Threats Tagged 'ubuntu-cve-2026-46154'
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Threats Tagged 'ubuntu-cve-2026-46154'
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A use-after-free vulnerability in the Linux kernel's scheduler extension (sched_ext) was resolved. The flaw involves reading a stale pointer (scx_root) under the scx_cgroup_ops_rwsem lock in cgroup setter functions, potentially leading to dereferencing freed memory. This can occur if the scheduler is disabled and freed while another is enabled concurrently. The vulnerability affects multiple Linux kernel versions prior to 7.0.0-28.28 and related builds. The issue has been assigned CVE-2026-46154 and carries a CVSS 3.1 score of 7.0, indicating a medium severity. A patch is available and included in updated Linux kernel packages for Ubuntu 26.04 LTS and related variants. Users should apply the updates and reboot to mitigate the risk. Join the discussion | GCVE Database | 05/28/2026, 10:16:00 UTC Added: 07/17/2026, 10:20:27 UTC |
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