FKIE_CVE-2026-23099

Vulnerability from fkie_nvd - Published: 2026-02-04 17:16 - Updated: 2026-03-18 20:09
Severity ?
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Summary
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
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/43dee6f7ef1d228821de1b61c292af3744c8d7daPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/5063b2cd9b27d35ab788d707d7858ded0acc8f1dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/72925dbb0c8c7b16bf922e93c6cc03cbd8c955c4Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/80c881e53a4fa0a80fa4bef7bc0ead0e8e88940dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c84fcb79e5dbde0b8d5aeeaf04282d2149aebcf6Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ef68afb1bee8d35a18896c27d7358079353d8d8aPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
To clipboard 

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  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbonding: limit BOND_MODE_8023AD to Ethernet devices\n\nBOND_MODE_8023AD makes sense for ARPHRD_ETHER only.\n\nsyzbot reported:\n\n BUG: KASAN: global-out-of-bounds in __hw_addr_create net/core/dev_addr_lists.c:63 [inline]\n BUG: KASAN: global-out-of-bounds in __hw_addr_add_ex+0x25d/0x760 net/core/dev_addr_lists.c:118\nRead of size 16 at addr ffffffff8bf94040 by task syz.1.3580/19497\n\nCPU: 1 UID: 0 PID: 19497 Comm: syz.1.3580 Tainted: G             L      syzkaller #0 PREEMPT(full)\nTainted: [L]=SOFTLOCKUP\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025\nCall Trace:\n \u003cTASK\u003e\n  dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120\n  print_address_description mm/kasan/report.c:378 [inline]\n  print_report+0xca/0x240 mm/kasan/report.c:482\n  kasan_report+0x118/0x150 mm/kasan/report.c:595\n check_region_inline mm/kasan/generic.c:-1 [inline]\n  kasan_check_range+0x2b0/0x2c0 mm/kasan/generic.c:200\n  __asan_memcpy+0x29/0x70 mm/kasan/shadow.c:105\n  __hw_addr_create net/core/dev_addr_lists.c:63 [inline]\n  __hw_addr_add_ex+0x25d/0x760 net/core/dev_addr_lists.c:118\n  __dev_mc_add net/core/dev_addr_lists.c:868 [inline]\n  dev_mc_add+0xa1/0x120 net/core/dev_addr_lists.c:886\n  bond_enslave+0x2b8b/0x3ac0 drivers/net/bonding/bond_main.c:2180\n  do_set_master+0x533/0x6d0 net/core/rtnetlink.c:2963\n  do_setlink+0xcf0/0x41c0 net/core/rtnetlink.c:3165\n  rtnl_changelink net/core/rtnetlink.c:3776 [inline]\n  __rtnl_newlink net/core/rtnetlink.c:3935 [inline]\n  rtnl_newlink+0x161c/0x1c90 net/core/rtnetlink.c:4072\n  rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6958\n  netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2550\n  netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]\n  netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1344\n  netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894\n  sock_sendmsg_nosec net/socket.c:727 [inline]\n  __sock_sendmsg+0x21c/0x270 net/socket.c:742\n  ____sys_sendmsg+0x505/0x820 net/socket.c:2592\n  ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2646\n  __sys_sendmsg+0x164/0x220 net/socket.c:2678\n  do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]\n  __do_fast_syscall_32+0x1dc/0x560 arch/x86/entry/syscall_32.c:307\n  do_fast_syscall_32+0x34/0x80 arch/x86/entry/syscall_32.c:332\n entry_SYSENTER_compat_after_hwframe+0x84/0x8e\n \u003c/TASK\u003e\n\nThe buggy address belongs to the variable:\n lacpdu_mcast_addr+0x0/0x40"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nbonding: limitar BOND_MODE_8023AD a dispositivos Ethernet\n\nBOND_MODE_8023AD solo tiene sentido para ARPHRD_ETHER.\n\nsyzbot inform\u00f3:\n\n BUG: KASAN: global-out-of-bounds en __hw_addr_create net/core/dev_addr_lists.c:63 [inline]\n BUG: KASAN: global-out-of-bounds en __hw_addr_add_ex+0x25d/0x760 net/core/dev_addr_lists.c:118\nLectura de tama\u00f1o 16 en la direcci\u00f3n ffffffff8bf94040 por la tarea syz.1.3580/19497\n\nCPU: 1 UID: 0 PID: 19497 Comm: syz.1.3580 Tainted: G L syzkaller #0 PREEMPT(full)\nTainted: [L]=SOFTLOCKUP\nNombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025\nTraza de Llamadas:\n \n  dump_stack_lvl+0xe8/0x150 lib/dump_stack.c:120\n  print_address_description mm/kasan/report.c:378 [inline]\n  print_report+0xca/0x240 mm/kasan/report.c:482\n  kasan_report+0x118/0x150 mm/kasan/report.c:595\n check_region_inline mm/kasan/generic.c:-1 [inline]\n  kasan_check_range+0x2b0/0x2c0 mm/kasan/generic.c:200\n  __asan_memcpy+0x29/0x70 mm/kasan/shadow.c:105\n  __hw_addr_create net/core/dev_addr_lists.c:63 [inline]\n  __hw_addr_add_ex+0x25d/0x760 net/core/dev_addr_lists.c:118\n  __dev_mc_add net/core/dev_addr_lists.c:868 [inline]\n  dev_mc_add+0xa1/0x120 net/core/dev_addr_lists.c:886\n  bond_enslave+0x2b8b/0x3ac0 drivers/net/bonding/bond_main.c:2180\n  do_set_master+0x533/0x6d0 net/core/rtnetlink.c:2963\n  do_setlink+0xcf0/0x41c0 net/core/rtnetlink.c:3165\n  rtnl_changelink net/core/rtnetlink.c:3776 [inline]\n  __rtnl_newlink net/core/rtnetlink.c:3935 [inline]\n  rtnl_newlink+0x161c/0x1c90 net/core/rtnetlink.c:4072\n  rtnetlink_rcv_msg+0x7cf/0xb70 net/core/rtnetlink.c:6958\n  netlink_rcv_skb+0x208/0x470 net/netlink/af_netlink.c:2550\n  netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline]\n  netlink_unicast+0x82f/0x9e0 net/netlink/af_netlink.c:1344\n  netlink_sendmsg+0x805/0xb30 net/netlink/af_netlink.c:1894\n  sock_sendmsg_nosec net/socket.c:727 [inline]\n  __sock_sendmsg+0x21c/0x270 net/socket.c:742\n  ____sys_sendmsg+0x505/0x820 net/socket.c:2592\n  ___sys_sendmsg+0x21f/0x2a0 net/socket.c:2646\n  __sys_sendmsg+0x164/0x220 net/socket.c:2678\n  do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]\n  __do_fast_syscall_32+0x1dc/0x560 arch/x86/entry/syscall_32.c:307\n  do_fast_syscall_32+0x34/0x80 arch/x86/entry/syscall_32.c:332\n entry_SYSENTER_compat_after_hwframe+0x84/0x8e\n \n\nLa direcci\u00f3n err\u00f3nea pertenece a la variable:\n lacpdu_mcast_addr+0x0/0x40"
    }
  ],
  "id": "CVE-2026-23099",
  "lastModified": "2026-03-18T20:09:32.157",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.2,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-02-04T17:16:20.777",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "url": "https://git.kernel.org/stable/c/c84fcb79e5dbde0b8d5aeeaf04282d2149aebcf6"
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      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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      "url": "https://git.kernel.org/stable/c/ef68afb1bee8d35a18896c27d7358079353d8d8a"
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  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.