{"id":"CVE-2026-90416","revision":"5351823b4c3448a69e33f158d5aada82","records":[{"revision":"5351823b4c3448a69e33f158d5aada82","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-90416","aliases":[],"title":"RDMA/mlx5: Fix stack out-of-bounds read in cc_params debugfs","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mlx5: Fix stack out-of-bounds read in cc_params debugfs\n\nget_param() reads a congestion parameter as a u32 but formats it with the\nsigned \"%d\" into an 11-byte stack buffer. A value with bit 31 set, such as\n0x80000000, renders as \"-2147483648\\n\" whose full length is 12. snprintf()\nstores only 11 bytes yet returns 12, so simple_read_from_buffer() treats 12\nbytes as valid and reads one byte past lbuf[].\n\nSize the buffer for the widest unsigned decimal, format with \"%u\" to match\nthe u32, and use scnprintf() so the length passed to\nsimple_read_from_buffer() reflects the bytes actually stored.","state":0,"publishedAt":"2026-09-17T16:09:41.372+00:00","modifiedAt":"2026-10-19T09:03:20.401+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/infiniband/hw/mlx5/cong.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4a2da0b8c0782816f3ae6846ae7942fcbb0f8172\",\n                            \"lessThan\": \"1c5b4f76cd73372c5a8a4c91c95d5a31f141e091\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4a2da0b8c0782816f3ae6846ae7942fcbb0f8172\",\n                            \"lessThan\": \"06b62758f81e27ca4c81201c22e3436c6d9ac894\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4a2da0b8c0782816f3ae6846ae7942fcbb0f8172\",\n                            \"lessThan\": \"d809cf3f0ed9255abfc73c4730bcf187151422af\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4a2da0b8c0782816f3ae6846ae7942fcbb0f8172\",\n                            \"lessThan\": \"0b0122fcc923a0271130f5fb71af2cd7e20434d9\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4a2da0b8c0782816f3ae6846ae7942fcbb0f8172\",\n                            \"lessThan\": \"ce8dfd32a33b578c3abf178f67b4c8d36854f041\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4a2da0b8c0782816f3ae6846ae7942fcbb0f8172\",\n                            \"lessThan\": \"4599311e78e88c893ad551aca622de2bfdf1c31f\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4a2da0b8c0782816f3ae6846ae7942fcbb0f8172\",\n                            \"lessThan\": \"c75ee076fa09778a2f9602a972dade4a0b0785f7\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"4a2da0b8c0782816f3ae6846ae7942fcbb0f8172\",\n                            \"lessThan\": \"03826bc1fa6c90405bf05831f2b501a8368dcd27\",\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/infiniband/hw/mlx5/cong.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"4.14\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"4.14\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.10.270\",\n                            \"lessThanOrEqual\": \"5.10.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"5.15.221\",\n                            \"lessThanOrEqual\": \"5.15.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.188\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6.157\",\n                            \"lessThanOrEqual\": \"6.6.*\",\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/1c5b4f76cd73372c5a8a4c91c95d5a31f141e091","https://git.kernel.org/stable/c/06b62758f81e27ca4c81201c22e3436c6d9ac894","https://git.kernel.org/stable/c/d809cf3f0ed9255abfc73c4730bcf187151422af","https://git.kernel.org/stable/c/0b0122fcc923a0271130f5fb71af2cd7e20434d9","https://git.kernel.org/stable/c/ce8dfd32a33b578c3abf178f67b4c8d36854f041","https://git.kernel.org/stable/c/4599311e78e88c893ad551aca622de2bfdf1c31f","https://git.kernel.org/stable/c/c75ee076fa09778a2f9602a972dade4a0b0785f7","https://git.kernel.org/stable/c/03826bc1fa6c90405bf05831f2b501a8368dcd27"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-90416","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-90416","identifiers":["CVE-2026-90416"]},"retained":false,"historicalAffected":[]}],"coverage":[]}