CVE-2024-26663

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Source
https://cve.org/CVERecord?id=CVE-2024-26663
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26663.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2024-26663
Downstream
Related
Published
2024-04-02T06:22:12Z
Modified
2026-08-12T03:51:27Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
tipc: Check the bearer type before calling tipc_udp_nl_bearer_add()
Details

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: 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().

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26663.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
ef20cd4dd1633987bcf46ac34ace2c8af212361f
Fixed
24ec8f0da93b8a9fba11600be8a90f0d73fb46f1
Fixed
6f70f0b412458c622a12d4292782c8e92e210c2f
Fixed
19d7314f2fb9515bdaac9829d4d8eb34edd1fe95
Fixed
c1701ea85ef0ec7be6a1b36c7da69f572ed2fd12
Fixed
3d3a5b31b43515b5752ff282702ca546ec3e48b6
Fixed
888e3524be87f3df9fa3c083484e4b62b3e3bb59
Fixed
0cd331dfd6023640c9669d0592bc0fd491205f87
Fixed
3871aa01e1a779d866fa9dfdd5a836f342f4eb87

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26663.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.9.0
Fixed
4.19.307
Type
ECOSYSTEM
Events
Introduced
4.20.0
Fixed
5.4.269
Type
ECOSYSTEM
Events
Introduced
5.5.0
Fixed
5.10.210
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.149
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.78
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.17
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.7.5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-26663.json"