{"id":"CVE-2026-23446","state":"PUBLISHED","title":"net: usb: aqc111: Do not perform PM inside suspend callback","description":"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 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","publishedAt":"2026-04-03T15:15:29.863Z","updatedAt":"2026-10-15T01:15:07.658Z","severity":null,"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc","status":"affected","lessThan":"cc06ac99fd78839b2d38850785731ef131d9ae26","versionType":"git"},{"version":"e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc","status":"affected","lessThan":"b87f361d41f9a7f1f6c426947ca815651c481376","versionType":"git"},{"version":"e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc","status":"affected","lessThan":"621f2f43741b51f62d767eb4752fbcefe2526926","versionType":"git"},{"version":"e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc","status":"affected","lessThan":"4de6a43e8ecf961feabddf0e9d6911081d2ed218","versionType":"git"},{"version":"e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc","status":"affected","lessThan":"3267bcb744ee8a2feabaa7ab69473f086f67fd71","versionType":"git"},{"version":"e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc","status":"affected","lessThan":"d3e32a612c6391ca9b7c183aeec22b4fd24c300c","versionType":"git"},{"version":"e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc","status":"affected","lessThan":"98e8aed64614b0c199d5f0391fbe1a4331cb5773","versionType":"git"},{"version":"e58ba4544c7771591d1e3157bc01b4a8e4d1c3fc","status":"affected","lessThan":"069c8f5aebe4d5224cf62acc7d4b3486091c658a","versionType":"git"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/usb/aqc111.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"5.0","status":"affected"},{"version":"0","status":"unaffected","lessThan":"5.0","versionType":"semver"},{"version":"5.10.253","status":"unaffected","lessThanOrEqual":"5.10.*","versionType":"semver"},{"version":"5.15.203","status":"unaffected","lessThanOrEqual":"5.15.*","versionType":"semver"},{"version":"6.1.167","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.130","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.78","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.20","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.10","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/net/usb/aqc111.c"]}],"references":["https://git.kernel.org/stable/c/cc06ac99fd78839b2d38850785731ef131d9ae26","https://git.kernel.org/stable/c/b87f361d41f9a7f1f6c426947ca815651c481376","https://git.kernel.org/stable/c/621f2f43741b51f62d767eb4752fbcefe2526926","https://git.kernel.org/stable/c/4de6a43e8ecf961feabddf0e9d6911081d2ed218","https://git.kernel.org/stable/c/3267bcb744ee8a2feabaa7ab69473f086f67fd71","https://git.kernel.org/stable/c/d3e32a612c6391ca9b7c183aeec22b4fd24c300c","https://git.kernel.org/stable/c/98e8aed64614b0c199d5f0391fbe1a4331cb5773","https://git.kernel.org/stable/c/069c8f5aebe4d5224cf62acc7d4b3486091c658a","https://cert-portal.siemens.com/productcert/html/ssa-082556.html","https://cert-portal.siemens.com/productcert/html/ssa-019113.html","https://cert-portal.siemens.com/productcert/html/ssa-457936.html"],"weaknesses":[],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/23xxx/CVE-2026-23446.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-23446","state":"PUBLISHED","datePublished":"2026-04-03T15:15:29.863Z","dateUpdated":"2026-10-15T01:15:07.658Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-01-13T15:37:46.019Z"},"containers":{"cna":{"title":"net: usb: aqc111: Do not perform PM inside suspend callback","descriptions":[{"lang":"en","value":"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 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 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