Skip to content
CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-99070

ipv6: do not warn on route notification size race

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
Linux

Description

In the Linux kernel, the following vulnerability has been resolved: ipv6: do not warn on route notification size race fib6_info_hw_flags_set() sizes the skb with rt6_nlmsg_size() and later fills it with rt6_fill_node(). With nexthop compatibility mode enabled, a concurrent replacement can grow the group between these independent snapshots. rt6_fill_node() can then legitimately return -EMSGSIZE, so the warning does not prove a sizing bug. Remove the warning. The existing error path still frees the skb and reports the error to listeners.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 907eea486888cfe118c19759bbc4b8fca2e004df to < dac2b0328495971c7b417fd0143e53643343936eaffected
  • 907eea486888cfe118c19759bbc4b8fca2e004df to < 24b2c95a046e15c9504a6d672b6b0b252952493faffected
  • 907eea486888cfe118c19759bbc4b8fca2e004df to < 8a3b935b6b6037eefb36bd27a60793a008358e8daffected
  • 907eea486888cfe118c19759bbc4b8fca2e004df to < 7b112bd43f1172fb152e848570a957467008a5aeaffected
  • 907eea486888cfe118c19759bbc4b8fca2e004df to < 4ac7d92a4698e34e614c254359665b9de1f65283affected
  • 907eea486888cfe118c19759bbc4b8fca2e004df to < 291fe0bafee78c95f9f2e7f579f17793fd5a1e5aaffected
  • 907eea486888cfe118c19759bbc4b8fca2e004df to < c97426ec649d99596d8969e1a052c16b14b7b485affected

Linux Linux

Default version status: affected

  • 5.12affected
  • 0 to < 5.12unaffected
  • 5.15.224 to ≤ 5.15.*unaffected
  • 6.1.191 to ≤ 6.1.*unaffected
  • 6.6.160 to ≤ 6.6.*unaffected
  • 6.12.113 to ≤ 6.12.*unaffected
  • 6.18.57 to ≤ 6.18.*unaffected
  • 7.2.11 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References