Bug 2536727 (CVE-2026-90352) - CVE-2026-90352 kernel: wifi: mt76: mt7915: release hif2 reference on probe IRQ failure
Summary: CVE-2026-90352 kernel: wifi: mt76: mt7915: release hif2 reference on probe IR...
Keywords:
Status: NEW
Alias: CVE-2026-90352
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-17 19:21 UTC by OSIDB Bzimport
Modified: 2026-10-05 13:40 UTC (History)
17 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-09-17 19:21:38 UTC 
In the Linux kernel, the following vulnerability has been resolved:

wifi: mt76: mt7915: release hif2 reference on probe IRQ failure

The hif2 reference obtained by mt7915_pci_init_hif2() is only released on
error paths that key off dev->hif2, which is not assigned until after the
IRQ setup. If pci_alloc_irq_vectors() or the primary devm_request_irq()
fails, the reference leaks. Drop it explicitly on those paths via
mt7915_put_hif2().
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