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kernel: nbd: fix incomplete validation of ioctl arg

🗓️ 25 Nov 2025 18:17:51Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 19 Views

Kernel NBD driver IOCTL validation fix prevents signed overflow in writes and bad int casts.

Related
Packages
Refs
ReporterTitlePublishedViews
Family
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Tenable Nessus		Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2023-228)
28 Jun 202300:00
–nessus
nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2023-021 (ALASKERNEL-5.15-2023-021)
29 Jun 202300:00
–nessus
nessus
Tenable Nessus		AlmaLinux 8 : kernel-rt (ALSA-2025:22387)
5 Dec 202500:00
–nessus
nessus
Tenable Nessus		AlmaLinux 8 : kernel (ALSA-2025:22388)
5 Dec 202500:00
–nessus
nessus
Tenable Nessus		Rocky Linux 8.6 [CIQ] Security Update: bpftool / bpftool-debuginfo / kernel / kernel-abi-stablelists / etc Multiple Vulnerabilities (ciqsa-2026_1190)
1 Oct 202600:00
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nessus
Tenable Nessus		Rocky Linux 8 [CIQ] Security Update: bpftool / bpftool-debuginfo / kernel / kernel-abi-stablelists / etc Multiple Vulnerabilities (ciqsa-2026_0637)
1 Oct 202600:00
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nessus
Tenable Nessus		Rocky Linux 8 [CIQ] Security Update: kernel-rt / kernel-rt-core / kernel-rt-debug / kernel-rt-debug-core / etc Multiple Vulnerabilities (crlsa-2025_22387)
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nessus
Tenable Nessus		Rocky Linux 8 [CIQ] Security Update: bpftool / bpftool-debuginfo / kernel / kernel-abi-stablelists / etc Multiple Vulnerabilities (crlsa-2025_22388)
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nessus
Tenable Nessus		Rocky Linux 9.2 [CIQ] Security Update: bpftool / kernel / kernel-64k / kernel-64k-core / kernel-64k-debug / etc Multiple Vulnerabilities (ciqsa-2026_0393)
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nessus
Tenable Nessus		Rocky Linux 9.2 [CIQ] Security Update: bpftool / kernel / kernel-abi-stablelists / kernel-core / etc Multiple Vulnerabilities (ciqsa-2026_0619)
1 Oct 202600:00
–nessus
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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.2x86_64kernel-rt5.14.0-284.148.1.rt14.433.el9_2kernel-rt-5.14.0-284.148.1.rt14.433.el9_2.x86_64.rpm
Red Hat Enterprise Linux9.2x86_64kernel-rt-core5.14.0-284.148.1.rt14.433.el9_2kernel-rt-core-5.14.0-284.148.1.rt14.433.el9_2.x86_64.rpm
Red Hat Enterprise Linux9.2x86_64kernel-rt-debug5.14.0-284.148.1.rt14.433.el9_2kernel-rt-debug-5.14.0-284.148.1.rt14.433.el9_2.x86_64.rpm
Red Hat Enterprise Linux9.2x86_64kernel-rt-debug-core5.14.0-284.148.1.rt14.433.el9_2kernel-rt-debug-core-5.14.0-284.148.1.rt14.433.el9_2.x86_64.rpm
Red Hat Enterprise Linux9.2x86_64kernel-rt-debug-debuginfo5.14.0-284.148.1.rt14.433.el9_2kernel-rt-debug-debuginfo-5.14.0-284.148.1.rt14.433.el9_2.x86_64.rpm
Red Hat Enterprise Linux9.2x86_64kernel-rt-debug-devel5.14.0-284.148.1.rt14.433.el9_2kernel-rt-debug-devel-5.14.0-284.148.1.rt14.433.el9_2.x86_64.rpm
Red Hat Enterprise Linux9.2x86_64kernel-rt-debug-kvm5.14.0-284.148.1.rt14.433.el9_2kernel-rt-debug-kvm-5.14.0-284.148.1.rt14.433.el9_2.x86_64.rpm
Red Hat Enterprise Linux9.2x86_64kernel-rt-debug-modules5.14.0-284.148.1.rt14.433.el9_2kernel-rt-debug-modules-5.14.0-284.148.1.rt14.433.el9_2.x86_64.rpm
Red Hat Enterprise Linux9.2x86_64kernel-rt-debug-modules-core5.14.0-284.148.1.rt14.433.el9_2kernel-rt-debug-modules-core-5.14.0-284.148.1.rt14.433.el9_2.x86_64.rpm
Red Hat Enterprise Linux9.2x86_64kernel-rt-debug-modules-extra5.14.0-284.148.1.rt14.433.el9_2kernel-rt-debug-modules-extra-5.14.0-284.148.1.rt14.433.el9_2.x86_64.rpm
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05 Aug 2026 11:47Current
6.3Medium risk
Vulners AI Score6.3
CVSS 3.15.5
EPSS0.00145
SSVC
CWE-190
kernelnetwork block deviceio control argumentssigned overflowblock write validation
19