{"id":"CVE-2026-23446","title":"net: usb: aqc111: Do not perform PM inside suspend callback","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: aqc111: Do not perform PM inside suspend callback\n\nsyzbot reports \"task hung in rpm_resume\"\n\nThis is caused by aqc111_suspend calling\nthe PM variant of its wr…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc < cc06ac99fd78839b2d38850785731ef131d9ae26","Linux >= e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc < b87f361d41f9a7f1f6c426947ca815651c481376","Linux >= e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc < 621f2f43741b51f62d767eb4752fbcefe2526926","Linux >= e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc < 4de6a43e8ecf961feabddf0e9d6911081d2ed218","Linux >= e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc < 3267bcb744ee8a2feabaa7ab69473f086f67fd71","Linux >= e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc < d3e32a612c6391ca9b7c183aeec22b4fd24c300c","Linux >= e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc < 98e8aed64614b0c199d5f0391fbe1a4331cb5773","Linux >= e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc < 069c8f5aebe4d5224cf62acc7d4b3486091c658a","Linux 5.0"],"published":"2026-04-03","updated":"2026-09-08","sourceUpdated":"2026-09-08T08:46:14.104Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-23446","references":[{"url":"https://git.kernel.org/stable/c/cc06ac99fd78839b2d38850785731ef131d9ae26"},{"url":"https://git.kernel.org/stable/c/b87f361d41f9a7f1f6c426947ca815651c481376"},{"url":"https://git.kernel.org/stable/c/621f2f43741b51f62d767eb4752fbcefe2526926"},{"url":"https://git.kernel.org/stable/c/4de6a43e8ecf961feabddf0e9d6911081d2ed218"},{"url":"https://git.kernel.org/stable/c/3267bcb744ee8a2feabaa7ab69473f086f67fd71"},{"url":"https://git.kernel.org/stable/c/d3e32a612c6391ca9b7c183aeec22b4fd24c300c"},{"url":"https://git.kernel.org/stable/c/98e8aed64614b0c199d5f0391fbe1a4331cb5773"},{"url":"https://git.kernel.org/stable/c/069c8f5aebe4d5224cf62acc7d4b3486091c658a"}],"tags":["cve.org"],"epss":0.00129,"epssPercentile":0.02883,"ingestedAt":"2026-09-08T15:33:26.992Z","slug":"CVE-2026-23446","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nnet: usb: aqc111: Do not perform PM inside suspend callback\n\nsyzbot reports \"task hung in rpm_resume\"\n\nThis is caused by aqc111_suspend calling\nthe PM variant of its write_cmd routine.\n\nThe simplified call trace looks like this:\n\nrpm_suspend()\n  usb_suspend_both() - here udev->dev.power.runtime_status == RPM_SUSPENDING\n    aqc111_suspend() - called for the usb device interface\n      aqc111_write32_cmd()\n        usb_autopm_get_interface()\n          pm_runtime_resume_and_get()\n            rpm_resume() - here we call rpm_resume() on our parent\n              rpm_resume() - Here we wait for a status change that will never happen.\n\nAt this point we block another task which holds\nrtnl_lock and locks up the whole networking stack.\n\nFix this by replacing the write_cmd calls with their _nopm variants\n\n## Affected\n\n- `Linux >= e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc < cc06ac99fd78839b2d38850785731ef131d9ae26`\n- `Linux >= e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc < b87f361d41f9a7f1f6c426947ca815651c481376`\n- `Linux >= e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc < 621f2f43741b51f62d767eb4752fbcefe2526926`\n- `Linux >= e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc < 4de6a43e8ecf961feabddf0e9d6911081d2ed218`\n- `Linux >= e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc < 3267bcb744ee8a2feabaa7ab69473f086f67fd71`\n- `Linux >= e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc < d3e32a612c6391ca9b7c183aeec22b4fd24c300c`\n- `Linux >= e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc < 98e8aed64614b0c199d5f0391fbe1a4331cb5773`\n- `Linux >= e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc < 069c8f5aebe4d5224cf62acc7d4b3486091c658a`\n- `Linux 5.0`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}