{ "data_version": "4.0", "data_type": "CVE", "data_format": "MITRE", "CVE_data_meta": { "ID": "CVE-2024-39462", "ASSIGNER": "cve@kernel.org", "STATE": "PUBLIC" }, "description": { "description_data": [ { "lang": "eng", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nclk: bcm: dvp: Assign ->num before accessing ->hws\n\nCommit f316cdff8d67 (\"clk: Annotate struct clk_hw_onecell_data with\n__counted_by\") annotated the hws member of 'struct clk_hw_onecell_data'\nwith __counted_by, which informs the bounds sanitizer about the number\nof elements in hws, so that it can warn when hws is accessed out of\nbounds. As noted in that change, the __counted_by member must be\ninitialized with the number of elements before the first array access\nhappens, otherwise there will be a warning from each access prior to the\ninitialization because the number of elements is zero. This occurs in\nclk_dvp_probe() due to ->num being assigned after ->hws has been\naccessed:\n\n UBSAN: array-index-out-of-bounds in drivers/clk/bcm/clk-bcm2711-dvp.c:59:2\n index 0 is out of range for type 'struct clk_hw *[] __counted_by(num)' (aka 'struct clk_hw *[]')\n\nMove the ->num initialization to before the first access of ->hws, which\nclears up the warning." } ] }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "affects": { "vendor": { "vendor_data": [ { "vendor_name": "Linux", "product": { "product_data": [ { "product_name": "Linux", "version": { "version_data": [ { "version_affected": "<", "version_name": "f316cdff8d67", "version_value": "0dc913217fb7" }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "versions": [ { "version": "6.6", "status": "affected" }, { "version": "0", "lessThan": "6.6", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.34", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.9.5", "lessThanOrEqual": "6.9.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.10", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ], "defaultStatus": "affected" } } ] } } ] } } ] } }, "references": { "reference_data": [ { "url": "https://git.kernel.org/stable/c/0dc913217fb79096597005bba9ba738e2db5cd02", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/0dc913217fb79096597005bba9ba738e2db5cd02" }, { "url": "https://git.kernel.org/stable/c/a1dd92fca0d6b58b55ed0484f75d4205dbb77010", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/a1dd92fca0d6b58b55ed0484f75d4205dbb77010" }, { "url": "https://git.kernel.org/stable/c/9368cdf90f52a68120d039887ccff74ff33b4444", "refsource": "MISC", "name": "https://git.kernel.org/stable/c/9368cdf90f52a68120d039887ccff74ff33b4444" } ] }, "generator": { "engine": "bippy-9e1c9544281a" } }