ACPI: processor_idle: Fix memory leak in acpi_processor_power_exit()

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2024-26894
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2024-04-17 11:15:10 UTC
Updated2026-05-12 13:16:15 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 6 MEDIUM from ADP

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H

Problem Types: CWE-770 | CWE-770 CWE-770 Allocation of Resources Without Limits or Throttling

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED6MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary6MEDIUMCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Linux Linux Kernel All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea d351bcadab6caa6d8ce7159ff4b77e2da35c09fa git Not specified
CNA Linux Linux affected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea ea96bf3f80625cddba1391a87613356b1b45716d git Not specified
CNA Linux Linux affected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea c2a30c81bf3cb9033fa9f5305baf7c377075e2e5 git Not specified
CNA Linux Linux affected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea 1cbaf4c793b0808532f4e7b40bc4be7cec2c78f2 git Not specified
CNA Linux Linux affected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea fad9bcd4d754cc689c19dc04d2c44b82c1a5d6c8 git Not specified
CNA Linux Linux affected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea 3d48e5be107429ff5d824e7f2a00d1b610d36fbc git Not specified
CNA Linux Linux affected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea 8d14a4d0afb49a5b8535d414c782bb334860e73e git Not specified
CNA Linux Linux affected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea cd5c2d0b09d5b6d3f0a7bbabe6761a4997e9dee9 git Not specified
CNA Linux Linux affected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea e18afcb7b2a12b635ac10081f943fcf84ddacc51 git Not specified
CNA Linux Linux affected 3.7 Not specified
CNA Linux Linux unaffected 3.7 semver Not specified
CNA Linux Linux unaffected 4.19.311 4.19.* semver Not specified
CNA Linux Linux unaffected 5.4.273 5.4.* semver Not specified
CNA Linux Linux unaffected 5.10.214 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.153 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.83 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.23 6.6.* semver Not specified
CNA Linux Linux unaffected 6.7.11 6.7.* semver Not specified
CNA Linux Linux unaffected 6.8.2 6.8.* semver Not specified
CNA Linux Linux unaffected 6.9 * original_commit_for_fix Not specified
ADP Siemens SIMATIC S7-1500 TM MFP - GNU/Linux Subsystem affected * custom Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/cd5c2d0b09d5b6d3f0a7bbabe6761a4997e9dee9 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/e18afcb7b2a12b635ac10081f943fcf84ddacc51 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2024/06/msg00017.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
git.kernel.org/stable/c/8d14a4d0afb49a5b8535d414c782bb334860e73e af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/3d48e5be107429ff5d824e7f2a00d1b610d36fbc af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
cert-portal.siemens.com/productcert/html/ssa-265688.html 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e cert-portal.siemens.com
git.kernel.org/stable/c/ea96bf3f80625cddba1391a87613356b1b45716d af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/c2a30c81bf3cb9033fa9f5305baf7c377075e2e5 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/1cbaf4c793b0808532f4e7b40bc4be7cec2c78f2 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/d351bcadab6caa6d8ce7159ff4b77e2da35c09fa af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
git.kernel.org/stable/c/fad9bcd4d754cc689c19dc04d2c44b82c1a5d6c8 af854a3a-2127-422b-91ae-364da2661108 git.kernel.org Patch
lists.debian.org/debian-lts-announce/2024/06/msg00020.html af854a3a-2127-422b-91ae-364da2661108 lists.debian.org Mailing List, Third Party Advisory
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