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.
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-25641.json"
[
{
"signature_type": "Line",
"signature_version": "v1",
"source": "https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git@7e24969022cbd61ddc586f14824fc205661bb124",
"digest": {
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"threshold": 0.9
},
"id": "CVE-2020-25641-65db224c",
"deprecated": false,
"target": {
"file": "include/linux/bvec.h"
}
}
]