Bugzilla – Bug 1226532
VUL-0: CVE-2021-47573: kernel: xen/blkfront: harden blkfront against event channel storms
Last modified: 2024-06-20 10:06:42 UTC
In the Linux kernel, the following vulnerability has been resolved: xen/blkfront: harden blkfront against event channel storms The Xen blkfront driver is still vulnerable for an attack via excessive number of events sent by the backend. Fix that by using lateeoi event channels. This is part of XSA-391 References: http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-47573 https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2021/CVE-2021-47573.mbox https://git.kernel.org/stable/c/3e04b9e6aa7d77287e70a400be83060d2b7b2cfe https://git.kernel.org/stable/c/25898389795bd85d8e1520c0c75c3ad906c17da7 https://git.kernel.org/stable/c/5ac3b68b79c9e964dd6f3cf80ff825518e502b79 https://git.kernel.org/stable/c/269d7124bcfad2558d2329d0fe603ca20b20d3f4 https://git.kernel.org/stable/c/4ed9f5c511ce95cb8db05ff82026ea901f45fd76 https://git.kernel.org/stable/c/8ac3b6ee7c9ff2df7c99624bb1235e2e55623825 https://git.kernel.org/stable/c/caf9b51829a50590b84daea924a0fd62d32bc952 https://git.kernel.org/stable/c/0fd08a34e8e3b67ec9bd8287ac0facf8374b844a https://www.cve.org/CVERecord?id=CVE-2021-47573