CVE-2024-26894ACPI: processor_idle: Fix memory leak in acpi_processor_power_exit()
- 6.0MediumCVSS base score
- 0.25%Exploitation in 30 daysEPSS · top 83% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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.
Timeline
ID reserved
By Linux
- 58 days later
· 58 days later
Published
- 2 years later
· 2 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADPADP (enrichment) | 3.1 | Medium6.0 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium6.0 | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.25% · top 83% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.0.
Affected products
- affected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea – < d351bcadab6caa6d8ce7159ff4b77e2da35c09fa
- affected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea – < ea96bf3f80625cddba1391a87613356b1b45716d
- affected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea – < c2a30c81bf3cb9033fa9f5305baf7c377075e2e5
- affected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea – < 1cbaf4c793b0808532f4e7b40bc4be7cec2c78f2
- affected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea – < fad9bcd4d754cc689c19dc04d2c44b82c1a5d6c8
- affected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea – < 3d48e5be107429ff5d824e7f2a00d1b610d36fbc
- affected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea – < 8d14a4d0afb49a5b8535d414c782bb334860e73e
- affected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea – < cd5c2d0b09d5b6d3f0a7bbabe6761a4997e9dee9
- affected 3d339dcbb56d8d70c1b959aff87d74adc3a84eea – < e18afcb7b2a12b635ac10081f943fcf84ddacc51
- affected 3.7
- unaffected < 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.*
- unaffected 6.1.83 – ≤ 6.1.*
- unaffected 6.6.23 – ≤ 6.6.*
- unaffected 6.7.11 – ≤ 6.7.*
- unaffected 6.8.2 – ≤ 6.8.*
- unaffected 6.9 – ≤ *
References
References12
- https://git.kernel.org/stable/c/d351bcadab6caa6d8ce7159ff4b77e2da35c09fa (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/ea96bf3f80625cddba1391a87613356b1b45716d (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/c2a30c81bf3cb9033fa9f5305baf7c377075e2e5 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/1cbaf4c793b0808532f4e7b40bc4be7cec2c78f2 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/fad9bcd4d754cc689c19dc04d2c44b82c1a5d6c8 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/3d48e5be107429ff5d824e7f2a00d1b610d36fbc (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/8d14a4d0afb49a5b8535d414c782bb334860e73e (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/cd5c2d0b09d5b6d3f0a7bbabe6761a4997e9dee9 (opens in a new tab)x_transferred
- https://git.kernel.org/stable/c/e18afcb7b2a12b635ac10081f943fcf84ddacc51 (opens in a new tab)x_transferred
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html (opens in a new tab)x_transferred
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html (opens in a new tab)x_transferred
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2024-24156 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2024-26894)Record last updated .