ACPI: processor_idle: Fix memory leak in acpi_processor_power_exit() (Linux Linux)

CVE-2024-26894
MEDIUM 6.0

At a glance

Source
NVD
EPSS
EPSS 0.25 % · percentile 17 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Modified

Description

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.

Weaknesses (CWE)

  • CWE-770 — Allocation of Resources Without Limits or Throttling

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 6.0CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:HCISA-ADP
CVSS 3.1MEDIUM 6.0CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:HNVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea < d351bcadab6caa6d8ce7159ff4b77e2da35c09fa ; affected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea < ea96bf3f80625cddba1391a87613356b1b45716d ; affected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea < c2a30c81bf3cb9033fa9f5305baf7c377075e2e5 ; affected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea < 1cbaf4c793b0808532f4e7b40bc4be7cec2c78f2 ; affected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea < fad9bcd4d754cc689c19dc04d2c44b82c1a5d6c8 ; affected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea < 3d48e5be107429ff5d824e7f2a00d1b610d36fbc
Linux · Linuxaffected 3.7 ; unaffected 0 < 3.7 ; unaffected 4.19.311 ≤ 4.19.* ; unaffected 5.4.273 ≤ 5.4.* ; unaffected 5.10.214 ≤ 5.10.* ; unaffected 5.15.153 ≤ 5.15.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD