CVE-2021-38203
5.5 MEDIUMbtrfs in the Linux kernel before 5.13.4 allows attackers to cause a denial of service (deadlock) via processes that trigger allocation of...
Published: 2021-08-08 · Last updated: 2026-06-17
Severity and scoring
- CVSS
- 5.5 MEDIUM
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- CWE
- CWE-667
Affected products
| Vendor | Product |
|---|---|
| linux | element_software, hci_bootstrap_os, hci_management_node |
| netapp | element_software, hci_bootstrap_os, hci_management_node |
Description
btrfs in the Linux kernel before 5.13.4 allows attackers to cause a denial of service (deadlock) via processes that trigger allocation of new system chunks during times when there is a shortage of free space in the system space_info.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-38203
- [Patch]https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4
- [Patch]https://github.com/torvalds/linux/commit/1cb3db1cf383a3c7dbda1aa0ce748b0958759947
- [Other]https://security.netapp.com/advisory/ntap-20210902-0010/
- [Patch]https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4
- [Patch]https://github.com/torvalds/linux/commit/1cb3db1cf383a3c7dbda1aa0ce748b0958759947
- [Other]https://security.netapp.com/advisory/ntap-20210902-0010/
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