From: Alok Tiwari <alok.a.tiwari@oracle.com> stable inclusion from stable-v6.6.117 commit c018a87942bf1607aeebf8dba5a210ca9a09a0fd category: bugfix bugzilla: https://atomgit.com/src-openeuler/kernel/issues/11621 CVE: CVE-2025-68191 Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- [ Upstream commit dc2f650f7e6857bf384069c1a56b2937a1ee370d ] netdev_WARN() uses WARN/WARN_ON to print a backtrace along with file and line information. In this case, udp_tunnel_nic_register() returning an error is just a failed operation, not a kernel bug. udp_tunnel_nic_register() can fail due to a memory allocation failure (kzalloc() or udp_tunnel_nic_alloc()). This is a normal runtime error and not a kernel bug. Replace netdev_WARN() with netdev_warn() accordingly. Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com> Reviewed-by: Simon Horman <horms@kernel.org> Link: https://patch.msgid.link/20250910195031.3784748-1-alok.a.tiwari@oracle.com Signed-off-by: Jakub Kicinski <kuba@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org> Signed-off-by: Li Xiasong <lixiasong1@huawei.com> --- net/ipv4/udp_tunnel_nic.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ipv4/udp_tunnel_nic.c b/net/ipv4/udp_tunnel_nic.c index 029219749785..a08b0b6e0727 100644 --- a/net/ipv4/udp_tunnel_nic.c +++ b/net/ipv4/udp_tunnel_nic.c @@ -899,7 +899,7 @@ udp_tunnel_nic_netdevice_event(struct notifier_block *unused, err = udp_tunnel_nic_register(dev); if (err) - netdev_WARN(dev, "failed to register for UDP tunnel offloads: %d", err); + netdev_warn(dev, "failed to register for UDP tunnel offloads: %d", err); return notifier_from_errno(err); } /* All other events will need the udp_tunnel_nic state */ -- 2.34.1