CVE-2026-93276

CVE CVE-2026-93276EUVD EUVD-2026-86148Published 2026-09-24T15:52:18.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: phy: renesas: phy-rcar-gen3-usb2: Fix devm action registration for disabled VBUS regulator devm_regulator_get_exclusive() initialises the regulator with enable_count = 1, requiring the consumer to disable it before release. The devm disable action was previously only registered when the caller explicitly requested enable, so when the regulator was left in its initial enabled state without an explicit enable call, the cleanup path skipped decrementing enable_count, triggering a WARN_ON during regulator release on device removal. Fix this by always registering the devm disable action based on the actual enabled state via regulator_is_enabled(), regardless of whether the caller requested an explicit enable. This covers both the explicitly enabled case and the initial state set by devm_regulator_get_exclusive().

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 24843404efe47eab1ee88d7475a0be0f2f6fd9db <49c9b71b45081e5e5eeb507a2d6edb80d332dc59; patch: 7.3-rc1; 24843404efe47eab1ee88d7475a0be0f2f6fd9db <935f6e837a83b86b073a7601f699dc2c00e01322; 6.11; 24843404efe47eab1ee88d7475a0be0f2f6fd9db <bf7fefbc26e292c08cfe7b6496b879109ef1475a; patch: 0; patch: 6.18.52; patch: 7.2.6

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

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