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Medium 5.5Published Jul 19, 2026

CVE-2026-63997ethtool: module: avoid leaking a netdev ref on module flash errors

Updated under an hour ago ()

Does this affect you?

It affects Linux and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE)
Not given
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
Linux
NVD analysis
Analyzed
Record last updated
Jul 19, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Linux Linux
linux:linux (from the name)
from 32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e before f7b4513e77f9571dc1041a798b93b5c4a4bfc191; from 32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e before 61848c83b9132ab839809fe415ba7802a0aca4f6; from 32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e before 956b134d917fd7e014dc7e39a9b7610c04fcc9ba; from 32b4c8b53ee7799e34a2b1634d32d3ce1e36c44e before fb7f511d62692661846c47f199e0afe25c2982db
CNA record
linux linux_kernel
linux:linux_kernel
from 6.11 before 6.12.93; from 6.13 before 6.18.35; from 6.19 before 7.0.12; 7.1; 7.1; 7.1; 7.1; 7.1
NVD

References

  • patch
  • patch
  • patch
  • patch

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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