CVE-2022-49002
Intel VT-d IOMMU PCI Device Reference Count Leak
Description
In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init() for_each_pci_dev() is implemented by pci_get_device(). The comment of pci_get_device() says that it will increase the reference count for the returned pci_dev and also decrease the reference count for the input pci_dev @from if it is not NULL. If we break for_each_pci_dev() loop with pdev not NULL, we need to call pci_dev_put() to decrease the reference count. Add the missing pci_dev_put() for the error path to avoid reference count leak.
INFO
Published Date :
Oct. 21, 2024, 8:15 p.m.
Last Modified :
Oct. 25, 2024, 2:24 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-2022-49002.
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).
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The following list is the news that have been mention
CVE-2022-49002 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-49002 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]
Oct. 25, 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/2a8f7b90681472948de172dbbf5a54cd342870aa No Types Assigned https://git.kernel.org/stable/c/2a8f7b90681472948de172dbbf5a54cd342870aa Patch Changed Reference Type https://git.kernel.org/stable/c/4bedbbd782ebbe7287231fea862c158d4f08a9e3 No Types Assigned https://git.kernel.org/stable/c/4bedbbd782ebbe7287231fea862c158d4f08a9e3 Patch Changed Reference Type https://git.kernel.org/stable/c/71c4a621985fc051ab86d3a86c749069a993fcb2 No Types Assigned https://git.kernel.org/stable/c/71c4a621985fc051ab86d3a86c749069a993fcb2 Patch Changed Reference Type https://git.kernel.org/stable/c/876d7bfb89273997056220029ff12b1c2cc4691d No Types Assigned https://git.kernel.org/stable/c/876d7bfb89273997056220029ff12b1c2cc4691d Patch Changed Reference Type https://git.kernel.org/stable/c/a5c65cd56aed027f8a97fda8b691caaeb66d115e No Types Assigned https://git.kernel.org/stable/c/a5c65cd56aed027f8a97fda8b691caaeb66d115e Patch Changed Reference Type https://git.kernel.org/stable/c/bdb613ef179ad4bb9d56a2533e9b30e434f1dfb7 No Types Assigned https://git.kernel.org/stable/c/bdb613ef179ad4bb9d56a2533e9b30e434f1dfb7 Patch Changed Reference Type https://git.kernel.org/stable/c/cbdd83bd2fd67142b03ce9dbdd1eab322ff7321f No Types Assigned https://git.kernel.org/stable/c/cbdd83bd2fd67142b03ce9dbdd1eab322ff7321f Patch Changed Reference Type https://git.kernel.org/stable/c/d47bc9d7bcdbb9adc9703513d964b514fee5b0bf No Types Assigned https://git.kernel.org/stable/c/d47bc9d7bcdbb9adc9703513d964b514fee5b0bf Patch Added CWE NIST NVD-CWE-Other Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 3.15 up to (excluding) 4.9.335 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.301 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.268 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.226 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.158 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.82 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.0.12 *cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.1:rc6:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.1:rc7:*:*:*:*:*:* -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Oct. 21, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: iommu/vt-d: Fix PCI device refcount leak in dmar_dev_scope_init() for_each_pci_dev() is implemented by pci_get_device(). The comment of pci_get_device() says that it will increase the reference count for the returned pci_dev and also decrease the reference count for the input pci_dev @from if it is not NULL. If we break for_each_pci_dev() loop with pdev not NULL, we need to call pci_dev_put() to decrease the reference count. Add the missing pci_dev_put() for the error path to avoid reference count leak. Added Reference kernel.org https://git.kernel.org/stable/c/d47bc9d7bcdbb9adc9703513d964b514fee5b0bf [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/71c4a621985fc051ab86d3a86c749069a993fcb2 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/876d7bfb89273997056220029ff12b1c2cc4691d [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/cbdd83bd2fd67142b03ce9dbdd1eab322ff7321f [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/a5c65cd56aed027f8a97fda8b691caaeb66d115e [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/bdb613ef179ad4bb9d56a2533e9b30e434f1dfb7 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/2a8f7b90681472948de172dbbf5a54cd342870aa [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/4bedbbd782ebbe7287231fea862c158d4f08a9e3 [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-2022-49002 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-2022-49002
weaknesses.