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CVE-2020-25641 A flaw was found in the Linux kernel's implementation of biovecs in versions before 5.9-rc7
Description
A flaw was found in the Linux kernel's implementation of biovecs in versions before 5.9-rc7. A zero-length biovec request issued by the block subsystem could cause the kernel to enter an infinite loop, causing a denial of service. This flaw allows a local attacker with basic privileges to issue requests to a block device, resulting in a denial of service. The highest threat from this vulnerability is to system availability.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| kernel | Versions not published |
References
- bugzilla.redhat.com bugzilla.redhat.com
- git.kernel.org git.kernel.org
- www.kernel.org www.kernel.org
- [oss-security] 20201006 Re: CVE-2020-25641 kernel: soft lockup when submitting zero length bvecs. www.openwall.com
- openSUSE-SU-2020:1655 lists.opensuse.org
- USN-4576-1 usn.ubuntu.com
- openSUSE-SU-2020:1698 lists.opensuse.org
- [debian-lts-announce] 20201030 [SECURITY] [DLA 2420-1] linux security update lists.debian.org
- [debian-lts-announce] 20201031 [SECURITY] [DLA 2420-2] linux regression update lists.debian.org
Timeline
- Published
- Last modified
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