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Related Vulnerabilities: CVE-2021-28964

A race condition was discovered in get_old_root in fs/btrfs/ctree.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (BUG) because of a lack of locking on an extent buffer before a cloning operation, aka CID-dbcc7d57bffc.

Source

Severity Low

Remote No

Type Denial of service

Description

A race condition was discovered in get_old_root in fs/btrfs/ctree.c in the Linux kernel through 5.11.8. It allows attackers to cause a denial of service (BUG) because of a lack of locking on an extent buffer before a cloning operation, aka CID-dbcc7d57bffc.

AVG-1719 linux-lts 5.10.25-1 Medium Vulnerable

AVG-1718 linux-zen 5.11.8.zen1-1 Medium Vulnerable

AVG-1717 linux-hardened 5.11.8.hardened1-1 Medium Vulnerable

AVG-1716 linux 5.11.8.arch4-1 Medium Vulnerable

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=dbcc7d57bffc0c8cac9dac11bec548597d59a6a5

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