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kernel: soft-lockups in iov_iter_copy_from_user_atomic() could result in DoS

🗓️ 10 Nov 2020 18:10:34Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 5 Views

Zero-length biovec requests can cause infinite loops in kernel block IO, leading to DoS.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7ppc64lekernel0:4.14.0-115.33.1.el7akernel-0:4.14.0-115.33.1.el7a.ppc64le.rpm
Red Hat Enterprise Linux7anykernel-abi-whitelists0:4.14.0-115.33.1.el7a.noarchkernel-abi-whitelists-0:4.14.0-115.33.1.el7a.noarch.noarch.rpm
Red Hat Enterprise Linux7ppc64lekernel-bootwrapper0:4.14.0-115.33.1.el7akernel-bootwrapper-0:4.14.0-115.33.1.el7a.ppc64le.rpm
Red Hat Enterprise Linux7ppc64lekernel-debug0:4.14.0-115.33.1.el7akernel-debug-0:4.14.0-115.33.1.el7a.ppc64le.rpm
Red Hat Enterprise Linux7ppc64lekernel-debug-debuginfo0:4.14.0-115.33.1.el7akernel-debug-debuginfo-0:4.14.0-115.33.1.el7a.ppc64le.rpm
Red Hat Enterprise Linux7ppc64lekernel-debug-devel0:4.14.0-115.33.1.el7akernel-debug-devel-0:4.14.0-115.33.1.el7a.ppc64le.rpm
Red Hat Enterprise Linux7ppc64lekernel-debuginfo0:4.14.0-115.33.1.el7akernel-debuginfo-0:4.14.0-115.33.1.el7a.ppc64le.rpm
Red Hat Enterprise Linux7ppc64lekernel-debuginfo-common-ppc64le0:4.14.0-115.33.1.el7akernel-debuginfo-common-ppc64le-0:4.14.0-115.33.1.el7a.ppc64le.rpm
Red Hat Enterprise Linux7ppc64lekernel-devel0:4.14.0-115.33.1.el7akernel-devel-0:4.14.0-115.33.1.el7a.ppc64le.rpm
Red Hat Enterprise Linux7anykernel-doc0:4.14.0-115.33.1.el7a.noarchkernel-doc-0:4.14.0-115.33.1.el7a.noarch.noarch.rpm
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28 Jun 2026 12:33Current
6.8Medium risk
Vulners AI Score6.8
CVSS 24.9
CVSS 3.15.5
EPSS0.00385
5