Answer in brief
CVE-2024-26663 records a Unknown severity vulnerability in tipc: Check the bearer type before calling tipc_udp_nl_bearer_add(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2024-26663 records a Unknown severity vulnerability in tipc: Check the bearer type before calling tipc_udp_nl_bearer_add(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=ef20cd4dd1633987bcf46ac34ace2c8af212361f <24ec8f0da93b8a9fba11600be8a90f0d73fb46f1 || >=ef20cd4dd1633987bcf46ac34ace2c8af212361f <6f70f0b412458c622a12d4292782c8e92e210c2f || >=ef20cd4dd1633987bcf46ac34ace2c8af212361f <19d7314f2fb9515bdaac9829d4d8eb34edd1fe95 || >=ef20cd4dd1633987bcf46ac34ace2c8af212361f <c1701ea85ef0ec7be6a1b36c7da69f572ed2fd12 || >=ef20cd4dd1633987bcf46ac34ace2c8af212361f <3d3a5b31b43515b5752ff282702ca546ec3e48b6 || >=ef20cd4dd1633987bcf46ac34ace2c8af212361f <888e3524be87f3df9fa3c083484e4b62b3e3bb59 || >=ef20cd4dd1633987bcf46ac34ace2c8af212361f <0cd331dfd6023640c9669d0592bc0fd491205f87 || >=ef20cd4dd1633987bcf46ac34ace2c8af212361f <3871aa01e1a779d866fa9dfdd5a836f342f4eb87 | 24ec8f0da93b8a9fba11600be8a90f0d73fb46f1, 6f70f0b412458c622a12d4292782c8e92e210c2f, 19d7314f2fb9515bdaac9829d4d8eb34edd1fe95, c1701ea85ef0ec7be6a1b36c7da69f572ed2fd12, 3d3a5b31b43515b5752ff282702ca546ec3e48b6, 888e3524be87f3df9fa3c083484e4b62b3e3bb59, 0cd331dfd6023640c9669d0592bc0fd491205f87, 3871aa01e1a779d866fa9dfdd5a836f342f4eb87 |
| Linux/Linuxgeneric | 4.9 | Not reported |
Published upstream
Apr 2, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
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().
Quoted source text, attributed separately from HOL analysis.
A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=ef20cd4dd1633987bcf46ac34ace2c8af212361f <24ec8f0da93b8a9fba11600be8a90f0d73fb46f1 || >=ef20cd4dd1633987bcf46ac34ace2c8af212361f <6f70f0b412458c622a12d4292782c8e92e210c2f || >=ef20cd4dd1633987bcf46ac34ace2c8af212361f <19d7314f2fb9515bdaac9829d4d8eb34edd1fe95 || >=ef20cd4dd1633987bcf46ac34ace2c8af212361f <c1701ea85ef0ec7be6a1b36c7da69f572ed2fd12 || >=ef20cd4dd1633987bcf46ac34ace2c8af212361f <3d3a5b31b43515b5752ff282702ca546ec3e48b6 || >=ef20cd4dd1633987bcf46ac34ace2c8af212361f <888e3524be87f3df9fa3c083484e4b62b3e3bb59 || >=ef20cd4dd1633987bcf46ac34ace2c8af212361f <0cd331dfd6023640c9669d0592bc0fd491205f87 || >=ef20cd4dd1633987bcf46ac34ace2c8af212361f <3871aa01e1a779d866fa9dfdd5a836f342f4eb87 | 24ec8f0da93b8a9fba11600be8a90f0d73fb46f1, 6f70f0b412458c622a12d4292782c8e92e210c2f, 19d7314f2fb9515bdaac9829d4d8eb34edd1fe95, c1701ea85ef0ec7be6a1b36c7da69f572ed2fd12, 3d3a5b31b43515b5752ff282702ca546ec3e48b6, 888e3524be87f3df9fa3c083484e4b62b3e3bb59, 0cd331dfd6023640c9669d0592bc0fd491205f87, 3871aa01e1a779d866fa9dfdd5a836f342f4eb87 |
| Linux/Linuxgeneric | 4.9 | Not reported |
Published upstream
Apr 2, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
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().
Quoted source text, attributed separately from HOL analysis.