CVE-2026-63997CWE-401

CVE-2026-63997

Medium · published July 19, 2026

CVSS v3.1
5.5
EPSS
0%
Percentile
1.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00122 · 1.8th percentile
Weakness
CWE-401 · Missing Release of Memory after Effective Lifetime
Published
2026-07-19T20:17Z
Affected products (8)
ProductVersionsFixed in
linux/linux_kernel≥ 6.11, < 6.12.936.12.93
linux/linux_kernel≥ 6.13, < 6.18.356.18.35
linux/linux_kernel≥ 6.19, < 7.0.127.0.12
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
linux/linux_kernelall versions—
References (4)
https://git.kernel.org/stable/c/61848c83b9132ab839809fe415ba7802a0aca4f6 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/956b134d917fd7e014dc7e39a9b7610c04fcc9ba · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f7b4513e77f9571dc1041a798b93b5c4a4bfc191 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/fb7f511d62692661846c47f199e0afe25c2982db · 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS history
Timeline
  • 19 JUL 14:56Z
    ethtool: module: avoid leaking a netdev ref on module flash errors
    cvelistv5