{"id":"CVE-2026-90192","revision":"e32761180ba74420b780b84b40282138","records":[{"revision":"e32761180ba74420b780b84b40282138","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90192","aliases":[],"title":"mailbox: qcom-cpucp: handle NULL data in send_data callback","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmailbox: qcom-cpucp: handle NULL data in send_data callback\n\nmailbox_clear_channel() calls mbox_send_message() with NULL data to\nnotify the remote side that the RX channel has been cleared.\nqcom_cpucp_mbox_send_data() blindly dereferenced the data pointer,\ncausing a NULL pointer dereference kernel panic when invoked from\nthis path under PREEMPT_RT.\n\nAdd an explicit NULL check and return early without writing to the\nTX register, which is the correct behaviour for a channel-clear\nnotification.","state":0,"publishedAt":"2026-09-17T16:07:12.995+00:00","modifiedAt":"2026-10-19T08:59:28.843+00:00","affected":[{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/mailbox/qcom-cpucp-mbox.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"0e2a9a03106cd5fa0dbc9047675e7645c55e2669\",\n                            \"lessThan\": \"3d11d2a6c9a10de287e0f1b53a5e65d16afe2760\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0e2a9a03106cd5fa0dbc9047675e7645c55e2669\",\n                            \"lessThan\": \"413b0b94d6d06b8d49735280e86a01dac90cf177\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0e2a9a03106cd5fa0dbc9047675e7645c55e2669\",\n                            \"lessThan\": \"b3d73e7440e0c40644285be1bda349cdf90122d8\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"0e2a9a03106cd5fa0dbc9047675e7645c55e2669\",\n                            \"lessThan\": \"fc4f2f99530298a1739226947aa76525142d421d\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ]\n                }"},{"ecosystem":"Vendor product","name":"Linux","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"product\": \"Linux\",\n                    \"vendor\": \"Linux\",\n                    \"defaultStatus\": \"affected\",\n                    \"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\n                    \"programFiles\": [\n                        \"drivers/mailbox/qcom-cpucp-mbox.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"6.11\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"6.11\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.12.110\",\n                            \"lessThanOrEqual\": \"6.12.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.18.52\",\n                            \"lessThanOrEqual\": \"6.18.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.2.6\",\n                            \"lessThanOrEqual\": \"7.2.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"7.3\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/3d11d2a6c9a10de287e0f1b53a5e65d16afe2760","https://git.kernel.org/stable/c/413b0b94d6d06b8d49735280e86a01dac90cf177","https://git.kernel.org/stable/c/b3d73e7440e0c40644285be1bda349cdf90122d8","https://git.kernel.org/stable/c/fc4f2f99530298a1739226947aa76525142d421d"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90192","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90192","identifiers":["CVE-2026-90192"]},"retained":false,"historicalAffected":[]}],"coverage":[]}