Threats Tagged 'cve-2026-63891'
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Threats Tagged 'cve-2026-63891'
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In the Linux kernel, the following vulnerability has been resolved: thunderbolt: property: Cap recursion depth in __tb_property_parse_dir() A… (CVE-2026-63891)CVE-2026-63891 0 A vulnerability in the Linux kernel's Thunderbolt property parser (__tb_property_parse_dir) allows a crafted peer to cause unbounded recursion, exhausting the kernel stack and triggering a guard page fault. This occurs because a DIRECTORY entry's value is used as a directory offset for recursive calls without a recursion depth limit. The issue affects the PROPERTIES_REQUEST control-plane exchange and can be triggered by any untrusted XDomain peer without authentication. The vulnerability has been resolved by introducing a recursion depth limit of 8. Operators can also disable XDomain host-to-host discovery to mitigate the risk. Join the discussion | GCVE Database | 07/19/2026, 18:31:44 UTC Added: 07/19/2026, 19:38:19 UTC |
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