Bug 2432668 (CVE-2026-23013) - CVE-2026-23013 kernel: net: octeon_ep_vf: fix free_irq dev_id mismatch in IRQ rollback
Summary: CVE-2026-23013 kernel: net: octeon_ep_vf: fix free_irq dev_id mismatch in IRQ...
Keywords:
Status: NEW
Alias: CVE-2026-23013
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-01-25 15:02 UTC by OSIDB Bzimport
Modified: 2026-01-26 17:58 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-01-25 15:02:16 UTC
In the Linux kernel, the following vulnerability has been resolved:

net: octeon_ep_vf: fix free_irq dev_id mismatch in IRQ rollback

octep_vf_request_irqs() requests MSI-X queue IRQs with dev_id set to
ioq_vector. If request_irq() fails part-way, the rollback loop calls
free_irq() with dev_id set to 'oct', which does not match the original
dev_id and may leave the irqaction registered.

This can keep IRQ handlers alive while ioq_vector is later freed during
unwind/teardown, leading to a use-after-free or crash when an interrupt
fires.

Fix the error path to free IRQs with the same ioq_vector dev_id used
during request_irq().


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