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kernel: block: Fix the maximum minor value is blk_alloc_ext_minor()

🗓️ 15 Nov 2022 11:55:31Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 3 Views

Kernel fix prevents overflow when blk_alloc_ext_minor returns NR_EXT_DEVT as first_minor.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.1aarch64bpftool0:5.14.0-162.6.1.el9_1bpftool-0:5.14.0-162.6.1.el9_1.aarch64.rpm
Red Hat Enterprise Linux9.1ppc64lebpftool0:5.14.0-162.6.1.el9_1bpftool-0:5.14.0-162.6.1.el9_1.ppc64le.rpm
Red Hat Enterprise Linux9.1s390xbpftool0:5.14.0-162.6.1.el9_1bpftool-0:5.14.0-162.6.1.el9_1.s390x.rpm
Red Hat Enterprise Linux9.1x86_64bpftool0:5.14.0-162.6.1.el9_1bpftool-0:5.14.0-162.6.1.el9_1.x86_64.rpm
Red Hat Enterprise Linux9.1aarch64bpftool-debuginfo0:5.14.0-162.6.1.el9_1bpftool-debuginfo-0:5.14.0-162.6.1.el9_1.aarch64.rpm
Red Hat Enterprise Linux9.1ppc64lebpftool-debuginfo0:5.14.0-162.6.1.el9_1bpftool-debuginfo-0:5.14.0-162.6.1.el9_1.ppc64le.rpm
Red Hat Enterprise Linux9.1s390xbpftool-debuginfo0:5.14.0-162.6.1.el9_1bpftool-debuginfo-0:5.14.0-162.6.1.el9_1.s390x.rpm
Red Hat Enterprise Linux9.1x86_64bpftool-debuginfo0:5.14.0-162.6.1.el9_1bpftool-debuginfo-0:5.14.0-162.6.1.el9_1.x86_64.rpm
Red Hat Enterprise Linux9.1aarch64kernel0:5.14.0-162.6.1.el9_1kernel-0:5.14.0-162.6.1.el9_1.aarch64.rpm
Red Hat Enterprise Linux9.1ppc64lekernel0:5.14.0-162.6.1.el9_1kernel-0:5.14.0-162.6.1.el9_1.ppc64le.rpm
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03 Jul 2026 02:27Current
6.4Medium risk
Vulners AI Score6.4
CVSS 3.15.5
EPSS0.00245
3