Threats Tagged 'cve-2026-23437'
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Threats Tagged 'cve-2026-23437'
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Linux hwe edge: In the Linux kernel, the following vulnerability has been resolved: net: shaper: protect late read accesses to the hierarchy We look up a netdev… (CVE-2026-23437)CVE-2026-23437 0 In the Linux kernel, the following vulnerability has been resolved: net: shaper: protect late read accesses to the hierarchy We look up a netdev during prep of Netlink ops (pre- callbacks) and take a ref to it. Then later in the body of the callback we take its lock or RCU which are the actual protections. This is not proper, a conversion from a ref to a locked netdev must include a liveness check (a check if the netdev hasn't been unregistered already). Fix the read cases (those under RCU). Writes needs a separate change to protect from creating the hierarchy after flush has already run. Join the discussion | GCVE Database | 04/03/2026, 16:16:00 UTC Added: 07/31/2026, 15:39:00 UTC |
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