CVE-2023-53261
Full vulnerability record from the local CVENow database.
Description
In the Linux kernel, the following vulnerability has been resolved: coresight: Fix memory leak in acpi_buffer->pointer There are memory leaks reported by kmemleak: ... unreferenced object 0xffff00213c141000 (size 1024): comm "systemd-udevd", pid 2123, jiffies 4294909467 (age 6062.160s) hex dump (first 32 bytes): 04 00 00 00 02 00 00 00 18 10 14 3c 21 00 ff ff ...........<!... 00 00 00 00 00 00 00 00 03 00 00 00 10 00 00 00 ................ backtrace: [<000000004b7c9001>] __kmem_cache_alloc_node+0x2f8/0x348 [<00000000b0fc7ceb>] __kmalloc+0x58/0x108 [<0000000064ff4695>] acpi_os_allocate+0x2c/0x68 [<000000007d57d116>] acpi_ut_initialize_buffer+0x54/0xe0 [<0000000024583908>] acpi_evaluate_object+0x388/0x438 [<0000000017b2e72b>] acpi_evaluate_object_typed+0xe8/0x240 [<000000005df0eac2>] coresight_get_platform_data+0x1b4/0x988 [coresight] ... The ACPI buffer memory (buf.pointer) should be freed. But the buffer is also used after returning from acpi_get_dsd_graph(). Move the temporary variables buf to acpi_coresight_parse_graph(), and free it before the function return to prevent memory leak.
Severity
MEDIUM
CVSS score
5.5
(v3.1)
Vulnerability status
Modified
Source identifier
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Published
2025-09-15 15:15:53.540000
Last modified
2026-10-30 13:17:17.997000
View original CVE JSON
{
"id": "CVE-2023-53261",
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"published": "2025-09-15T15:15:53.540",
"lastModified": "2026-10-30T13:17:17.997",
"vulnStatus": "Modified",
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
}
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"affected": [
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"affectedData": [
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"id": "CVE-2023-53261",
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"description": [
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