CVE-2026-23175
HighSummary
W jądrze systemu Linux zidentyfikowano podatność, która została rozwiązana. Zmiana w operacjach IPV6_ADD_MEMBERSHIP i MCAST_JOIN_GROUP spowodowała błąd asercji w kodzie związanym z VLAN, co może prowadzić do problemów z obsługą multicastu.
Risk Assessment
Podatność ta może prowadzić do niestabilności systemu oraz problemów z komunikacją w sieci, co może wpłynąć na dostępność usług w organizacji.
Recommendation
Zaleca się aktualizację jądra systemu Linux do najnowszej wersji, aby usunąć tę podatność oraz monitorowanie systemu pod kątem ewentualnych problemów z siecią.
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Original NVD description (English source)
In the Linux kernel, the following vulnerability has been resolved: net: cpsw: Execute ndo_set_rx_mode callback in a work queue Commit 1767bb2d47b7 ("ipv6: mcast: Don't hold RTNL for IPV6_ADD_MEMBERSHIP and MCAST_JOIN_GROUP.") removed the RTNL lock for IPV6_ADD_MEMBERSHIP and MCAST_JOIN_GROUP operations. However, this change triggered the following call trace on my BeagleBone Black board: WARNING: net/8021q/vlan_core.c:236 at vlan_for_each+0x120/0x124, CPU#0: rpcbind/481 RTNL: assertion failed at net/8021q/vlan_core.c (236) Modules linked in: CPU: 0 UID: 997 PID: 481 Comm: rpcbind Not tainted 6.19.0-rc7-next-20260130-yocto-standard+ #35 PREEMPT Hardware name: Generic AM33XX (Flattened Device Tree) Call trace: unwind_backtrace from show_stack+0x28/0x2c show_stack from dump_stack_lvl+0x30/0x38 dump_stack_lvl from __warn+0xb8/0x11c __warn from warn_slowpath_fmt+0x130/0x194 warn_slowpath_fmt from vlan_for_each+0x120/0x124 vlan_for_each from cpsw_add_mc_addr+