Bug 2502469 (CVE-2026-63997) - CVE-2026-63997 kernel: ethtool: module: avoid leaking a netdev ref on module flash errors
Summary: CVE-2026-63997 kernel: ethtool: module: avoid leaking a netdev ref on module ...
Keywords:
Status: NEW
Alias: CVE-2026-63997
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-19 16:09 UTC by OSIDB Bzimport
Modified: 2026-07-21 10:56 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-07-19 16:09:48 UTC 
In the Linux kernel, the following vulnerability has been resolved:

ethtool: module: avoid leaking a netdev ref on module flash errors

module_flash_fw_schedule() is missing undo for setting
the "in_progress" flag and taking the netdev reference.
Delay taking these, the device can't disappear while
we are holding rtnl_lock.
Comment 1 Mauro Matteo Cascella 2026-07-21 10:53:39 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026071905-CVE-2026-63997-c99c@gregkh/T
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