CVE-2026-23446 (GCVE-0-2026-23446)

Vulnerability from cvelistv5 – Published: 2026-04-03 15:15 – Updated: 2026-07-14 12:47
VLAI
Title
net: usb: aqc111: Do not perform PM inside suspend callback
Summary
In the Linux kernel, the following vulnerability has been resolved: net: usb: aqc111: Do not perform PM inside suspend callback syzbot reports "task hung in rpm_resume" This is caused by aqc111_suspend calling the PM variant of its write_cmd routine. The simplified call trace looks like this: rpm_suspend() usb_suspend_both() - here udev->dev.power.runtime_status == RPM_SUSPENDING aqc111_suspend() - called for the usb device interface aqc111_write32_cmd() usb_autopm_get_interface() pm_runtime_resume_and_get() rpm_resume() - here we call rpm_resume() on our parent rpm_resume() - Here we wait for a status change that will never happen. At this point we block another task which holds rtnl_lock and locks up the whole networking stack. Fix this by replacing the write_cmd calls with their _nopm variants
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc , < cc06ac99fd78839b2d38850785731ef131d9ae26 (git)
Affected: e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc , < b87f361d41f9a7f1f6c426947ca815651c481376 (git)
Affected: e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc , < 621f2f43741b51f62d767eb4752fbcefe2526926 (git)
Affected: e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc , < 4de6a43e8ecf961feabddf0e9d6911081d2ed218 (git)
Affected: e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc , < 3267bcb744ee8a2feabaa7ab69473f086f67fd71 (git)
Affected: e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc , < d3e32a612c6391ca9b7c183aeec22b4fd24c300c (git)
Affected: e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc , < 98e8aed64614b0c199d5f0391fbe1a4331cb5773 (git)
Affected: e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc , < 069c8f5aebe4d5224cf62acc7d4b3486091c658a (git)
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Linux Linux Affected: 5.0
Unaffected: 0 , < 5.0 (semver)
Unaffected: 5.10.253 , ≤ 5.10.* (semver)
Unaffected: 5.15.203 , ≤ 5.15.* (semver)
Unaffected: 6.1.167 , ≤ 6.1.* (semver)
Unaffected: 6.6.130 , ≤ 6.6.* (semver)
Unaffected: 6.12.78 , ≤ 6.12.* (semver)
Unaffected: 6.18.20 , ≤ 6.18.* (semver)
Unaffected: 6.19.10 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)
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Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
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Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.5 , < * (custom)
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Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
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Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP Affected: V3.1.5 , < * (custom)
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Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.6 , < * (custom)
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Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Affected: V3.1.5 , < * (custom)
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    "datePublished": "2026-04-03T15:15:29.863Z",
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      "date": "2026-07-23",
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    "redhat_vex": {
      "aggregate_severity": "None",
      "current_release_date": "2026-06-28T07:21:02+00:00",
      "cve": "CVE-2026-23446",
      "id": "CVE-2026-23446",
      "initial_release_date": "2026-04-03T00:00:00+00:00",
      "product_status:known_not_affected": "274",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: net: usb: aqc111: Do not perform PM inside suspend callback",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23446.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-15T05:28:19Z",
      "cve": "CVE-2026-23446",
      "id": "CVE-2026-23446",
      "initial_release_date": "2026-04-03T23:27:38Z",
      "product_status:first_fixed": "2",
      "product_status:known_affected": "194",
      "product_status:known_not_affected": "48",
      "product_status:recommended": "268",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-23446",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-23446.json",
      "version": "10"
    }
  }
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.