5.5

CVE-2025-38114

e1000: Move cancel_work_sync to avoid deadlock

In the Linux kernel, the following vulnerability has been resolved:

e1000: Move cancel_work_sync to avoid deadlock

Previously, e1000_down called cancel_work_sync for the e1000 reset task
(via e1000_down_and_stop), which takes RTNL.

As reported by users and syzbot, a deadlock is possible in the following
scenario:

CPU 0:
  - RTNL is held
  - e1000_close
  - e1000_down
  - cancel_work_sync (cancel / wait for e1000_reset_task())

CPU 1:
  - process_one_work
  - e1000_reset_task
  - take RTNL

To remedy this, avoid calling cancel_work_sync from e1000_down
(e1000_reset_task does nothing if the device is down anyway). Instead,
call cancel_work_sync for e1000_reset_task when the device is being
removed.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.13 < 6.15.3
Linux ≫ Linux Kernel Version6.16 Updaterc1
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.11% 0.013
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-667 Improper Locking

The product does not properly acquire or release a lock on a resource, leading to unexpected resource state changes and behaviors.

https://git.kernel.org/stable/c/1fd4438ddcc4958ed24662d5125114299e19bae4
Patch
https://git.kernel.org/stable/c/b4a8085ceefb7bbb12c2b71c55e71fc946c6929f
Patch