwmon: (lm90) Only report alarms if driver is ready
In the Linux kernel, the following vulnerability has been resolved: hwmon: (lm90) Only report alarms if driver is ready Userspace can read sysfs attributes before driver registration is complete, immediately after devm_hwmon_device_register_with_info() has been called. At that time, data->hwmon_dev is not yet initialized. This can trigger a NULL pointer access since lm90_update_device() and with it lm90_update_alarms_locked() will be called. This call schedules report_work and lm90_report_alarms(), which passes the still-NULL data->hwmon_dev to hwmon_notify_event() and triggers a NULL pointer dereference. Fix the problem by only scheduling the report and alert workers data->hwmon_dev is set.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| f6d0775119fb905fb02eafa98d575cf8ee792d46 | affected | git | 31ce62d36d859423dc39f9902f7c4c307b2e00e3 | Unavailable | None listed |
| f6d0775119fb905fb02eafa98d575cf8ee792d46 | affected | git | 4eed33c7db5c0c573928d28d8a2c003642c679b8 | Unavailable | None listed |
| f6d0775119fb905fb02eafa98d575cf8ee792d46 | affected | git | 70d9a71aa407044d70b50d356b6decf6659c4d56 | Unavailable | None listed |
| f6d0775119fb905fb02eafa98d575cf8ee792d46 | affected | git | 075fce376cf852db9293481edce07c181a9b1f46 | Unavailable | None listed |
| f6d0775119fb905fb02eafa98d575cf8ee792d46 | affected | git | f0b791a006512a48b6348494cb6960598fa99a58 | Unavailable | None listed |
| f6d0775119fb905fb02eafa98d575cf8ee792d46 | affected | git | aa9429edf9fc0e90d6f4da19ea4b5495a54ab117 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 6.0 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 6.0 | Unavailable | None listed |
| 6.1.183 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.151 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.103 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.44 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 7.1.8 | unaffected | semver | Unavailable | 7.1.* | None listed |
| 7.2 | unaffected | original_commit_for_fix | Unavailable | * | None listed |