CVE-2026-68317
pds_core: fix auxiliary device add/del races
Description
In the Linux kernel, the following vulnerability has been resolved: pds_core: fix auxiliary device add/del races Two paths add or delete the same slot (pf->vfs[vf_id].padev): a VF's pdsc_reset_done() and the PF's devlink enable_vnet/disable_vnet handler. They serialize on config_lock, but neither guards the slot under it correctly. add() registers and stores a new auxiliary device without first checking the slot, so a second add of an already-populated slot leaks the first device. del() makes that check outside config_lock, so two concurrent dels can both pass it; the first clears the slot, and the second dereferences a NULL pointer. Check and update the slot under config_lock in both paths.
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
- Check and update slot under config_lock.
- Ensure slot is guarded correctly during add/delete operations.
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-2026-68317.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-68317 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-2026-68317
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-2026-68317 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-68317 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': '0861fccd43b8bafb533d97308862d20b7db3a2ad', 'lessThan': '646b58b543f3bb1641e9123b75ff7799fe7b42f1', 'versionType': 'git'}, {'status': 'affected', 'version': 'f41e27b746241e57d968d1d61c008322338ca258', 'lessThan': 'ef194751fed50cf3452017b63f00142a0ab40c70', 'versionType': 'git'}, {'status': 'affected', 'version': 'b699bdc720c0255d1bb76cecba7382c1f2107af5', 'lessThan': 'cf0ed2ba202f5c3b300ec1bf7ff0b5d555f7d518', 'versionType': 'git'}, {'status': 'affected', 'version': 'b699bdc720c0255d1bb76cecba7382c1f2107af5', 'lessThan': 'bdeab32a7a91acd295d52a2d4ab1cc3f2da5e454', 'versionType': 'git'}, {'status': 'affected', 'version': 'b699bdc720c0255d1bb76cecba7382c1f2107af5', 'lessThan': 'bfa33cd513c7ceb93c5a4c30e5662acd73c0a916', 'versionType': 'git'}, {'status': 'affected', 'version': 'fec5f7af1d5f64a38f9224cd27b274d1af55a7ed', 'versionType': 'git'}, {'status': 'affected', 'version': '6.6.90', 'lessThan': '6.6.148', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.12.28', 'lessThan': '6.12.101', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.14.6', 'lessThan': '6.15', 'versionType': 'semver'}], 'programFiles': ['drivers/net/ethernet/amd/pds_core/auxbus.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'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/auxbus.c'], 'defaultStatus': 'affected'}] [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '0861fccd43b8bafb533d97308862d20b7db3a2ad', 'lessThan': '646b58b543f3bb1641e9123b75ff7799fe7b42f1', 'versionType': 'git'}, {'status': 'affected', 'version': 'f41e27b746241e57d968d1d61c008322338ca258', 'lessThan': 'ef194751fed50cf3452017b63f00142a0ab40c70', 'versionType': 'git'}, {'status': 'affected', 'version': 'b699bdc720c0255d1bb76cecba7382c1f2107af5', 'lessThan': 'cf0ed2ba202f5c3b300ec1bf7ff0b5d555f7d518', 'versionType': 'git'}, {'status': 'affected', 'version': 'b699bdc720c0255d1bb76cecba7382c1f2107af5', 'lessThan': 'bdeab32a7a91acd295d52a2d4ab1cc3f2da5e454', 'versionType': 'git'}, {'status': 'affected', 'version': 'b699bdc720c0255d1bb76cecba7382c1f2107af5', 'lessThan': 'bfa33cd513c7ceb93c5a4c30e5662acd73c0a916', 'versionType': 'git'}, {'status': 'affected', 'version': 'fec5f7af1d5f64a38f9224cd27b274d1af55a7ed', 'versionType': 'git'}, {'status': 'affected', 'version': '6.6.90', 'lessThan': '6.6.148', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.12.28', 'lessThan': '6.12.101', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.14.6', 'lessThan': '6.15', 'versionType': 'semver'}], 'programFiles': ['drivers/net/ethernet/amd/pds_core/auxbus.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'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/auxbus.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': '0861fccd43b8bafb533d97308862d20b7db3a2ad', 'lessThan': '646b58b543f3bb1641e9123b75ff7799fe7b42f1', 'versionType': 'git'}, {'status': 'affected', 'version': 'f41e27b746241e57d968d1d61c008322338ca258', 'lessThan': 'ef194751fed50cf3452017b63f00142a0ab40c70', 'versionType': 'git'}, {'status': 'affected', 'version': 'b699bdc720c0255d1bb76cecba7382c1f2107af5', 'lessThan': 'cf0ed2ba202f5c3b300ec1bf7ff0b5d555f7d518', 'versionType': 'git'}, {'status': 'affected', 'version': 'b699bdc720c0255d1bb76cecba7382c1f2107af5', 'lessThan': 'bdeab32a7a91acd295d52a2d4ab1cc3f2da5e454', 'versionType': 'git'}, {'status': 'affected', 'version': 'b699bdc720c0255d1bb76cecba7382c1f2107af5', 'lessThan': 'bfa33cd513c7ceb93c5a4c30e5662acd73c0a916', 'versionType': 'git'}, {'status': 'affected', 'version': 'fec5f7af1d5f64a38f9224cd27b274d1af55a7ed', 'versionType': 'git'}, {'status': 'affected', 'version': '6.6.90', 'lessThan': '6.6.148', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.12.28', 'lessThan': '6.12.101', 'versionType': 'semver'}, {'status': 'affected', 'version': '6.14.6', 'lessThan': '6.15', 'versionType': 'semver'}], 'programFiles': ['drivers/net/ethernet/amd/pds_core/auxbus.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '6.15'}, {'status': 'unaffected', 'version': '0', 'lessThan': '6.15', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '6.6.148', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'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/auxbus.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: pds_core: fix auxiliary device add/del races Two paths add or delete the same slot (pf->vfs[vf_id].padev): a VF's pdsc_reset_done() and the PF's devlink enable_vnet/disable_vnet handler. They serialize on config_lock, but neither guards the slot under it correctly. add() registers and stores a new auxiliary device without first checking the slot, so a second add of an already-populated slot leaks the first device. del() makes that check outside config_lock, so two concurrent dels can both pass it; the first clears the slot, and the second dereferences a NULL pointer. Check and update the slot under config_lock in both paths. Added Reference https://git.kernel.org/stable/c/646b58b543f3bb1641e9123b75ff7799fe7b42f1 Added Reference https://git.kernel.org/stable/c/bdeab32a7a91acd295d52a2d4ab1cc3f2da5e454 Added Reference https://git.kernel.org/stable/c/bfa33cd513c7ceb93c5a4c30e5662acd73c0a916 Added Reference https://git.kernel.org/stable/c/cf0ed2ba202f5c3b300ec1bf7ff0b5d555f7d518 Added Reference https://git.kernel.org/stable/c/ef194751fed50cf3452017b63f00142a0ab40c70