CVE-2026-23446
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.
Does this matter?
Lower severity and a low EPSS score (0.13%). Track it; it rarely justifies an emergency change on its own.
Description
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
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.13% probability · 3th percentile
- CISA KEV
- Not listed
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/069c8f5aebe4d5224cf62acc7d4b3486091c658aPatch
- https://git.kernel.org/stable/c/3267bcb744ee8a2feabaa7ab69473f086f67fd71Patch
- https://git.kernel.org/stable/c/4de6a43e8ecf961feabddf0e9d6911081d2ed218Patch
- https://git.kernel.org/stable/c/621f2f43741b51f62d767eb4752fbcefe2526926Patch
- https://git.kernel.org/stable/c/98e8aed64614b0c199d5f0391fbe1a4331cb5773Patch
- https://git.kernel.org/stable/c/b87f361d41f9a7f1f6c426947ca815651c481376Patch
- https://git.kernel.org/stable/c/cc06ac99fd78839b2d38850785731ef131d9ae26Patch
- https://git.kernel.org/stable/c/d3e32a612c6391ca9b7c183aeec22b4fd24c300cPatch
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.