CVE-2026-64213
CVE CVE-2026-64213EUVD EUVD-2026-48621Published 2026-07-24T15:23:02.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: hwmon: (lm90) Add lock protection to lm90_alert Sashiko reports: lm90_alert() executes in the smbus alert context and calls lm90_update_confreg() to disable the hardware alert line, without acquiring hwmon_lock. Concurrently, sysfs write operations (such as lm90_write_convrate) hold the hwmon_lock, temporarily modify data->config, and then restore it. If an alert interrupt occurs concurrently with a sysfs write, the sysfs path will overwrite the alert handler's modifications to data->config and the hardware register. This unintentionally re-enables the hardware alert line while the alarm is still active, causing an interrupt storm. Add the missing lock to lm90_alert() to solve the problem.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux 5.3; 7a1d220ccb0cc2b808eb176fb05bf55a38179f3f <b0b66aae8a94c3663d47e4000b0e81b89ce32186; patch: 6.18.34; patch: 0; 7a1d220ccb0cc2b808eb176fb05bf55a38179f3f <873e919e3101063a7a75989510ccfc125a4391cf; patch: 7.0.11; patch: 7.1; 7a1d220ccb0cc2b808eb176fb05bf55a38179f3f <bed1fc32e0eb653806fa98afcf55f9a311fc4ce2
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
An estate covering these products can be recorded in Patchlage. An advisory about them appears in the next morning's situation report.
- Linux — Linux
Does this concern one of your customers?
This page cannot answer that — it does not know your estate. Whoever has recorded their environments gets the answer the morning after publication, together with a paragraph they can forward to the customer unedited.
Try it for 28 daysPatchlage reports hits and suspected hits. About everything else this system says nothing — neither this page nor the situation report ever claims that an estate is safe.