{"id":"CVE-2023-53261","revision":null,"records":[{"revision":"8bb0bd4d3bea4a168fc3ecec7aac6f02","observedAt":"2026-10-30T13:45:33.454+00:00","statement":{"source":"cve-program","id":"CVE-2023-53261","aliases":[],"title":"coresight: Fix memory leak in acpi_buffer->pointer","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncoresight: Fix memory leak in acpi_buffer->pointer\n\nThere are memory leaks reported by kmemleak:\n...\nunreferenced object 0xffff00213c141000 (size 1024):\n  comm \"systemd-udevd\", pid 2123, jiffies 4294909467 (age 6062.160s)\n  hex dump (first 32 bytes):\n    04 00 00 00 02 00 00 00 18 10 14 3c 21 00 ff ff  ...........<!...\n    00 00 00 00 00 00 00 00 03 00 00 00 10 00 00 00  ................\n  backtrace:\n    [<000000004b7c9001>] __kmem_cache_alloc_node+0x2f8/0x348\n    [<00000000b0fc7ceb>] __kmalloc+0x58/0x108\n    [<0000000064ff4695>] acpi_os_allocate+0x2c/0x68\n    [<000000007d57d116>] acpi_ut_initialize_buffer+0x54/0xe0\n    [<0000000024583908>] acpi_evaluate_object+0x388/0x438\n    [<0000000017b2e72b>] acpi_evaluate_object_typed+0xe8/0x240\n    [<000000005df0eac2>] coresight_get_platform_data+0x1b4/0x988 [coresight]\n...\n\nThe ACPI buffer memory (buf.pointer) should be freed. But the buffer\nis also used after returning from acpi_get_dsd_graph().\nMove the temporary variables buf to acpi_coresight_parse_graph(),\nand free it before the function return to prevent memory leak.","state":0,"publishedAt":"2025-09-15T14:46:33.065+00:00","modifiedAt":"2026-10-30T12:17:28.351+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/hwtracing/coresight/coresight-platform.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"76ffa5ab5b79c250b9744b7f8bdd835db426a1ae\",\n                            \"lessThan\": \"10bbb7efcad40a06d7acfc0a14af21c19b496eff\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"76ffa5ab5b79c250b9744b7f8bdd835db426a1ae\",\n                            \"lessThan\": \"d1b60e7c9fee34eaedf1fc4e0471f75b33f83a4a\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        },\n                        {\n                            \"version\": \"76ffa5ab5b79c250b9744b7f8bdd835db426a1ae\",\n                            \"lessThan\": \"1a9e02673e2550f5612099e64e8761f0c8fc0f50\",\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/hwtracing/coresight/coresight-platform.c\"\n                    ],\n                    \"versions\": [\n                        {\n                            \"version\": \"5.3\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \"0\",\n                            \"lessThan\": \"5.3\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.1.191\",\n                            \"lessThanOrEqual\": \"6.1.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.5.3\",\n                            \"lessThanOrEqual\": \"6.5.*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"semver\"\n                        },\n                        {\n                            \"version\": \"6.6\",\n                            \"lessThanOrEqual\": \"*\",\n                            \"status\": \"unaffected\",\n                            \"versionType\": \"original_commit_for_fix\"\n                        }\n                    ]\n                }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/10bbb7efcad40a06d7acfc0a14af21c19b496eff","https://git.kernel.org/stable/c/d1b60e7c9fee34eaedf1fc4e0471f75b33f83a4a","https://git.kernel.org/stable/c/1a9e02673e2550f5612099e64e8761f0c8fc0f50"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2023-53261","license":"CVE Program Terms of Use","key":"cve-program:CVE-2023-53261","identifiers":["CVE-2023-53261"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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