https://db.gcve.eu Contains only the most 10 recent entries. http://www.rssboard.org/rss-specification python-feedgen en Mon, 09 Nov 2026 18:01:44 +0000 https://db.gcve.eu/vuln/cve-2026-99121 <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>ipv4: avoid divide by zero in fib_rebalance</p> <p>fib_rebalance() computes the total eligible nexthop weight in one pass and programs upper bounds in a second pass. A concurrent change to ignore_routes_with_linkdown can make the first pass return zero while the second pass sees an eligible nexthop, resulting in division by zero.</p> <p>If the first pass reports a zero total, set each nexthop upper bound to -1 and skip the division. This matches the IPv6 fix in commit d2c26c2911dd (&#34;ipv6: avoid divide by zero in rt6_multipath_rebalance&#34;) and preserves the lock-free rebalance path.</p> <p><strong>Affected:</strong> Linux</p> <p>In the Linux kernel, the following vulnerability has been resolved:</p> <p>ipv4: avoid divide by zero in fib_rebalance</p> <p>fib_rebalance() computes the total eligible nexthop weight in one pass and programs upper bounds in a second pass. A concurrent change to ignore_routes_with_linkdown can make the first pass return zero while the second pass sees an eligible nexthop, resulting in division by zero.</p> <p>If the first pass reports a zero total, set each nexthop upper bound to -1 and skip the division. This matches the IPv6 fix in commit d2c26c2911dd (&#34;ipv6: avoid divide by zero in rt6_multipath_rebalance&#34;) and preserves the lock-free rebalance path.</p> https://db.gcve.eu/vuln/cve-2026-99121