UBUNTU-CVE-2024-26663
In the Linux kernel, the following vulnerability has been resolved: tipc: Check the bearer type before calling tipc_udp_nl_bearer_add() syzbot reported the following general protection fault [1]: general protection fault, probably for non-canonical address 0xdffffc0000000010: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000080-0x0000000000000087] ... RIP: 0010:tipc_udp_is_known_peer+0x9c/0x250 net/tipc/udp_media.c:291 ... Call Trace: <TASK> tipc_udp_nl_bearer_add+0x212/0x2f0 net/tipc/udp_media.c:646 tipc_nl_bearer_add+0x21e/0x360 net/tipc/bearer.c:1089 genl_family_rcv_msg_doit+0x1fc/0x2e0 net/netlink/genetlink.c:972 genl_family_rcv_msg net/netlink/genetlink.c:1052 [inline] genl_rcv_msg+0x561/0x800 net/netlink/genetlink.c:1067 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2544 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1076 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline] netlink_unicast+0x53b/0x810 net/netlink/af_netlink.c:1367 netlink_sendmsg+0x8b7/0xd70 net/netlink/af_netlink.c:1909 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0xd5/0x180 net/socket.c:745 ____sys_sendmsg+0x6ac/0x940 net/socket.c:2584 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2638 __sys_sendmsg+0x117/0x1e0 net/socket.c:2667 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b The cause of this issue is that when tipc_nl_bearer_add() is called with the TIPC_NLA_BEARER_UDP_OPTS attribute, tipc_udp_nl_bearer_add() is called even if the bearer is not UDP. tipc_udp_is_known_peer() called by tipc_udp_nl_bearer_add() assumes that the media_ptr field of the tipc_bearer has an udp_bearer type object, so the function goes crazy for non-UDP bearers. This patch fixes the issue by checking the bearer type before calling tipc_udp_nl_bearer_add() in tipc_nl_bearer_add().
02 / AFFECTED SOFTWARE
Affected packages
8 explicit affected versions
133 explicit affected versions
10 explicit affected versions
34 explicit affected versions
9 explicit affected versions
9 explicit affected versions
29 explicit affected versions
41 explicit affected versions
50 explicit affected versions
6 explicit affected versions
12 explicit affected versions
18 explicit affected versions
6 explicit affected versions
50 explicit affected versions
36 explicit affected versions
43 explicit affected versions
57 explicit affected versions
47 explicit affected versions
36 explicit affected versions
10 explicit affected versions
7 explicit affected versions
44 explicit affected versions
84 explicit affected versions
11 explicit affected versions
68 explicit affected versions
35 explicit affected versions
3 explicit affected versions
14 explicit affected versions
18 explicit affected versions
4 explicit affected versions
5 explicit affected versions
99 explicit affected versions
30 explicit affected versions
86 explicit affected versions
13 explicit affected versions
23 explicit affected versions
1 explicit affected versions
21 explicit affected versions
9 explicit affected versions
16 explicit affected versions
10 explicit affected versions
41 explicit affected versions
7 explicit affected versions
12 explicit affected versions
34 explicit affected versions
12 explicit affected versions
12 explicit affected versions
7 explicit affected versions
74 explicit affected versions
12 explicit affected versions
89 explicit affected versions
97 explicit affected versions
12 explicit affected versions
85 explicit affected versions
10 explicit affected versions
10 explicit affected versions
37 explicit affected versions
11 explicit affected versions
10 explicit affected versions
23 explicit affected versions
1 explicit affected versions
27 explicit affected versions
26 explicit affected versions
13 explicit affected versions
4 explicit affected versions
1 explicit affected versions
29 explicit affected versions
78 explicit affected versions
13 explicit affected versions
47 explicit affected versions
1 explicit affected versions
73 explicit affected versions
45 explicit affected versions
89 explicit affected versions
7 explicit affected versions
33 explicit affected versions
23 explicit affected versions
10 explicit affected versions
11 explicit affected versions
97 explicit affected versions
11 explicit affected versions
12 explicit affected versions
120 explicit affected versions
7 explicit affected versions
12 explicit affected versions
88 explicit affected versions
36 explicit affected versions
28 explicit affected versions
113 explicit affected versions
44 explicit affected versions
26 explicit affected versions
23 explicit affected versions
1 explicit affected versions
13 explicit affected versions
120 explicit affected versions
47 explicit affected versions
16 explicit affected versions
47 explicit affected versions
37 explicit affected versions
3 explicit affected versions
74 explicit affected versions
1 explicit affected versions
2 explicit affected versions
54 explicit affected versions
51 explicit affected versions
73 explicit affected versions
1 explicit affected versions
12 explicit affected versions
27 explicit affected versions
