In the Linux kernel, the following vulnerability has been resolved:
PCI: Fix UAF when probe runs concurrent to dyn ID removal
Dynamic IDs are only guaranteed to be valid when dynids.lock is held,
as remove_id_store() can free the node. Thus, make a copy in
pci_match_device(). Also, clarify that the id parameter is only valid
during probe.
CVE-2026-90421
NONE
EPSS 0.21%
Updated Oct 19, 2026
Linux
https://git.kernel.org/stable/c/3ffc4c9690c33ee28cdb3d0182b12f9c623e3acc
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/42a5661ff7e4c7d3c5025d0f8e5079fb5479ea49
416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c36816feff47f676dcc51919777d483f4146c1ee
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVE Details
CVE ID
CVE-2026-90421
Published Date
Sep 17, 2026
Vendor
Linux
Severity
NONE
Exploit Prediction (EPSS)
Probability of Exploit
0.21%
Likelihood of exploitation in next 30 days
Percentile:
10.0th percentile (higher than 10.0% of all CVEs)
Standard patching cycle
Impact
Minimal impact
Source
View Advisory