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().
References
Configurations
Configuration 1 (hide)
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Configuration 2 (hide)
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History
07 Jan 2025, 17:20
Type | Values Removed | Values Added |
---|---|---|
References | () https://git.kernel.org/stable/c/0cd331dfd6023640c9669d0592bc0fd491205f87 - Patch | |
References | () https://git.kernel.org/stable/c/19d7314f2fb9515bdaac9829d4d8eb34edd1fe95 - Patch | |
References | () https://git.kernel.org/stable/c/24ec8f0da93b8a9fba11600be8a90f0d73fb46f1 - Patch | |
References | () https://git.kernel.org/stable/c/3871aa01e1a779d866fa9dfdd5a836f342f4eb87 - Patch | |
References | () https://git.kernel.org/stable/c/3d3a5b31b43515b5752ff282702ca546ec3e48b6 - Patch | |
References | () https://git.kernel.org/stable/c/6f70f0b412458c622a12d4292782c8e92e210c2f - Patch | |
References | () https://git.kernel.org/stable/c/888e3524be87f3df9fa3c083484e4b62b3e3bb59 - Patch | |
References | () https://git.kernel.org/stable/c/c1701ea85ef0ec7be6a1b36c7da69f572ed2fd12 - Patch | |
References | () https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html - Mailing List | |
References | () https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html - Mailing List | |
First Time |
Debian debian Linux
Debian Linux Linux linux Kernel |
|
CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
CPE | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.8:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.8:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
|
CWE | CWE-476 |
21 Nov 2024, 09:02
Type | Values Removed | Values Added |
---|---|---|
References |
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|
References | () https://git.kernel.org/stable/c/0cd331dfd6023640c9669d0592bc0fd491205f87 - | |
References | () https://git.kernel.org/stable/c/19d7314f2fb9515bdaac9829d4d8eb34edd1fe95 - | |
References | () https://git.kernel.org/stable/c/24ec8f0da93b8a9fba11600be8a90f0d73fb46f1 - | |
References | () https://git.kernel.org/stable/c/3871aa01e1a779d866fa9dfdd5a836f342f4eb87 - | |
References | () https://git.kernel.org/stable/c/3d3a5b31b43515b5752ff282702ca546ec3e48b6 - | |
References | () https://git.kernel.org/stable/c/6f70f0b412458c622a12d4292782c8e92e210c2f - | |
References | () https://git.kernel.org/stable/c/888e3524be87f3df9fa3c083484e4b62b3e3bb59 - | |
References | () https://git.kernel.org/stable/c/c1701ea85ef0ec7be6a1b36c7da69f572ed2fd12 - |
05 Nov 2024, 10:15
Type | Values Removed | Values Added |
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References |
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27 Jun 2024, 12:15
Type | Values Removed | Values Added |
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References |
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25 Jun 2024, 23:15
Type | Values Removed | Values Added |
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References |
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02 Apr 2024, 12:50
Type | Values Removed | Values Added |
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Summary |
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02 Apr 2024, 07:15
Type | Values Removed | Values Added |
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New CVE |
Information
Published : 2024-04-02 07:15
Updated : 2025-01-07 17:20
NVD link : CVE-2024-26663
Mitre link : CVE-2024-26663
CVE.ORG link : CVE-2024-26663
JSON object : View
Products Affected
linux
- linux_kernel
debian
- debian_linux
CWE
CWE-476
NULL Pointer Dereference