Linux Kernel up to 6.1.141/6.6.93/6.12.33/6.15.2 sun8i_ce_cipher_prepare allocation of resources

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4.9$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in Linux Kernel up to 6.1.141/6.6.93/6.12.33/6.15.2. This vulnerability affects the function sun8i_ce_cipher_prepare. The manipulation leads to allocation of resources. This vulnerability is listed as CVE-2025-38300. There is no available exploit. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.1.141/6.6.93/6.12.33/6.15.2 and classified as problematic. This issue affects the function sun8i_ce_cipher_prepare. The manipulation with an unknown input leads to a allocation of resources vulnerability. Using CWE to declare the problem leads to CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. The impact remains unknown. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: crypto: sun8i-ce-cipher - fix error handling in sun8i_ce_cipher_prepare() Fix two DMA cleanup issues on the error path in sun8i_ce_cipher_prepare(): 1] If dma_map_sg() fails for areq->dst, the device driver would try to free DMA memory it has not allocated in the first place. To fix this, on the "theend_sgs" error path, call dma unmap only if the corresponding dma map was successful. 2] If the dma_map_single() call for the IV fails, the device driver would try to free an invalid DMA memory address on the "theend_iv" path: ------------[ cut here ]------------ DMA-API: sun8i-ce 1904000.crypto: device driver tries to free an invalid DMA memory address WARNING: CPU: 2 PID: 69 at kernel/dma/debug.c:968 check_unmap+0x123c/0x1b90 Modules linked in: skcipher_example(O+) CPU: 2 UID: 0 PID: 69 Comm: 1904000.crypto- Tainted: G O 6.15.0-rc3+ #24 PREEMPT Tainted: [O]=OOT_MODULE Hardware name: OrangePi Zero2 (DT) pc : check_unmap+0x123c/0x1b90 lr : check_unmap+0x123c/0x1b90 ... Call trace: check_unmap+0x123c/0x1b90 (P) debug_dma_unmap_page+0xac/0xc0 dma_unmap_page_attrs+0x1f4/0x5fc sun8i_ce_cipher_do_one+0x1bd4/0x1f40 crypto_pump_work+0x334/0x6e0 kthread_worker_fn+0x21c/0x438 kthread+0x374/0x664 ret_from_fork+0x10/0x20 ---[ end trace 0000000000000000 ]--- To fix this, check for !dma_mapping_error() before calling dma_unmap_single() on the "theend_iv" path.

It is possible to read the advisory at git.kernel.org. The identification of this vulnerability is CVE-2025-38300 since 04/16/2025. The exploitation is known to be difficult. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 265934 (Ubuntu 24.04 LTS / 25.04 : Linux kernel vulnerabilities (USN-7769-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.1.142, 6.6.94, 6.12.34, 6.15.3 or 6.16-rc1 eliminates this vulnerability. Applying the patch a0ac3f85b2e3ef529e852f252a70311f9029d5e6/c62b79c1c51303dbcb6edfa4de0ee176f4934c52/19d267d9fad00d94ad8477899e38ed7c11f33fb6/4051250e5db489f8ad65fc337e2677b9b568ac72/f31adc3e356f7350d4a4d68c98d3f60f2f6e26b3 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (265934) and CERT Bund (WID-SEC-2025-1522). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • IBM QRadar SIEM
  • SUSE openSUSE
  • RESF Rocky Linux
  • Open Source Linux Kernel
  • Dell Avamar
  • Dell NetWorker

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.0
VulDB Meta Temp Score: 4.9

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Allocation of resources
CWE: CWE-770 / CWE-400 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 265934
Nessus Name: Ubuntu 24.04 LTS / 25.04 : Linux kernel vulnerabilities (USN-7769-1)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.1.142/6.6.94/6.12.34/6.15.3/6.16-rc1
Patch: a0ac3f85b2e3ef529e852f252a70311f9029d5e6/c62b79c1c51303dbcb6edfa4de0ee176f4934c52/19d267d9fad00d94ad8477899e38ed7c11f33fb6/4051250e5db489f8ad65fc337e2677b9b568ac72/f31adc3e356f7350d4a4d68c98d3f60f2f6e26b3

Timelineinfo

04/16/2025 CVE reserved
07/10/2025 +85 days Advisory disclosed
07/10/2025 +0 days VulDB entry created
12/19/2025 +162 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-38300 (🔒)
GCVE (CVE): GCVE-0-2025-38300
GCVE (VulDB): GCVE-100-315923
CERT Bund: WID-SEC-2025-1522 - Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Entryinfo

Created: 07/10/2025 10:16
Updated: 12/19/2025 19:49
Changes: 07/10/2025 10:16 (57), 09/28/2025 00:44 (2), 10/11/2025 11:18 (7), 11/02/2025 18:59 (1), 12/07/2025 23:05 (1), 12/19/2025 19:49 (12)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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