CVE-2024-43856
Linux Kernel dma devres Double Free Vulnerability
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
INFO
Published Date :
Aug. 17, 2024, 10:15 a.m.
Last Modified :
Aug. 22, 2024, 5:57 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-43856.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-43856 vulnerability anywhere in the article.
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Cyber Security News
Linux Kernal Vulnerability Let Attackers Bypass CPU & Write on Memory
Researchers uncovered a vulnerability in the Linux kernel’s dmam_free_coherent() function, which stems from a race condition caused by the improper order of operations when freeing DMA (Direct Memory ... Read more
The following table lists the changes that have been made to the
CVE-2024-43856 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Aug. 22, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://git.kernel.org/stable/c/1fe97f68fce1ba24bf823bfb0eb0956003473130 No Types Assigned https://git.kernel.org/stable/c/1fe97f68fce1ba24bf823bfb0eb0956003473130 Patch Changed Reference Type https://git.kernel.org/stable/c/22094f5f52e7bc16c5bf9613365049383650b02e No Types Assigned https://git.kernel.org/stable/c/22094f5f52e7bc16c5bf9613365049383650b02e Patch Changed Reference Type https://git.kernel.org/stable/c/257193083e8f43907e99ea633820fc2b3bcd24c7 No Types Assigned https://git.kernel.org/stable/c/257193083e8f43907e99ea633820fc2b3bcd24c7 Patch Changed Reference Type https://git.kernel.org/stable/c/28e8b7406d3a1f5329a03aa25a43aa28e087cb20 No Types Assigned https://git.kernel.org/stable/c/28e8b7406d3a1f5329a03aa25a43aa28e087cb20 Patch Changed Reference Type https://git.kernel.org/stable/c/2f7bbdc744f2e7051d1cb47c8e082162df1923c9 No Types Assigned https://git.kernel.org/stable/c/2f7bbdc744f2e7051d1cb47c8e082162df1923c9 Patch Changed Reference Type https://git.kernel.org/stable/c/87b34c8c94e29fa01d744e5147697f592998d954 No Types Assigned https://git.kernel.org/stable/c/87b34c8c94e29fa01d744e5147697f592998d954 Patch Changed Reference Type https://git.kernel.org/stable/c/f993a4baf6b622232e4c190d34c220179e5d61eb No Types Assigned https://git.kernel.org/stable/c/f993a4baf6b622232e4c190d34c220179e5d61eb Patch Changed Reference Type https://git.kernel.org/stable/c/fe2d246080f035e0af5793cb79067ba125e4fb63 No Types Assigned https://git.kernel.org/stable/c/fe2d246080f035e0af5793cb79067ba125e4fb63 Patch Added CWE NIST CWE-770 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 2.6.21 up to (excluding) 4.19.320 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.282 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.224 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.165 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.103 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.44 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.10.3 -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 19, 2024
Action Type Old Value New Value Added Reference kernel.org https://git.kernel.org/stable/c/fe2d246080f035e0af5793cb79067ba125e4fb63 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/2f7bbdc744f2e7051d1cb47c8e082162df1923c9 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/257193083e8f43907e99ea633820fc2b3bcd24c7 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/87b34c8c94e29fa01d744e5147697f592998d954 [No types assigned] -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 17, 2024
Action Type Old Value New Value Added 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 Added Reference kernel.org https://git.kernel.org/stable/c/f993a4baf6b622232e4c190d34c220179e5d61eb [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/1fe97f68fce1ba24bf823bfb0eb0956003473130 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/22094f5f52e7bc16c5bf9613365049383650b02e [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/28e8b7406d3a1f5329a03aa25a43aa28e087cb20 [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-43856 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-43856
weaknesses.