CVE-2024-43856

Aug. 22, 2024, 5:57 p.m.

5.5
Medium

Description

In the Linux kernel, the following vulnerability has been resolved: dma: fix call order in dmam_free_coherent dmam_free_coherent() frees a DMA allocation, which makes the freed vaddr available for reuse, then calls devres_destroy() to remove and free the data structure used to track the DMA allocation. Between the two calls, it is possible for a concurrent task to make an allocation with the same vaddr and add it to the devres list. If this happens, there will be two entries in the devres list with the same vaddr and devres_destroy() can free the wrong entry, triggering the WARN_ON() in dmam_match. Fix by destroying the devres entry before freeing the DMA allocation. kokonut //net/encryption http://sponge2/b9145fe6-0f72-4325-ac2f-a84d81075b03

Product(s) Impacted

Vendor Product Versions
Linux
  • Linux Kernel
  • *

Weaknesses

CWE-770
Allocation of Resources Without Limits or Throttling
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.

*CPE(s)

Type Vendor Product Version Update Edition Language Software Edition Target Software Target Hardware Other Information
o linux linux_kernel / / / / / / / /
o linux linux_kernel / / / / / / / /
o linux linux_kernel / / / / / / / /
o linux linux_kernel / / / / / / / /
o linux linux_kernel / / / / / / / /
o linux linux_kernel / / / / / / / /
o linux linux_kernel / / / / / / / /

References

https://git.kernel.org/stable/c/1fe97f68fce1ba24bf823bfb0eb0956003473130
https://git.kernel.org/stable/c/22094f5f52e7bc16c5bf9613365049383650b02e
https://git.kernel.org/stable/c/257193083e8f43907e99ea633820fc2b3bcd24c7
https://git.kernel.org/stable/c/28e8b7406d3a1f5329a03aa25a43aa28e087cb20
https://git.kernel.org/stable/c/2f7bbdc744f2e7051d1cb47c8e082162df1923c9
https://git.kernel.org/stable/c/87b34c8c94e29fa01d744e5147697f592998d954
https://git.kernel.org/stable/c/f993a4baf6b622232e4c190d34c220179e5d61eb
https://git.kernel.org/stable/c/fe2d246080f035e0af5793cb79067ba125e4fb63

Tags

416baaa9-dc9f-4396-8d5f-8c081fb06d67
CWE-770
2024-08-17
CVE-2024-43856

CVSS Score

5.5 / 10

CVSS Data

  • Attack Vector: LOCAL
  • Attack Complexity: LOW
  • Privileges Required: LOW
  • Scope: UNCHANGED
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: HIGH
    • View Vector String

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

Date

  • Published: Aug. 17, 2024, 10:15 a.m.
  • Last Modified: Aug. 22, 2024, 5:57 p.m.

Status : Analyzed

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

416baaa9-dc9f-4396-8d5f-8c081fb06d67

*Disclaimer: Some vulnerabilities do not have an associated CPE. To enhance the data, we use AI to infer CPEs based on CVE details. This is an automated process and might not always be accurate.