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CVE-2026-90421

PCI: Fix UAF when probe runs concurrent to dyn ID removal

N/A
Published: September 17, 2026 at 04:09 PM UTC
Updated: October 30, 2026 at 01:20 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
0994375e9614f78657031e04e30019b9cdb627952.6.30994375e9614f78657031e4e30019b9cdb62795
Vendor states this is fixed in 3ffc4c9690c33ee28cdb3d0182b12f9c623e3acc (fixed)
Vendor states this is fixed in 42a5661ff7e4c7d3c5025d0f8e5079fb5479ea49 (fixed)
Vendor states this is fixed in 2.6.30 (unaffected)
Vendor states this is fixed in 6.12.114 (unaffected)
Vendor states this is fixed in 6.18.57 (unaffected)
Vendor states this is fixed in 6.6.160 (unaffected)
Vendor states this is fixed in 7.2.6 (unaffected)
Vendor states this is fixed in 7.3 (unaffected)
Vendor states this is fixed in 7.3-rc1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (6)

Source: cverecord
https://git.kernel.org/stable/c/42a5661ff7e4c7d3c5025d0f8e5079fb5479ea49
Source: cverecord
https://git.kernel.org/stable/c/3ffc4c9690c33ee28cdb3d0182b12f9c623e3acc
Source: cverecord
https://git.kernel.org/stable/c/c36816feff47f676dcc51919777d483f4146c1ee
Source: cverecord
https://git.kernel.org/stable/c/d867db0a2602919510f346bc555f7b3093f6b6cc
Source: cverecord
https://git.kernel.org/stable/c/2cbcb0819c6367e1d5b0792a960594cc19576e23
Source: cverecord
https://git.kernel.org/stable/c/74133e74619d108eeaaa787d78906314d7a7b077

Quick Info

StatusRECEIVED

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