20 explicit affected versions
1 explicit affected versions
1 explicit affected versions
77 explicit affected versions
8 explicit affected versions
5 explicit affected versions
8 explicit affected versions
1 explicit affected versions
10 explicit affected versions
76 explicit affected versions
77 explicit affected versions
13 explicit affected versions
41 explicit affected versions
7 explicit affected versions
75 explicit affected versions
39 explicit affected versions
10 explicit affected versions
12 explicit affected versions
12 explicit affected versions
44 explicit affected versions
16 explicit affected versions
3 explicit affected versions
13 explicit affected versions
26 explicit affected versions
33 explicit affected versions
37 explicit affected versions
12 explicit affected versions
38 explicit affected versions
37 explicit affected versions
36 explicit affected versions
11 explicit affected versions
44 explicit affected versions
8 explicit affected versions
7 explicit affected versions
18 explicit affected versions
48 explicit affected versions
124 explicit affected versions
103 explicit affected versions
4 explicit affected versions
1 explicit affected versions
1 explicit affected versions
42 explicit affected versions
96 explicit affected versions
11 explicit affected versions
43 explicit affected versions
42 explicit affected versions
147 explicit affected versions
10 explicit affected versions
8 explicit affected versions
14 explicit affected versions
77 explicit affected versions
4 explicit affected versions
66 explicit affected versions
9 explicit affected versions
1 explicit affected versions
50 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
In the Linux kernel, the following vulnerability has been resolved: tipc: Check the bearer type before calling tipc_udp_nl_bearer_add() syzbot reported the following general protection fault [1]: general protection fault, probably for non-canonical address 0xdffffc0000000010: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000080-0x0000000000000087] ... RIP: 0010:tipc_udp_is_known_peer+0x9c/0x250 net/tipc/udp_media.c:291 ... Call Trace: <TASK> tipc_udp_nl_bearer_add+0x212/0x2f0 net/tipc/udp_media.c:646 tipc_nl_bearer_add+0x21e/0x360 net/tipc/bearer.c:1089 genl_family_rcv_msg_doit+0x1fc/0x2e0 net/netlink/genetlink.c:972 genl_family_rcv_msg net/netlink/genetlink.c:1052 [inline] genl_rcv_msg+0x561/0x800 net/netlink/genetlink.c:1067 netlink_rcv_skb+0x16b/0x440 net/netlink/af_netlink.c:2544 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1076 netlink_unicast_kernel net/netlink/af_netlink.c:1341 [inline] netlink_unicast+0x53b/0x810 net/netlink/af_netlink.c:1367 netlink_sendmsg+0x8b7/0xd70 net/netlink/af_netlink.c:1909 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg+0xd5/0x180 net/socket.c:745 ____sys_sendmsg+0x6ac/0x940 net/socket.c:2584 ___sys_sendmsg+0x135/0x1d0 net/socket.c:2638 __sys_sendmsg+0x117/0x1e0 net/socket.c:2667 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0x40/0x110 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x63/0x6b The cause of this issue is that when tipc_nl_bearer_add() is called with the TIPC_NLA_BEARER_UDP_OPTS attribute, tipc_udp_nl_bearer_add() is called even if the bearer is not UDP. tipc_udp_is_known_peer() called by tipc_udp_nl_bearer_add() assumes that the media_ptr field of the tipc_bearer has an udp_bearer type object, so the function goes crazy for non-UDP bearers. This patch fixes the issue by checking the bearer type before calling tipc_udp_nl_bearer_add() in tipc_nl_bearer_add().
05 / REFERENCES
Further evidence
- https://git.kernel.org/linus/3871aa01e1a779d866fa9dfdd5a836f342f4eb87
- https://git.kernel.org/stable/c/0cd331dfd6023640c9669d0592bc0fd491205f87
- https://git.kernel.org/stable/c/19d7314f2fb9515bdaac9829d4d8eb34edd1fe95
- https://git.kernel.org/stable/c/24ec8f0da93b8a9fba11600be8a90f0d73fb46f1
- https://git.kernel.org/stable/c/3871aa01e1a779d866fa9dfdd5a836f342f4eb87
- https://git.kernel.org/stable/c/3d3a5b31b43515b5752ff282702ca546ec3e48b6
- https://git.kernel.org/stable/c/6f70f0b412458c622a12d4292782c8e92e210c2f
- https://git.kernel.org/stable/c/888e3524be87f3df9fa3c083484e4b62b3e3bb59
- https://git.kernel.org/stable/c/c1701ea85ef0ec7be6a1b36c7da69f572ed2fd12
- https://ubuntu.com/security/CVE-2024-26663
- https://ubuntu.com/security/notices/USN-6766-1
- https://ubuntu.com/security/notices/USN-6766-2
- https://ubuntu.com/security/notices/USN-6766-3
- https://ubuntu.com/security/notices/USN-6767-1
- https://ubuntu.com/security/notices/USN-6767-2
- https://ubuntu.com/security/notices/USN-6795-1
- https://ubuntu.com/security/notices/USN-6828-1
- https://ubuntu.com/security/notices/USN-6895-1
- https://ubuntu.com/security/notices/USN-6895-2
- https://ubuntu.com/security/notices/USN-6895-3
- https://ubuntu.com/security/notices/USN-6895-4
- https://ubuntu.com/security/notices/USN-6900-1
- https://ubuntu.com/security/notices/USN-7233-1
- https://ubuntu.com/security/notices/USN-7233-2
- https://ubuntu.com/security/notices/USN-7233-3
- https://www.cve.org/CVERecord?id=CVE-2024-26663