CVE-2026-63997
Not scored
ethtool: module: avoid leaking a netdev ref on module flash errors
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.
Exploit probability
0.2%
Published
July 19, 2026
Required by
Not available
Last source change
August 12, 2026
02 / AFFECTED SOFTWARE
Affected packages
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2026-63997
View original source
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/61848c83b9132ab839809fe415ba7802a0aca4f6
- https://git.kernel.org/stable/c/956b134d917fd7e014dc7e39a9b7610c04fcc9ba
- https://git.kernel.org/stable/c/f7b4513e77f9571dc1041a798b93b5c4a4bfc191
- https://git.kernel.org/stable/c/fb7f511d62692661846c47f199e0afe25c2982db
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/63xxx/CVE-2026-63997.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-63997