ghsa-xfq9-hwv6-6j67
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
ACPI: processor_idle: Fix memory leak in acpi_processor_power_exit()
After unregistering the CPU idle device, the memory associated with it is not freed, leading to a memory leak:
unreferenced object 0xffff896282f6c000 (size 1024):
comm "swapper/0", pid 1, jiffies 4294893170
hex dump (first 32 bytes):
00 00 00 00 0b 00 00 00 00 00 00 00 00 00 00 00 ................
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
backtrace (crc 8836a742):
[
Fix this by freeing the CPU idle device after unregistering it.
{
"affected": [],
"aliases": [
"CVE-2024-26894"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-17T11:15:10Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nACPI: processor_idle: Fix memory leak in acpi_processor_power_exit()\n\nAfter unregistering the CPU idle device, the memory associated with\nit is not freed, leading to a memory leak:\n\nunreferenced object 0xffff896282f6c000 (size 1024):\n comm \"swapper/0\", pid 1, jiffies 4294893170\n hex dump (first 32 bytes):\n 00 00 00 00 0b 00 00 00 00 00 00 00 00 00 00 00 ................\n 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................\n backtrace (crc 8836a742):\n [\u003cffffffff993495ed\u003e] kmalloc_trace+0x29d/0x340\n [\u003cffffffff9972f3b3\u003e] acpi_processor_power_init+0xf3/0x1c0\n [\u003cffffffff9972d263\u003e] __acpi_processor_start+0xd3/0xf0\n [\u003cffffffff9972d2bc\u003e] acpi_processor_start+0x2c/0x50\n [\u003cffffffff99805872\u003e] really_probe+0xe2/0x480\n [\u003cffffffff99805c98\u003e] __driver_probe_device+0x78/0x160\n [\u003cffffffff99805daf\u003e] driver_probe_device+0x1f/0x90\n [\u003cffffffff9980601e\u003e] __driver_attach+0xce/0x1c0\n [\u003cffffffff99803170\u003e] bus_for_each_dev+0x70/0xc0\n [\u003cffffffff99804822\u003e] bus_add_driver+0x112/0x210\n [\u003cffffffff99807245\u003e] driver_register+0x55/0x100\n [\u003cffffffff9aee4acb\u003e] acpi_processor_driver_init+0x3b/0xc0\n [\u003cffffffff990012d1\u003e] do_one_initcall+0x41/0x300\n [\u003cffffffff9ae7c4b0\u003e] kernel_init_freeable+0x320/0x470\n [\u003cffffffff99b231f6\u003e] kernel_init+0x16/0x1b0\n [\u003cffffffff99042e6d\u003e] ret_from_fork+0x2d/0x50\n\nFix this by freeing the CPU idle device after unregistering it.",
"id": "GHSA-xfq9-hwv6-6j67",
"modified": "2024-06-27T12:30:45Z",
"published": "2024-04-17T12:32:05Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-26894"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1cbaf4c793b0808532f4e7b40bc4be7cec2c78f2"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3d48e5be107429ff5d824e7f2a00d1b610d36fbc"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8d14a4d0afb49a5b8535d414c782bb334860e73e"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c2a30c81bf3cb9033fa9f5305baf7c377075e2e5"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cd5c2d0b09d5b6d3f0a7bbabe6761a4997e9dee9"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/d351bcadab6caa6d8ce7159ff4b77e2da35c09fa"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e18afcb7b2a12b635ac10081f943fcf84ddacc51"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ea96bf3f80625cddba1391a87613356b1b45716d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/fad9bcd4d754cc689c19dc04d2c44b82c1a5d6c8"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html"
}
],
"schema_version": "1.4.0",
"severity": []
}