Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date: Wed, 30 Sep 2020 10:35:56 +1000
From: Wade Mealing <>
Subject: CVE-2020-25641 kernel: soft lockup when submitting zero length bvecs.


A flaw was found in the Linux kernels implementation of biovec usage.  A
zero-length biovec request issued to the block subsystem could cause the
kernel to enter an infinite loop causing a denial of service. An attacker
with a local account can issue requests to a block device can cause a
denial of service.

This has been assigned CVE-2020-25641,

According to the fix commits "Introduced in":
# git tag --contains 1bdc76aea115 | head -n 1

Fixed by:

Thank you.


Wade Mealing

Product Security - Kernel, RHCE

Red Hat

TRIED. TESTED. TRUSTED. <> for urgent response

Powered by blists - more mailing lists

Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.