CVE-2026-68319pds_core: fix deadlock between reset thread and remove
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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.
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Aug 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 81665adf25d28a00a986533f1d3a5df76b79cad9 builds before 90d9f3ef28843e6c35149324b8eefb427a7435c2; 81665adf25d28a00a986533f1d3a5df76b79cad9 builds before 19ef775c91c6bf4bd2b60f6616f4e28b621cdd6a; 81665adf25d28a00a986533f1d3a5df76b79cad9 builds before 54f905821f26d385fba407a920b51f0a752c76dc; from 81665adf25d28a00a986533f1d3a5df76b79cad9 before ab0eec0ff0a421737a37f510ceab5c6ea59cd05a; 38407914d48273d7f8ab765b9243658afe1c3ab6; from 6.8.7 before 6.9 | CNA record |
References
- https://git.kernel.org/stable/c/90d9f3ef28843e6c35149324b8eefb427a7435c2
- https://git.kernel.org/stable/c/19ef775c91c6bf4bd2b60f6616f4e28b621cdd6a
- https://git.kernel.org/stable/c/54f905821f26d385fba407a920b51f0a752c76dc
- https://git.kernel.org/stable/c/ab0eec0ff0a421737a37f510ceab5c6ea59cd05a
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.