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kernel: use-after-free in block/bfq-iosched.c related to bfq_idle_slice_timer_body

🗓️ 23 Jun 2020 13:08:48Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 10 Views

Kernel flaw in bfq io scheduler lets local user trigger corruption and privilege escalation via race.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.1aarch64bpftool0:4.18.0-147.20.1.el8_1bpftool-0:4.18.0-147.20.1.el8_1.aarch64.rpm
Red Hat Enterprise Linux8.1ppc64lebpftool0:4.18.0-147.20.1.el8_1bpftool-0:4.18.0-147.20.1.el8_1.ppc64le.rpm
Red Hat Enterprise Linux8.1s390xbpftool0:4.18.0-147.20.1.el8_1bpftool-0:4.18.0-147.20.1.el8_1.s390x.rpm
Red Hat Enterprise Linux8.1x86_64bpftool0:4.18.0-147.20.1.el8_1bpftool-0:4.18.0-147.20.1.el8_1.x86_64.rpm
Red Hat Enterprise Linux8.1aarch64bpftool-debuginfo0:4.18.0-147.20.1.el8_1bpftool-debuginfo-0:4.18.0-147.20.1.el8_1.aarch64.rpm
Red Hat Enterprise Linux8.1ppc64lebpftool-debuginfo0:4.18.0-147.20.1.el8_1bpftool-debuginfo-0:4.18.0-147.20.1.el8_1.ppc64le.rpm
Red Hat Enterprise Linux8.1s390xbpftool-debuginfo0:4.18.0-147.20.1.el8_1bpftool-debuginfo-0:4.18.0-147.20.1.el8_1.s390x.rpm
Red Hat Enterprise Linux8.1x86_64bpftool-debuginfo0:4.18.0-147.20.1.el8_1bpftool-debuginfo-0:4.18.0-147.20.1.el8_1.x86_64.rpm
Red Hat Enterprise Linux8.1aarch64kernel0:4.18.0-147.20.1.el8_1kernel-0:4.18.0-147.20.1.el8_1.aarch64.rpm
Red Hat Enterprise Linux8.1ppc64lekernel0:4.18.0-147.20.1.el8_1kernel-0:4.18.0-147.20.1.el8_1.ppc64le.rpm
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28 Jun 2026 12:16Current
7.1High risk
Vulners AI Score7.1
CVSS 24.6
CVSS 3.17.8
EPSS0.00711
10