Bug 2367501 (CVE-2025-37933) - CVE-2025-37933 kernel: octeon_ep: Fix host hang issue during device reboot
Summary: CVE-2025-37933 kernel: octeon_ep: Fix host hang issue during device reboot
Keywords:
Status: NEW
Alias: CVE-2025-37933
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: 2025-05-20 16:01 UTC by OSIDB Bzimport
Modified: 2025-05-22 12:06 UTC (History)
4 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed:
Embargoed:


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Description OSIDB Bzimport 2025-05-20 16:01:14 UTC
In the Linux kernel, the following vulnerability has been resolved:

octeon_ep: Fix host hang issue during device reboot

When the host loses heartbeat messages from the device,
the driver calls the device-specific ndo_stop function,
which frees the resources. If the driver is unloaded in
this scenario, it calls ndo_stop again, attempting to free
resources that have already been freed, leading to a host
hang issue. To resolve this, dev_close should be called
instead of the device-specific stop function.dev_close
internally calls ndo_stop to stop the network interface
and performs additional cleanup tasks. During the driver
unload process, if the device is already down, ndo_stop
is not called.

Comment 1 Avinash Hanwate 2025-05-21 08:17:18 UTC
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025052006-CVE-2025-37933-55f4@gregkh/T


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