CVE-2026-68319
pds_core: fix deadlock between reset thread and remove
Description
In the Linux kernel, the following vulnerability has been resolved: pds_core: fix deadlock between reset thread and remove pci_reset_function() acquires device_lock before performing the reset. pdsc_remove() is called by the PCI core with device_lock already held. If pdsc_pci_reset_thread() is running when pdsc_remove() is called, destroy_workqueue() will block waiting for the work to complete, while the work is blocked waiting for device_lock - deadlock. Use pci_try_reset_function() which uses pci_dev_trylock() internally. This acquires both the device lock and the PCI config access lock without blocking - if either lock is contended, it returns -EAGAIN immediately. This avoids the deadlock while also ensuring proper config space access serialization during the reset. The pci_dev_get/put calls are also removed as they were unnecessary - the driver-owned workqueue is destroyed in pdsc_remove(), guaranteeing the work completes before remove returns. The PCI core holds its reference to pci_dev throughout the entire unbind sequence.
INFO
Published Date :
Aug. 10, 2026, 1:20 p.m.
Last Modified :
Aug. 17, 2026, 5:18 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Use pci_try_reset_function instead of pci_reset_function.
- Ensure proper config space access serialization during reset.
- Remove unnecessary pci_dev_get/put calls.
- Destroy driver-owned workqueue in pdsc_remove.
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-2026-68319.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68319 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-2026-68319
weaknesses.
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-2026-68319 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68319 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
Aug. 17, 2026
Action Type Old Value New Value Changed Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '81665adf25d28a00a986533f1d3a5df76b79cad9', 'lessThan': '90d9f3ef28843e6c35149324b8eefb427a7435c2', 'versionType': 'git'}, {'status': 'affected', 'version': '81665adf25d28a00a986533f1d3a5df76b79cad9', 'lessThan': '19ef775c91c6bf4bd2b60f6616f4e28b621cdd6a', 'versionType': 'git'}, {'status': 'affected', 'version': '81665adf25d28a00a986533f1d3a5df76b79cad9', 'lessThan': '54f905821f26d385fba407a920b51f0a752c76dc', 'versionType': 'git'}, {'status': 'affected', 'version': '81665adf25d28a00a986533f1d3a5df76b79cad9', 'lessThan': 'ab0eec0ff0a421737a37f510ceab5c6ea59cd05a', 'versionType': 'git'}, {'status': 'affected', 'version': '38407914d48273d7f8ab765b9243658afe1c3ab6', 'versionType': 'git'}, {'status': 'affected', 'version': '6.8.7', 'lessThan': '6.9', 'versionType': 'semver'}], 'programFiles': ['drivers/net/ethernet/amd/pds_core/core.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.9'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.9', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc5', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/ethernet/amd/pds_core/core.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '81665adf25d28a00a986533f1d3a5df76b79cad9', 'lessThan': '90d9f3ef28843e6c35149324b8eefb427a7435c2', 'versionType': 'git'}, {'status': 'affected', 'version': '81665adf25d28a00a986533f1d3a5df76b79cad9', 'lessThan': '19ef775c91c6bf4bd2b60f6616f4e28b621cdd6a', 'versionType': 'git'}, {'status': 'affected', 'version': '81665adf25d28a00a986533f1d3a5df76b79cad9', 'lessThan': '54f905821f26d385fba407a920b51f0a752c76dc', 'versionType': 'git'}, {'status': 'affected', 'version': '81665adf25d28a00a986533f1d3a5df76b79cad9', 'lessThan': 'ab0eec0ff0a421737a37f510ceab5c6ea59cd05a', 'versionType': 'git'}, {'status': 'affected', 'version': '38407914d48273d7f8ab765b9243658afe1c3ab6', 'versionType': 'git'}, {'status': 'affected', 'version': '6.8.7', 'lessThan': '6.9', 'versionType': 'semver'}], 'programFiles': ['drivers/net/ethernet/amd/pds_core/core.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.9'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.9', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/ethernet/amd/pds_core/core.c'], 'defaultStatus': 'affected'}] -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 10, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '81665adf25d28a00a986533f1d3a5df76b79cad9', 'lessThan': '90d9f3ef28843e6c35149324b8eefb427a7435c2', 'versionType': 'git'}, {'status': 'affected', 'version': '81665adf25d28a00a986533f1d3a5df76b79cad9', 'lessThan': '19ef775c91c6bf4bd2b60f6616f4e28b621cdd6a', 'versionType': 'git'}, {'status': 'affected', 'version': '81665adf25d28a00a986533f1d3a5df76b79cad9', 'lessThan': '54f905821f26d385fba407a920b51f0a752c76dc', 'versionType': 'git'}, {'status': 'affected', 'version': '81665adf25d28a00a986533f1d3a5df76b79cad9', 'lessThan': 'ab0eec0ff0a421737a37f510ceab5c6ea59cd05a', 'versionType': 'git'}, {'status': 'affected', 'version': '38407914d48273d7f8ab765b9243658afe1c3ab6', 'versionType': 'git'}, {'status': 'affected', 'version': '6.8.7', 'lessThan': '6.9', 'versionType': 'semver'}], 'programFiles': ['drivers/net/ethernet/amd/pds_core/core.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.9'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.9', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.12.101', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.42', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.1.6', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc5', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/net/ethernet/amd/pds_core/core.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: pds_core: fix deadlock between reset thread and remove pci_reset_function() acquires device_lock before performing the reset. pdsc_remove() is called by the PCI core with device_lock already held. If pdsc_pci_reset_thread() is running when pdsc_remove() is called, destroy_workqueue() will block waiting for the work to complete, while the work is blocked waiting for device_lock - deadlock. Use pci_try_reset_function() which uses pci_dev_trylock() internally. This acquires both the device lock and the PCI config access lock without blocking - if either lock is contended, it returns -EAGAIN immediately. This avoids the deadlock while also ensuring proper config space access serialization during the reset. The pci_dev_get/put calls are also removed as they were unnecessary - the driver-owned workqueue is destroyed in pdsc_remove(), guaranteeing the work completes before remove returns. The PCI core holds its reference to pci_dev throughout the entire unbind sequence. Added Reference https://git.kernel.org/stable/c/19ef775c91c6bf4bd2b60f6616f4e28b621cdd6a Added Reference https://git.kernel.org/stable/c/54f905821f26d385fba407a920b51f0a752c76dc Added Reference https://git.kernel.org/stable/c/90d9f3ef28843e6c35149324b8eefb427a7435c2 Added Reference https://git.kernel.org/stable/c/ab0eec0ff0a421737a37f510ceab5c6ea59cd05a