EUVD-2026-32379

In the Linux kernel, the following vulnerability has been resolved: net: bridge: mcast: always update mdbnentries for vlan contexts syzbot triggered a warning1 about the number of mdb entries in a context. It turned out that there are multiple ways to trigger that warning today some got added...

UBUNTU-CVE-2026-45913

In the Linux kernel, the following vulnerability has been resolved: net: bridge: mcast: always update mdbnentries for vlan contexts syzbot triggered a warning1 about the number of mdb entries in a context. It turned out that there are multiple ways to trigger that warning today some got added...

CVE-2026-45913

In CVE-2026-45913, the Linux kernel fix targets the bridge multicast code: it always updates mdb_n_entries for VLAN contexts instead of conditional increases, addressing a syzbot warning about unbalanced updates. The solution initializes the counter on port-vlan context creation and increments/de...