{"id":"CVE-2024-26894","revision":null,"records":[{"revision":"a67eeef9cff94a0783c44f065cc37b24","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2024-26894","aliases":[],"title":"ACPI: processor_idle: Fix memory leak in acpi_processor_power_exit()","description":"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 [] kmalloc_trace+0x29d/0x340\n [] acpi_processor_power_init+0xf3/0x1c0\n [] __acpi_processor_start+0xd3/0xf0\n [] acpi_processor_start+0x2c/0x50\n [] really_probe+0xe2/0x480\n [] __driver_probe_device+0x78/0x160\n [] driver_probe_device+0x1f/0x90\n [] __driver_attach+0xce/0x1c0\n [] bus_for_each_dev+0x70/0xc0\n [] bus_add_driver+0x112/0x210\n [] driver_register+0x55/0x100\n [] acpi_processor_driver_init+0x3b/0xc0\n [] do_one_initcall+0x41/0x300\n [] kernel_init_freeable+0x320/0x470\n [] kernel_init+0x16/0x1b0\n [] ret_from_fork+0x2d/0x50\n\nFix this by freeing the CPU idle device after unregistering it.","state":0,"publishedAt":"2024-04-17T10:27:45.96+00:00","modifiedAt":"2026-10-15T00:39:11.582+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/acpi/processor_idle.c\"\n ],\n \"versions\": [\n {\n \"version\": \"3d339dcbb56d8d70c1b959aff87d74adc3a84eea\",\n \"lessThan\": \"d351bcadab6caa6d8ce7159ff4b77e2da35c09fa\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"3d339dcbb56d8d70c1b959aff87d74adc3a84eea\",\n \"lessThan\": \"ea96bf3f80625cddba1391a87613356b1b45716d\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"3d339dcbb56d8d70c1b959aff87d74adc3a84eea\",\n \"lessThan\": \"c2a30c81bf3cb9033fa9f5305baf7c377075e2e5\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"3d339dcbb56d8d70c1b959aff87d74adc3a84eea\",\n \"lessThan\": \"1cbaf4c793b0808532f4e7b40bc4be7cec2c78f2\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"3d339dcbb56d8d70c1b959aff87d74adc3a84eea\",\n \"lessThan\": \"fad9bcd4d754cc689c19dc04d2c44b82c1a5d6c8\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"3d339dcbb56d8d70c1b959aff87d74adc3a84eea\",\n \"lessThan\": \"3d48e5be107429ff5d824e7f2a00d1b610d36fbc\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"3d339dcbb56d8d70c1b959aff87d74adc3a84eea\",\n \"lessThan\": \"8d14a4d0afb49a5b8535d414c782bb334860e73e\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"3d339dcbb56d8d70c1b959aff87d74adc3a84eea\",\n \"lessThan\": \"cd5c2d0b09d5b6d3f0a7bbabe6761a4997e9dee9\",\n \"status\": \"affected\",\n \"versionType\": \"git\"\n },\n {\n \"version\": \"3d339dcbb56d8d70c1b959aff87d74adc3a84eea\",\n \"lessThan\": \"e18afcb7b2a12b635ac10081f943fcf84ddacc51\",\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/acpi/processor_idle.c\"\n ],\n \"versions\": [\n {\n \"version\": \"3.7\",\n \"status\": \"affected\"\n },\n {\n \"version\": \"0\",\n \"lessThan\": \"3.7\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"4.19.311\",\n \"lessThanOrEqual\": \"4.19.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.4.273\",\n \"lessThanOrEqual\": \"5.4.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.10.214\",\n \"lessThanOrEqual\": \"5.10.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"5.15.153\",\n \"lessThanOrEqual\": \"5.15.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.1.83\",\n \"lessThanOrEqual\": \"6.1.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.6.23\",\n \"lessThanOrEqual\": \"6.6.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.7.11\",\n \"lessThanOrEqual\": \"6.7.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.8.2\",\n \"lessThanOrEqual\": \"6.8.*\",\n \"status\": \"unaffected\",\n \"versionType\": \"semver\"\n },\n {\n \"version\": \"6.9\",\n \"lessThanOrEqual\": \"*\",\n \"status\": \"unaffected\",\n \"versionType\": \"original_commit_for_fix\"\n }\n ]\n }"}],"metrics":[],"references":["https://git.kernel.org/stable/c/d351bcadab6caa6d8ce7159ff4b77e2da35c09fa","https://git.kernel.org/stable/c/ea96bf3f80625cddba1391a87613356b1b45716d","https://git.kernel.org/stable/c/c2a30c81bf3cb9033fa9f5305baf7c377075e2e5","https://git.kernel.org/stable/c/1cbaf4c793b0808532f4e7b40bc4be7cec2c78f2","https://git.kernel.org/stable/c/fad9bcd4d754cc689c19dc04d2c44b82c1a5d6c8","https://git.kernel.org/stable/c/3d48e5be107429ff5d824e7f2a00d1b610d36fbc","https://git.kernel.org/stable/c/8d14a4d0afb49a5b8535d414c782bb334860e73e","https://git.kernel.org/stable/c/cd5c2d0b09d5b6d3f0a7bbabe6761a4997e9dee9","https://git.kernel.org/stable/c/e18afcb7b2a12b635ac10081f943fcf84ddacc51"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2024-26894","license":"CVE Program Terms of Use","key":"cve-program:CVE-2024-26894","identifiers":["CVE-2024-26894"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all 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