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In the Linux kernel, the following vulnerability has been resolved:
nvme: add missing SRCU grace period in error path
nvme_alloc_ns() error path at out_unlink_ns removes ns from the namespace head siblings list with list_del_rcu(&ns->siblings) but does not wait for SRCU readers before freeing the namespace struct. Multipath code iterates the head->list under srcu_read_lock() in nvme_find_path() and nvme_mpath_revalidate_paths(), so a concurrent reader can still hold a reference to ns when kfree(ns) runs.
The normal removal path in nvme_ns_remove() correctly calls synchronize_srcu(&ns->head->srcu) after list_del_rcu() to wait for in-progress readers. Add the same grace period in the error path.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade kernel-rt-develUpgrade kernel-rt-debugUpgrade kernel-rt-modules-extraUpgrade kernel-zfcpdump-coreUpgrade bpftoolUpgrade kernel-cross-headersUpgrade kernel-rt-debug-coreUpgrade kernel-debug-modulesUpgrade kernel-headersUpgrade kernel-debug-modules-extraUpgrade kernelUpgrade kernel-debug-coreUpgrade kernel-abi-stablelistsUpgrade kernel-zfcpdump-modulesUpgrade kernel-rt-debug-modulesUpgrade kernel-debug-develUpgrade kernel-tools-libsUpgrade kernel-modules-extraUpgrade kernel-modulesUpgrade kernel-zfcpdump-modules-extraUpgrade kernel-debugUpgrade kernel-tools-libs-develUpgrade kernel-rt-modulesUpgrade kernel-docUpgrade kernel-rt-debug-develUpgrade kernel-toolsUpgrade kernel-zfcpdump-develUpgrade kernel-coreUpgrade kernel-rt-debug-modules-extraUpgrade kernel-rtUpgrade kernel-develUpgrade kernel-rt-coreUpgrade kernel-zfcpdumpUpgrade python3-perfUpgrade perf | Oct 11, 2026 | Oct 5, 2026 |
| Debian | — | Upgrade linux | Oct 20, 2026 | Sep 16, 2026 |
| Redhat_linux | — | No solution existsUpgrade kernel-rtUpgrade kernel | Oct 6, 2026 | Sep 16, 2026 |
| Rocky_linux | — | Upgrade kernel-debugUpgrade kernel-tools-libs-develUpgrade kernel-debug-develUpgrade kernel-coreUpgrade kernel-debuginfoUpgrade kernel-rt-debug-kvmUpgrade bpftool-debuginfoUpgrade kernel-rt-debug-modules-extraUpgrade perf-debuginfoUpgrade kernel-debuginfo-common-x86_64Upgrade kernel-debug-modules-extraUpgrade kernel-modulesUpgrade kernelUpgrade kernel-rt-debug-develUpgrade bpftoolUpgrade perfUpgrade kernel-debug-modulesUpgrade kernel-debug-debuginfoUpgrade python3-perf-debuginfoUpgrade kernel-tools-libsUpgrade kernel-rt-debuginfoUpgrade kernel-rt-debug-debuginfoUpgrade kernel-tools-debuginfoUpgrade kernel-rt-debug-coreUpgrade kernel-rt-debugUpgrade kernel-rt-debuginfo-common-x86_64Upgrade kernel-rt-modules-extraUpgrade kernel-rt-debug-modulesUpgrade kernel-toolsUpgrade kernel-develUpgrade kernel-rt-kvmUpgrade kernel-rt-coreUpgrade kernel-modules-extraUpgrade kernel-debug-coreUpgrade kernel-rtUpgrade python3-perfUpgrade kernel-rt-develUpgrade kernel-rt-modules | Oct 7, 2026 | Oct 6, 2026 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Oct 13, 2026 | Sep 16, 2026 |
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