Threats Tagged 'ghsa-qvxh-98q9-x4j8'
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Threats Tagged 'ghsa-qvxh-98q9-x4j8'
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A null pointer dereference vulnerability was resolved in the Linux kernel's device mapper cache (dm-cache) when operating in passthrough mode. The flaw occurs during concurrent writes to the same cached block, where an error path attempts to unlock and free a null cache cell, causing a kernel crash. This issue can lead to denial of service due to kernel panic. The vulnerability has a medium severity score of 5.5 CVSS 3.1 and affects Linux kernel versions prior to the fix. The fix involves validating the cache cell pointer before unlocking it. Join the discussion | GCVE Database | 06/24/2026, 18:32:45 UTC Added: 07/21/2026, 19:58:00 UTC |
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