CVE-2026-23446: Linux kernel · net: usb: aqc111: Do not perform PM inside suspend callback
Affects Linux kernelSource CVE Database V5
Not known to be exploited · fixed in d3e32a612c6391ca9b7c183aeec22b4fd24c300c : patch Linux kernel soon.
Data as of 10 Nov 2026, 13:06 UTC
Rated High by Threat Radar's AI analysis · No CVSS score from NVD or the CNA
Thin evidence
One scorer or none- Patch
- Available – fixed in d3e32a612c6391ca9b7c183aeec22b4fd24c300c, cc06ac99fd78839b2d38850785731ef131d9ae26, b87f361d41f9a7f1f6c426947ca815651c481376 +5
Exploitation evidence
Disclosed: evidence found.
CVE published 3 Apr 2026
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 10 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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| LinuxLinux | Affected
| Fixed in
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AI-suggested
A fix is available and has been applied in the Linux kernel. The remediation replaces the PM variant of write_cmd calls with their _nopm variants inside the suspend callback to avoid performing power management operations during suspend. Users should update to a Linux kernel version that includes the fix identified by the provided commit hashes.
Description
CVE-2026-23446 is a Linux kernel vulnerability in the net: usb: aqc111 driver where power management (PM) operations are improperly performed inside a suspend callback. This causes a deadlock by blocking a task holding the rtnl_lock, effectively locking up the networking stack. The issue arises because the suspend callback calls the PM variant of a write command, triggering a runtime resume that waits indefinitely. The fix replaces these calls with non-PM variants to prevent the deadlock.
References
- git.kernel.org/stable/c/cc06ac99fd78839b2d38850785731ef131d9ae26 (opens in a new tab)
- git.kernel.org/stable/c/b87f361d41f9a7f1f6c426947ca815651c481376 (opens in a new tab)
- git.kernel.org/stable/c/621f2f43741b51f62d767eb4752fbcefe2526926 (opens in a new tab)
- git.kernel.org/stable/c/4de6a43e8ecf961feabddf0e9d6911081d2ed218 (opens in a new tab)
- git.kernel.org/stable/c/3267bcb744ee8a2feabaa7ab69473f086f67fd71 (opens in a new tab)
- git.kernel.org/stable/c/d3e32a612c6391ca9b7c183aeec22b4fd24c300c (opens in a new tab)
- git.kernel.org/stable/c/98e8aed64614b0c199d5f0391fbe1a4331cb5773 (opens in a new tab)
- git.kernel.org/stable/c/069c8f5aebe4d5224cf62acc7d4b3486091c658a (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-082556.html (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-019113.html (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-457936.html (opens in a new tab)