CVE-2022-49678
"Broadcom BCM Linux Kernel Reference Count Leak Vulnerability"
Description
In the Linux kernel, the following vulnerability has been resolved: soc: bcm: brcmstb: pm: pm-arm: Fix refcount leak in brcmstb_pm_probe of_find_matching_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak. In brcmstb_init_sram, it pass dn to of_address_to_resource(), of_address_to_resource() will call of_find_device_by_node() to take reference, so we should release the reference returned by of_find_matching_node().
INFO
Published Date :
Feb. 26, 2025, 7:01 a.m.
Last Modified :
March 11, 2025, 10:12 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-2022-49678.
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-2022-49678 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-49678 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]
Mar. 11, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE NVD-CWE-Other Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:5.19:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.19:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.19:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 from (excluding) 5.4.202 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 from (excluding) 5.10.127 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 from (excluding) 5.15.51 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 from (excluding) 4.19.250 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 from (excluding) 5.18.8 Added Reference Type kernel.org: https://git.kernel.org/stable/c/10ba9d499a9fd82ed40897e734ba19870a879407 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/30bbfeb480ae8b5ee43199d72417b232590440c2 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/37d838de369b07b596c19ff3662bf0293fdb09ee Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/4f5877bdf7b593e988f1924f4c3df6523f80b39c Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/734a4d15142bb4c8ecad2d8ec70d7564e78ae34d Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/dcafd5463d8f20c4f90ddc138a5738adb99f74c8 Types: Patch -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Feb. 26, 2025
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: soc: bcm: brcmstb: pm: pm-arm: Fix refcount leak in brcmstb_pm_probe of_find_matching_node() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak. In brcmstb_init_sram, it pass dn to of_address_to_resource(), of_address_to_resource() will call of_find_device_by_node() to take reference, so we should release the reference returned by of_find_matching_node(). Added Reference https://git.kernel.org/stable/c/10ba9d499a9fd82ed40897e734ba19870a879407 Added Reference https://git.kernel.org/stable/c/30bbfeb480ae8b5ee43199d72417b232590440c2 Added Reference https://git.kernel.org/stable/c/37d838de369b07b596c19ff3662bf0293fdb09ee Added Reference https://git.kernel.org/stable/c/4f5877bdf7b593e988f1924f4c3df6523f80b39c Added Reference https://git.kernel.org/stable/c/734a4d15142bb4c8ecad2d8ec70d7564e78ae34d Added Reference https://git.kernel.org/stable/c/dcafd5463d8f20c4f90ddc138a5738adb99f74c8
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-49678 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-2022-49678
weaknesses.