In the Linux kernel, the following vulnerability has been resolved: bareudp: fix NULL pointer dereference in bareudp_fill_metadata_dst() bareudp_fill_metadata_dst() passes bareudp->sock to udp_tunnel6_dst_lookup() in the IPv6 path without a NULL check. The socket is only created in bareudp_open() and NULLed in bareudp_stop(), so calling this function while the device is down triggers a NULL dereference via sock->sk. BUG: kernel NULL pointer dereference, address: 0000000000000018 RIP: 0010:udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:160) Call Trace: <TASK> bareudp_fill_metadata_dst (drivers/net/bareudp.c:532) do_execute_actions (net/openvswitch/actions.c:901) ovs_execute_actions (net/openvswitch/actions.c:1589) ovs_packet_cmd_execute (net/openvswitch/datapath.c:700) genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114) genl_rcv_msg (net/netlink/genetlink.c:1209) netlink_rcv_skb (net/netlink/af_netlink.c:2550) </TASK> Add a NULL check returning -ESHUTDOWN, consistent with the xmit paths in the same driver.
Update Linux/Linux to 31e010a106ff6cd8ccac4bfee547fd3fa1015574 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanbareudp: fix NULL pointer dereference in bareudp_fill_metadata_dst() affects Linux/Linux (generic), Linux/Linux (generic). Severity is medium. In the Linux kernel, the following vulnerability has been resolved: bareudp: fix NULL pointer dereference in bareudp_fill_metadata_dst() bareudp_fill_metadata_dst() passes bareudp->sock to udp_tunnel6_dst_lookup() in the IPv6 path without a NULL check. The socket is only created in bareudp_open() and NULLed in bareudp_stop(), so calling this function while the device is down triggers a NULL dereference via sock->sk. BUG: kernel NULL pointer dereference, address: 0000000000000018 RIP: 0010:udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:160) Call Trace: <TASK> bareudp_fill_metadata_dst (drivers/net/bareudp.c:532) do_execute_actions (net/openvswitch/actions.c:901) ovs_execute_actions (net/openvswitch/actions.c:1589) ovs_packet_cmd_execute (net/openvswitch/datapath.c:700) genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114) genl_rcv_msg (net/netlink/genetlink.c:1209) netlink_rcv_skb (net/netlink/af_netlink.c:2550) </TASK> Add a NULL check returning -ESHUTDOWN, consistent with the xmit paths in the same driver.
AI coding agents often install or upgrade packages automatically in generic. A medium vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
In the Linux kernel, the following vulnerability has been resolved: bareudp: fix NULL pointer dereference in bareudp_fill_metadata_dst() bareudp_fill_metadata_dst() passes bareudp->sock to udp_tunnel6_dst_lookup() in the IPv6 path without a NULL check. The socket is only created in bareudp_open() and NULLed in bareudp_stop(), so calling this function while the device is down triggers a NULL dereference via sock->sk. BUG: kernel NULL pointer dereference, address: 0000000000000018 RIP: 0010:udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:160) Call Trace: <TASK> bareudp_fill_metadata_dst (drivers/net/bareudp.c:532) do_execute_actions (net/openvswitch/actions.c:901) ovs_execute_actions (net/openvswitch/actions.c:1589) ovs_packet_cmd_execute (net/openvswitch/datapath.c:700) genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114) genl_rcv_msg (net/netlink/genetlink.c:1209) netlink_rcv_skb (net/netlink/af_netlink.c:2550) </TASK> Add a NULL check returning -ESHUTDOWN, consistent with the xmit paths in the same driver.
Update Linux/Linux to 31e010a106ff6cd8ccac4bfee547fd3fa1015574 if you use the affected versions. Test the change in a non-production environment first.
Local check
hol-guard supply-chain scanbareudp: fix NULL pointer dereference in bareudp_fill_metadata_dst() affects Linux/Linux (generic), Linux/Linux (generic). Severity is medium. In the Linux kernel, the following vulnerability has been resolved: bareudp: fix NULL pointer dereference in bareudp_fill_metadata_dst() bareudp_fill_metadata_dst() passes bareudp->sock to udp_tunnel6_dst_lookup() in the IPv6 path without a NULL check. The socket is only created in bareudp_open() and NULLed in bareudp_stop(), so calling this function while the device is down triggers a NULL dereference via sock->sk. BUG: kernel NULL pointer dereference, address: 0000000000000018 RIP: 0010:udp_tunnel6_dst_lookup (net/ipv6/ip6_udp_tunnel.c:160) Call Trace: <TASK> bareudp_fill_metadata_dst (drivers/net/bareudp.c:532) do_execute_actions (net/openvswitch/actions.c:901) ovs_execute_actions (net/openvswitch/actions.c:1589) ovs_packet_cmd_execute (net/openvswitch/datapath.c:700) genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114) genl_rcv_msg (net/netlink/genetlink.c:1209) netlink_rcv_skb (net/netlink/af_netlink.c:2550) </TASK> Add a NULL check returning -ESHUTDOWN, consistent with the xmit paths in the same driver.
