CVE-2025-38039: Linux kernel · net/mlx5e: Avoid WARN_ON when configuring MQPRIO with HTB offload enabled
Source GCVE Database
Not known to be exploited · CVSS 5.5 Low · fixed in b82e496531c571caf8a2ef247f51c160bab2162e : update Linux kernel when convenient.
Data as of 13 Nov 2026, 18:52 UTC
Thin evidence
One scorer or none- Patch
- Available – fixed in b82e496531c571caf8a2ef247f51c160bab2162e, 689805dcc474c2accb5cffbbcea1c06ee4a54570, 090c0ba179eaf7b670e720aa054533756a43d565 +1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 18 Jun 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.
What to do
Upgrade Linux kernel to b82e496531c571caf8a2ef247f51c160bab2162e, 689805dcc474c2accb5cffbbcea1c06ee4a54570, 090c0ba179eaf7b670e720aa054533756a43d565 or 9e2bac6835f73895598df5a3a125a19497fad46b.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in– |
AI-suggested
If you cannot patch yet, avoid configuring MQPRIO with HTB offload enabled simultaneously to prevent the kernel warning.
Description
CVE-2025-38039 is a medium severity vulnerability in the Linux kernel's mlx5e network driver. It occurs when configuring MQPRIO while HTB offload is already enabled, causing the driver to return an invalid argument error and trigger a kernel warning (WARN_ON), which leads to an unnecessary call trace. The issue has been addressed by updating the code to return a more appropriate error code (-EOPNOTSUPP) and provide a helpful user message, avoiding the kernel warning.
References
- nvd.nist.gov/vuln/detail/CVE-2025-38039 (opens in a new tab)
- git.kernel.org/stable/c/090c0ba179eaf7b670e720aa054533756a43d565 (opens in a new tab)
- git.kernel.org/stable/c/689805dcc474c2accb5cffbbcea1c06ee4a54570 (opens in a new tab)
- git.kernel.org/stable/c/9e2bac6835f73895598df5a3a125a19497fad46b (opens in a new tab)
- git.kernel.org/stable/c/b82e496531c571caf8a2ef247f51c160bab2162e (opens in a new tab)