CVE-2026-90352 PUBLISHED

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

Assigner: Linux
Reserved: 11.09.2026 Published: 17.09.2026 Updated: 17.09.2026

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().

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from f68d67623dec9445960b52a0e9e8e60297596b4b to 8a2e38019846da29a112fac4dd96fe5bfa298faf (excl.)
  • affected from f68d67623dec9445960b52a0e9e8e60297596b4b to 2a434d2637b9c9be9bcc8a84dc46880cc1446643 (excl.)
  • affected from f68d67623dec9445960b52a0e9e8e60297596b4b to 5c30a6350a300fbb800831f1b4373b2f59e03410 (excl.)
  • affected from f68d67623dec9445960b52a0e9e8e60297596b4b to ed5cc46a3c8f4fe7f549c661914d8d835169acc0 (excl.)
  • affected from f68d67623dec9445960b52a0e9e8e60297596b4b to fb9c7b4c238b4e5469a11a1fb8cf332f6193b995 (excl.)
  • affected from f68d67623dec9445960b52a0e9e8e60297596b4b to 8370aebd26a9dfa2e0de665e3ab504c0e97ee730 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 5.19 is affected
  • unaffected from 0 to 5.19 (excl.)
  • unaffected from 6.1.188 to 6.1.* (incl.)
  • unaffected from 6.6.157 to 6.6.* (incl.)
  • unaffected from 6.12.110 to 6.12.* (incl.)
  • unaffected from 6.18.52 to 6.18.* (incl.)
  • unaffected from 7.2.6 to 7.2.* (incl.)
  • unaffected from 7.3-rc1 to * (incl.)

References