Answer in brief
CVE-2026-68456 records a Unknown severity vulnerability in usb: atm: ueagle-atm: wait for pre-firmware load in .disconnect(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=b72458a80c75cab832248f536412f386e20a93a0 <d85f19aaef42a03e3e4765d659c761c8750a7f23 || >=b72458a80c75cab832248f536412f386e20a93a0 <76861031b43a18065d13f9ffb8595d25c7576005 || >=b72458a80c75cab832248f536412f386e20a93a0 <bbfedc84714064ea4845e6b76f96316eb5bb65d8 || >=b72458a80c75cab832248f536412f386e20a93a0 <f2a6abc670104fc3e383ee3b1cf35c070485e3df || >=b72458a80c75cab832248f536412f386e20a93a0 <c581e30ae5b332d8acef64475a211b3f82099941 || >=b72458a80c75cab832248f536412f386e20a93a0 <509b51327320bdeaef1969248177a446ded073ab || >=b72458a80c75cab832248f536412f386e20a93a0 <ddcdac47e1f2651c7be60e299f98faf981522797 || >=b72458a80c75cab832248f536412f386e20a93a0 <e2674dfbed8a30d57e2bc872c4bfa6c3eec918bf | d85f19aaef42a03e3e4765d659c761c8750a7f23, 76861031b43a18065d13f9ffb8595d25c7576005, bbfedc84714064ea4845e6b76f96316eb5bb65d8, f2a6abc670104fc3e383ee3b1cf35c070485e3df, c581e30ae5b332d8acef64475a211b3f82099941, 509b51327320bdeaef1969248177a446ded073ab, ddcdac47e1f2651c7be60e299f98faf981522797, e2674dfbed8a30d57e2bc872c4bfa6c3eec918bf |
| Linux/Linuxgeneric | 2.6.16 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: usb: atm: ueagle-atm: wait for pre-firmware load in .disconnect() ueagle-atm uses the asynchronous request_firmware_nowait() in .probe(), but does not wait for its completion, not even in .disconnect(); so, if the device is unplugged meanwhile, its teardown runs concurrently with that. Even though this inconsistency is worth addressing on its own, it has also triggered several bug reports in syzbot over the years (some auto-closed) where the firmware sysfs fallback mechanism (CONFIG_FW_LOADER_USER_HELPER) creates a firmware subdirectory in the device directory during its removal, which might hit unexpected conditions in kernfs, apparently, depending at which point the add and remove operations raced. (See links.) The pattern is: usb ?-?: Direct firmware load for ueagle-atm/eagle?.fw failed with error -2 usb ?-?: Falling back to sysfs fallback for: ueagle-atm/eagle?.fw <ERROR> Call trace: ... kernfs_create_dir_ns sysfs_create_dir_ns create_dir kobject_add_internal kobject_add_varg kobject_add class_dir_create_and_add get_device_parent device_add fw_load_sysfs_fallback fw_load_from_user_helper firmware_fallback_sysfs _request_firmware request_firmware_work_func ... (Some variations are observed, after fw_load_sysfs_fallback(), e.g., [1].) While the kernfs side is being looked at, the ueagle-atm side can be fixed by waiting for the pre-firmware load in the .disconnect() handler. This change has a similar approach to previous work by Andrey Tsygunka [2] (wait_for_completion() in .disconnect()), but it is relatively different in design/implementation; using the Originally-by tag for credit assignment. This has been tested with: - synthetic reproducer to check the error path; - USB gadget (virtual device) to check the firmware upload path; - QEMU device emulator to check the device ID re-enumeration path; (The latter two were written by Claude; no other code/text in this commit.) Links (year first reported): 2025 https://syzbot.org/bug?extid=ce1e5a1b4e086b43e56d 2025 https://syzbot.org/bug?extid=9af8471255ac36e34fd4 2024 https://syzbot.org/bug?extid=306212936b13e520679d 2023 https://syzkaller.appspot.com/bug?extid=457452d30bcdda75ead2 2022 https://syzbot.org/bug?extid=782984d6f1701b526edb 2021 https://syzbot.org/bug?id=f3f221579f4ef7e9691281f3c6f56c05f83e8490 2021 https://syzbot.org/bug?id=84d86f0d71394829df6fc53daf6642c045983881 2021 https://syzbot.org/bug?id=3302dc1c0e2b9c94f2e8edb404eabc9267bc6f90 [1] https://syzkaller.appspot.com/bug?extid=457452d30bcdda75ead2 [2] https://lore.kernel.org/lkml/[email protected]/
Quoted source text, attributed separately from HOL analysis.