Threats Tagged 'ubuntu-cve-2026-31659'
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Threats Tagged 'ubuntu-cve-2026-31659'
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In the Linux kernel, the following vulnerability has been resolved: batman-adv: reject oversized global TT response buffers… (CVE-2026-31659)CVE-2026-31659 0 In the Linux kernel, the following vulnerability has been resolved: batman-adv: reject oversized global TT response buffers batadv_tt_prepare_tvlv_global_data() builds the allocation length for a global TT response in 16-bit temporaries. When a remote originator advertises a large enough global TT, the TT payload length plus the VLAN header offset can exceed 65535 and wrap before kmalloc(). The full-table response path still uses the original TT payload length when it fills tt_change, so the wrapped allocation is too small and batadv_tt_prepare_tvlv_global_data() writes past the end of the heap object before the later packet-size check runs. Fix this by rejecting TT responses whose TVLV value length cannot fit in the 16-bit TVLV payload length field. Join the discussion | GCVE Database | 04/24/2026, 15:16:00 UTC Added: 07/16/2026, 10:39:15 UTC |
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