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kernel: RDMA/mlx4: Fix mis-use of RCU in mlx4_srq_event()

🗓️ 06 Jul 2026 14:31:32Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 4 Views

Fix mis-use of read copy update in mlx4_srq_event to prevent DoS from an uninitialized srq object.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux8.4x86_64bpftool0:4.18.0-305.197.1.el8_4bpftool-0:4.18.0-305.197.1.el8_4.x86_64.rpm
Red Hat Enterprise Linux8.4x86_64bpftool-debuginfo0:4.18.0-305.197.1.el8_4bpftool-debuginfo-0:4.18.0-305.197.1.el8_4.x86_64.rpm
Red Hat Enterprise Linux8.4x86_64kernel0:4.18.0-305.197.1.el8_4kernel-0:4.18.0-305.197.1.el8_4.x86_64.rpm
Red Hat Enterprise Linux8.4noarchkernel-abi-stablelists0:4.18.0-305.197.1.el8_4kernel-abi-stablelists-0:4.18.0-305.197.1.el8_4.noarch.rpm
Red Hat Enterprise Linux8.4x86_64kernel-core0:4.18.0-305.197.1.el8_4kernel-core-0:4.18.0-305.197.1.el8_4.x86_64.rpm
Red Hat Enterprise Linux8.4x86_64kernel-debug0:4.18.0-305.197.1.el8_4kernel-debug-0:4.18.0-305.197.1.el8_4.x86_64.rpm
Red Hat Enterprise Linux8.4x86_64kernel-debug-core0:4.18.0-305.197.1.el8_4kernel-debug-core-0:4.18.0-305.197.1.el8_4.x86_64.rpm
Red Hat Enterprise Linux8.4x86_64kernel-debug-debuginfo0:4.18.0-305.197.1.el8_4kernel-debug-debuginfo-0:4.18.0-305.197.1.el8_4.x86_64.rpm
Red Hat Enterprise Linux8.4x86_64kernel-debug-devel0:4.18.0-305.197.1.el8_4kernel-debug-devel-0:4.18.0-305.197.1.el8_4.x86_64.rpm
Red Hat Enterprise Linux8.4x86_64kernel-debug-modules0:4.18.0-305.197.1.el8_4kernel-debug-modules-0:4.18.0-305.197.1.el8_4.x86_64.rpm
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13 Jul 2026 17:32Current
6.5Medium risk
Vulners AI Score6.5
CVSS 3.17.8
EPSS0.00114
4