PT-2021-7231
CVE-2021-4149
·
Published
2021-10-18
·
Updated
2026-10-21
Description by
CVSS 4.0
5.7
MediumMetricsAV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A flaw in the btrfs alloc tree b function in the Linux kernel's btrfs file system, specifically in fs/btrfs/extent-tree.c, is due to an improper lock operation. This issue can cause a denial of service (DOS) due to a deadlock problem, potentially allowing a user with local privileges to exploit it.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploitability
Exploit
Impacts
Researchers
Vendors
Affected products
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