Entreprise française de cybersécurité depuis 2004
☎ 03 60 47 09 81 - info@securiteinfo.com
☎ 03 60 47 09 81 - info@securiteinfo.com
In the Linux kernel, the following vulnerability has been resolved:ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_find()The per-netns IP tunnel hash table is protected by the RTNL mutex andip_tunnel_find() is only called from the control path where the mutex istaken.Add a lockdep expression to hlist_for_each_entry_rcu() inip_tunnel_find() in order to validate that the mutex is held and tosilence the suspicious RCU usage warning [1].[1]WARNING: suspicious RCU usage6.12.0-rc3-custom-gd95d9a31aceb #139 Not tainted-----------------------------net/ipv4/ip_tunnel.c:221 RCU-list traversed in non-reader section!!other info that might help us debug this:rcu_scheduler_active = 2, debug_locks = 11 lock held by ip/362: #0: ffffffff86fc7cb0 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x377/0xf60stack backtrace:CPU: 12 UID: 0 PID: 362 Comm: ip Not tainted 6.12.0-rc3-custom-gd95d9a31aceb #139Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011Call Trace:
No PoCs from references.
- https://github.com/w4zu/Debian_security