CVE-2021-38203

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{"bugzilla": {"description": "kernel: btrfs: 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", "id": "1992745", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1992745"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "cwe": "CWE-667", "details": ["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.", "A flaw was found in the btrfs filesystem in the Linux kernel that allows attackers to cause a denial of service via processes that trigger allocation of new system chunks when there is a shortage of free space in the system space_info. The highest threat from this vulnerability is to system availability."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability."}, "name": "CVE-2021-38203", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-alt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2021-07-07T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2021-38203\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-38203\nhttps://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1cb3db1cf383a3c7dbda1aa0ce748b0958759947"], "statement": "There was no shipped kernel version that was seen affected by this problem. These files are not built in our source code.", "threat_severity": "Moderate"}

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