CVE-2026-90192

CVE CVE-2026-90192EUVD EUVD-2026-81785Published 2026-09-17T16:07:12.000Z

What the advisory describes

In the Linux kernel, the following vulnerability has been resolved: mailbox: qcom-cpucp: handle NULL data in send_data callback mailbox_clear_channel() calls mbox_send_message() with NULL data to notify the remote side that the RX channel has been cleared. qcom_cpucp_mbox_send_data() blindly dereferenced the data pointer, causing a NULL pointer dereference kernel panic when invoked from this path under PREEMPT_RT. Add an explicit NULL check and return early without writing to the TX register, which is the correct behaviour for a channel-clear notification.

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: 6.18.52; patch: 6.12.110; 6.11; patch: 7.2.6; patch: 0; 0e2a9a03106cd5fa0dbc9047675e7645c55e2669 <413b0b94d6d06b8d49735280e86a01dac90cf177; 0e2a9a03106cd5fa0dbc9047675e7645c55e2669 <fc4f2f99530298a1739226947aa76525142d421d; 0e2a9a03106cd5fa0dbc9047675e7645c55e2669 <b3d73e7440e0c40644285be1bda349cdf90122d8; patch: 7.3-rc1; 0e2a9a03106cd5fa0dbc9047675e7645c55e2669 <3d11d2a6c9a10de287e0f1b53a5e65d16afe2760

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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