AI coding agents often install or upgrade packages automatically in generic. A medium vulnerability in a dependency can be pulled into a project through a normal install or update without a human reviewing the change, expanding the blast radius from a single package to every agent workspace that depends on it.
| Package | Affected range | Fixed version |
|---|
| Linux/Linuxgeneric | >=571912c69f0ed731bd1e071ade9dc7ca4aa52065 <31e010a106ff6cd8ccac4bfee547fd3fa1015574 || >=571912c69f0ed731bd1e071ade9dc7ca4aa52065 <55193df8d6d33318435f19572bf5ea47a22eee28 || >=571912c69f0ed731bd1e071ade9dc7ca4aa52065 <51eef9c072aa3405a6823a96ae666d38a3b48750 || >=571912c69f0ed731bd1e071ade9dc7ca4aa52065 <a0f4e4e8e0f5e24ddd83e3d1221732621cf34636 || >=571912c69f0ed731bd1e071ade9dc7ca4aa52065 <35a115a204be08f97450b0389413e218268ef4a2 || >=571912c69f0ed731bd1e071ade9dc7ca4aa52065 <74a02921c48fcd35a7881956c9e5c52b86595f5d || >=571912c69f0ed731bd1e071ade9dc7ca4aa52065 <638905520fc4fae6a80991563f264131545ba3df || >=571912c69f0ed731bd1e071ade9dc7ca4aa52065 <aa6c6d9ee064aabfede4402fd1283424e649ca19 | 31e010a106ff6cd8ccac4bfee547fd3fa1015574, 55193df8d6d33318435f19572bf5ea47a22eee28, 51eef9c072aa3405a6823a96ae666d38a3b48750, a0f4e4e8e0f5e24ddd83e3d1221732621cf34636, 35a115a204be08f97450b0389413e218268ef4a2, 74a02921c48fcd35a7881956c9e5c52b86595f5d, 638905520fc4fae6a80991563f264131545ba3df, aa6c6d9ee064aabfede4402fd1283424e649ca19 |
|---|---|---|
| Linux/Linuxgeneric | 5.7 | Not reported |
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by CVE List V5 (cvelist).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL Guard| Package | Affected range | Fixed version |
|---|
| Linux/Linuxgeneric | >=571912c69f0ed731bd1e071ade9dc7ca4aa52065 <31e010a106ff6cd8ccac4bfee547fd3fa1015574 || >=571912c69f0ed731bd1e071ade9dc7ca4aa52065 <55193df8d6d33318435f19572bf5ea47a22eee28 || >=571912c69f0ed731bd1e071ade9dc7ca4aa52065 <51eef9c072aa3405a6823a96ae666d38a3b48750 || >=571912c69f0ed731bd1e071ade9dc7ca4aa52065 <a0f4e4e8e0f5e24ddd83e3d1221732621cf34636 || >=571912c69f0ed731bd1e071ade9dc7ca4aa52065 <35a115a204be08f97450b0389413e218268ef4a2 || >=571912c69f0ed731bd1e071ade9dc7ca4aa52065 <74a02921c48fcd35a7881956c9e5c52b86595f5d || >=571912c69f0ed731bd1e071ade9dc7ca4aa52065 <638905520fc4fae6a80991563f264131545ba3df || >=571912c69f0ed731bd1e071ade9dc7ca4aa52065 <aa6c6d9ee064aabfede4402fd1283424e649ca19 | 31e010a106ff6cd8ccac4bfee547fd3fa1015574, 55193df8d6d33318435f19572bf5ea47a22eee28, 51eef9c072aa3405a6823a96ae666d38a3b48750, a0f4e4e8e0f5e24ddd83e3d1221732621cf34636, 35a115a204be08f97450b0389413e218268ef4a2, 74a02921c48fcd35a7881956c9e5c52b86595f5d, 638905520fc4fae6a80991563f264131545ba3df, aa6c6d9ee064aabfede4402fd1283424e649ca19 |
|---|---|---|
| Linux/Linuxgeneric | 5.7 | Not reported |
Fixed versions are reported by the source feed; confirm compatibility before updating.
Reported by CVE List V5 (cvelist).
HOL Guard can help your team review package activity against supported protection paths.
Explore HOL Guard