Cloudanix VulnDB

CVE-2026-23099

High · 7.1

CVSS

7.1

EPSS

0.2%

Published

Feb 4, 2026

CISA due date

—

The record

In the Linux kernel, the following vulnerability has been resolved: bonding: limit BOND_MODE_8023AD to Ethernet devices BOND_MODE_8023AD makes sense for ARPHRD_ETHER only. syzbot reported: BUG: KASAN: global-out-of-bounds in __hw_addr_create net/core/dev_addr_lists.c:63 [inline] BUG: KASAN: global-out-of-bounds in __hw_addr_add_ex+0x25d/0x760 net/core/dev_addr_lists.c:118 Read of size 16 at addr ffffffff8bf94040 by task syz.1.3580/19497 CPU: 1 UID: 0 PID: 19497 Comm: syz.1.3580 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 Call Trace: <TASK> dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [inline] print_report+0xca/0x240 mm/kasan/report.c:482 kasan_report+0x118/0x150 mm/kasan/report.c:595 check_region_inline mm/kasan/generic.c:-1 [inline] kasan_check_range+0x2b0/0x2c0 mm/kasan/generic.c:200 __asan_memcpy+0x29/0x70 mm/kasan/shadow.c:105 __hw_addr_create net/core/dev_addr_lists.c:63 [inline] __hw_addr_add_ex+0x25d/0x760 net/core/dev_addr_lists.c:118 __dev_mc_add net/core/dev_addr_lists.c:868 [inline] dev_mc_add+0xa1/0x120 net/core/dev_addr_lists.c:886 bond_enslave+0x2b8b/0x3ac0 drivers/net/bonding/bond_main.c:2180 do_set_master+0x533/0x6d0 net/core/rtnetlink.c:2963 do_setlink+0xcf0/0x41c0 net/core/rtnetlink.c:3165 rtnl_changelink net/core/rtnetlink.c:3776 [inline] __rtnl_newlink net/core/rtnetlink.c:3935 [inline] rtnl_newlink+0x161c/0x1c90 net/core/rtnetlink.c:4072 rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6958 netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2550 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg+0x21c/0x270 net/socket.c:742 ____sys_sendmsg+0x505/0x820 net/socket.c:2592 ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2646 __sys_sendmsg+0x164/0x220 net/socket.c:2678 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline] __do_fast_syscall_32+0x1dc/0x560 arch/x86/entry/syscall_32.c:307 do_fast_syscall_32+0x34/0x80 arch/x86/entry/syscall_32.c:332 entry_SYSENTER_compat_after_hwframe+0x84/0x8e </TASK> The buggy address belongs to the variable: lacpdu_mcast_addr+0x0/0x40

Affected packages

Ecosystem Package Introduced Fixed
Linux Kernel 2.6.24 5.15.199
openSUSE:Leap 16.0 dtb-aarch64 0 6.12.0-160000.27.1
openSUSE:Leap 16.0 kernel-64kb 0 6.12.0-160000.27.1
openSUSE:Leap 16.0 kernel-azure 0 6.12.0-160000.27.1
openSUSE:Leap 16.0 kernel-default 0 6.12.0-160000.27.1
openSUSE:Leap 16.0 kernel-default-base 0 6.12.0-160000.27.1.160000.2.8
openSUSE:Leap 16.0 kernel-docs 0 6.12.0-160000.27.1
openSUSE:Leap 16.0 kernel-kvmsmall 0 6.12.0-160000.27.1
openSUSE:Leap 16.0 kernel-obs-build 0 6.12.0-160000.27.1
openSUSE:Leap 16.0 kernel-obs-qa 0 6.12.0-160000.27.1
openSUSE:Leap 16.0 kernel-rt 0 6.12.0-160000.27.1
openSUSE:Leap 16.0 kernel-source 0 6.12.0-160000.27.1
openSUSE:Leap 16.0 kernel-syms 0 6.12.0-160000.27.1
openSUSE:Leap 16.0 kernel-zfcpdump 0 6.12.0-160000.27.1

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