Answer in brief
CVE-2024-26894 records a Medium severity (CVSS 6.0) vulnerability in ACPI: processor_idle: Fix memory leak in acpi_processor_power_exit(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 6.0. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystem (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=3d339dcbb56d8d70c1b959aff87d74adc3a84eea <d351bcadab6caa6d8ce7159ff4b77e2da35c09fa || >=3d339dcbb56d8d70c1b959aff87d74adc3a84eea <ea96bf3f80625cddba1391a87613356b1b45716d || >=3d339dcbb56d8d70c1b959aff87d74adc3a84eea <c2a30c81bf3cb9033fa9f5305baf7c377075e2e5 || >=3d339dcbb56d8d70c1b959aff87d74adc3a84eea <1cbaf4c793b0808532f4e7b40bc4be7cec2c78f2 || >=3d339dcbb56d8d70c1b959aff87d74adc3a84eea <fad9bcd4d754cc689c19dc04d2c44b82c1a5d6c8 || >=3d339dcbb56d8d70c1b959aff87d74adc3a84eea <3d48e5be107429ff5d824e7f2a00d1b610d36fbc || >=3d339dcbb56d8d70c1b959aff87d74adc3a84eea <8d14a4d0afb49a5b8535d414c782bb334860e73e || >=3d339dcbb56d8d70c1b959aff87d74adc3a84eea <cd5c2d0b09d5b6d3f0a7bbabe6761a4997e9dee9 || >=3d339dcbb56d8d70c1b959aff87d74adc3a84eea <e18afcb7b2a12b635ac10081f943fcf84ddacc51 | d351bcadab6caa6d8ce7159ff4b77e2da35c09fa, ea96bf3f80625cddba1391a87613356b1b45716d, c2a30c81bf3cb9033fa9f5305baf7c377075e2e5, 1cbaf4c793b0808532f4e7b40bc4be7cec2c78f2, fad9bcd4d754cc689c19dc04d2c44b82c1a5d6c8, 3d48e5be107429ff5d824e7f2a00d1b610d36fbc, 8d14a4d0afb49a5b8535d414c782bb334860e73e, cd5c2d0b09d5b6d3f0a7bbabe6761a4997e9dee9, e18afcb7b2a12b635ac10081f943fcf84ddacc51 |
| Linux/Linuxgeneric | 3.7 | Not reported |
| Siemens/SIMATIC S7-1500 TM MFP - GNU/Linux subsystemgeneric | >=0 <V1.1.1 | V1.1.1 |
Published upstream
Apr 17, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 15, 2026
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): [<ffffffff993495ed>] kmalloc_trace+0x29d/0x340 [<ffffffff9972f3b3>] acpi_processor_power_init+0xf3/0x1c0 [<ffffffff9972d263>] __acpi_processor_start+0xd3/0xf0 [<ffffffff9972d2bc>] acpi_processor_start+0x2c/0x50 [<ffffffff99805872>] really_probe+0xe2/0x480 [<ffffffff99805c98>] __driver_probe_device+0x78/0x160 [<ffffffff99805daf>] driver_probe_device+0x1f/0x90 [<ffffffff9980601e>] __driver_attach+0xce/0x1c0 [<ffffffff99803170>] bus_for_each_dev+0x70/0xc0 [<ffffffff99804822>] bus_add_driver+0x112/0x210 [<ffffffff99807245>] driver_register+0x55/0x100 [<ffffffff9aee4acb>] acpi_processor_driver_init+0x3b/0xc0 [<ffffffff990012d1>] do_one_initcall+0x41/0x300 [<ffffffff9ae7c4b0>] kernel_init_freeable+0x320/0x470 [<ffffffff99b231f6>] kernel_init+0x16/0x1b0 [<ffffffff99042e6d>] ret_from_fork+0x2d/0x50 Fix this by freeing the CPU idle device after unregistering it.
Quoted source text, attributed separately from HOL analysis.