CVE-2024-40945
AMD IOMMU Null Pointer Dereference Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: iommu: Return right value in iommu_sva_bind_device() iommu_sva_bind_device() should return either a sva bond handle or an ERR_PTR value in error cases. Existing drivers (idxd and uacce) only check the return value with IS_ERR(). This could potentially lead to a kernel NULL pointer dereference issue if the function returns NULL instead of an error pointer. In reality, this doesn't cause any problems because iommu_sva_bind_device() only returns NULL when the kernel is not configured with CONFIG_IOMMU_SVA. In this case, iommu_dev_enable_feature(dev, IOMMU_DEV_FEAT_SVA) will return an error, and the device drivers won't call iommu_sva_bind_device() at all.
INFO
Published Date :
July 12, 2024, 1:15 p.m.
Last Modified :
Feb. 21, 2025, 2:15 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-2024-40945.
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-2024-40945 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-40945 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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CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 21, 2025
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/6325eab6c108fed27f60ff51852e3eac0ba23f3f -
Initial Analysis by [email protected]
Feb. 03, 2025
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 Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.2 up to (excluding) 5.4.279 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.221 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.162 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.6.35 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.9.6 *cpe:2.3:o:linux:linux_kernel:6.10:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.10:rc2:*:*:*:*:*:* Changed Reference Type https://git.kernel.org/stable/c/2973b8e7d127754de9013177c41c0b5547406998 No Types Assigned https://git.kernel.org/stable/c/2973b8e7d127754de9013177c41c0b5547406998 Patch Changed Reference Type https://git.kernel.org/stable/c/2973b8e7d127754de9013177c41c0b5547406998 No Types Assigned https://git.kernel.org/stable/c/2973b8e7d127754de9013177c41c0b5547406998 Patch Changed Reference Type https://git.kernel.org/stable/c/61a96da9649a6b6a1a5d5bde9374b045fdb5c12e No Types Assigned https://git.kernel.org/stable/c/61a96da9649a6b6a1a5d5bde9374b045fdb5c12e Patch Changed Reference Type https://git.kernel.org/stable/c/61a96da9649a6b6a1a5d5bde9374b045fdb5c12e No Types Assigned https://git.kernel.org/stable/c/61a96da9649a6b6a1a5d5bde9374b045fdb5c12e Patch Changed Reference Type https://git.kernel.org/stable/c/700f564758882db7c039dfba9443fe762561a3f8 No Types Assigned https://git.kernel.org/stable/c/700f564758882db7c039dfba9443fe762561a3f8 Patch Changed Reference Type https://git.kernel.org/stable/c/700f564758882db7c039dfba9443fe762561a3f8 No Types Assigned https://git.kernel.org/stable/c/700f564758882db7c039dfba9443fe762561a3f8 Patch Changed Reference Type https://git.kernel.org/stable/c/7388ae6f26c0ba95f70cc96bf9c5d5cb06c908b6 No Types Assigned https://git.kernel.org/stable/c/7388ae6f26c0ba95f70cc96bf9c5d5cb06c908b6 Patch Changed Reference Type https://git.kernel.org/stable/c/7388ae6f26c0ba95f70cc96bf9c5d5cb06c908b6 No Types Assigned https://git.kernel.org/stable/c/7388ae6f26c0ba95f70cc96bf9c5d5cb06c908b6 Patch Changed Reference Type https://git.kernel.org/stable/c/89e8a2366e3bce584b6c01549d5019c5cda1205e No Types Assigned https://git.kernel.org/stable/c/89e8a2366e3bce584b6c01549d5019c5cda1205e Patch Changed Reference Type https://git.kernel.org/stable/c/89e8a2366e3bce584b6c01549d5019c5cda1205e No Types Assigned https://git.kernel.org/stable/c/89e8a2366e3bce584b6c01549d5019c5cda1205e Patch Changed Reference Type https://git.kernel.org/stable/c/cf34f8f66982a36e5cba0d05781b21ec9606b91e No Types Assigned https://git.kernel.org/stable/c/cf34f8f66982a36e5cba0d05781b21ec9606b91e Patch Changed Reference Type https://git.kernel.org/stable/c/cf34f8f66982a36e5cba0d05781b21ec9606b91e No Types Assigned https://git.kernel.org/stable/c/cf34f8f66982a36e5cba0d05781b21ec9606b91e Patch -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/2973b8e7d127754de9013177c41c0b5547406998 Added Reference https://git.kernel.org/stable/c/61a96da9649a6b6a1a5d5bde9374b045fdb5c12e Added Reference https://git.kernel.org/stable/c/700f564758882db7c039dfba9443fe762561a3f8 Added Reference https://git.kernel.org/stable/c/7388ae6f26c0ba95f70cc96bf9c5d5cb06c908b6 Added Reference https://git.kernel.org/stable/c/89e8a2366e3bce584b6c01549d5019c5cda1205e Added Reference https://git.kernel.org/stable/c/cf34f8f66982a36e5cba0d05781b21ec9606b91e -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 12, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: iommu: Return right value in iommu_sva_bind_device() iommu_sva_bind_device() should return either a sva bond handle or an ERR_PTR value in error cases. Existing drivers (idxd and uacce) only check the return value with IS_ERR(). This could potentially lead to a kernel NULL pointer dereference issue if the function returns NULL instead of an error pointer. In reality, this doesn't cause any problems because iommu_sva_bind_device() only returns NULL when the kernel is not configured with CONFIG_IOMMU_SVA. In this case, iommu_dev_enable_feature(dev, IOMMU_DEV_FEAT_SVA) will return an error, and the device drivers won't call iommu_sva_bind_device() at all. Added Reference kernel.org https://git.kernel.org/stable/c/700f564758882db7c039dfba9443fe762561a3f8 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/cf34f8f66982a36e5cba0d05781b21ec9606b91e [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/2973b8e7d127754de9013177c41c0b5547406998 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/7388ae6f26c0ba95f70cc96bf9c5d5cb06c908b6 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/61a96da9649a6b6a1a5d5bde9374b045fdb5c12e [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/89e8a2366e3bce584b6c01549d5019c5cda1205e [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-2024-40945 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-2024-40945
weaknesses.