CVE-2026-64603

CVE CVE-2026-64603EUVD EUVD-2026-53789Published 2026-08-06T07:13:55.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: platform/x86: intel-hid: Protect ACPI notify handler against recursion Since commit e2ffcda16290 ("ACPI: OSL: Allow Notify () handlers to run on all CPUs") ACPI notify handlers like the intel-hid notify_handler() may run on multiple CPU cores racing with themselves. On convertibles and detachables (matched by DMI chassis-type 31 and 32 in dmi_auto_add_switch[]) the SW_TABLET_MODE input device is registered lazily from notify_handler() on the first tablet-mode event, via intel_hid_switches_setup(). When two such events race on different CPUs both can pass the !priv->switches check and register the priv->switches input device twice, resulting in a duplicate sysfs entry and a subsequent NULL pointer dereference. This is the same class of bug fixed by commit e075c3b13a0a ("platform/x86: intel-vbtn: Protect ACPI notify handler against recursion") for the sibling intel-vbtn driver. Protect intel-hid notify_handler() from racing with itself with a mutex to fix this.

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 patch: 6.12.96; e2ffcda1629012a2c1a3706432bc45fdc899a584 <a6402808e552e44e9c26a9fe8395ac11703d5800; patch: 0; patch: 6.18.39; e2ffcda1629012a2c1a3706432bc45fdc899a584 <86df6499dfd232fbc1c82c0d6eb9322ca67b8cd0; 6.8; patch: 7.1.4; e2ffcda1629012a2c1a3706432bc45fdc899a584 <eace3b3e729d5ba11794d69acfafb58a7950217c; e2ffcda1629012a2c1a3706432bc45fdc899a584 <c085d82613d5618814b84406c8b2d64f1bc305e7; patch: 7.2-rc1

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

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Linux — Linux

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