CVE-2024-57900

Estado: ModificadaAlta (7.8)—

In the Linux kernel, the following vulnerability has been resolved:

ila: serialize calls to nf_register_net_hooks()

syzbot found a race in ila_add_mapping() [1]

commit 031ae72825ce ("ila: call nf_unregister_net_hooks() sooner") attempted to fix a similar issue.

Looking at the syzbot repro, we have concurrent ILA_CMD_ADD commands.

Add a mutex to make sure at most one thread is calling nf_register_net_hooks().

Detalles técnicos trazas, registros y código del informe original

[1]
 BUG: KASAN: slab-use-after-free in rht_key_hashfn include/linux/rhashtable.h:159 [inline]
 BUG: KASAN: slab-use-after-free in __rhashtable_lookup.constprop.0+0x426/0x550 include/linux/rhashtable.h:604
Read of size 4 at addr ffff888028f40008 by task dhcpcd/5501

CPU: 1 UID: 0 PID: 5501 Comm: dhcpcd Not tainted 6.13.0-rc4-syzkaller-00054-gd6ef8b40d075 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 <IRQ>
  __dump_stack lib/dump_stack.c:94 [inline]
  dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120
  print_address_description mm/kasan/report.c:378 [inline]
  print_report+0xc3/0x620 mm/kasan/report.c:489
  kasan_report+0xd9/0x110 mm/kasan/report.c:602
  rht_key_hashfn include/linux/rhashtable.h:159 [inline]
  __rhashtable_lookup.constprop.0+0x426/0x550 include/linux/rhashtable.h:604
  rhashtable_lookup include/linux/rhashtable.h:646 [inline]
  rhashtable_lookup_fast include/linux/rhashtable.h:672 [inline]
  ila_lookup_wildcards net/ipv6/ila/ila_xlat.c:127 [inline]
  ila_xlat_addr net/ipv6/ila/ila_xlat.c:652 [inline]
  ila_nf_input+0x1ee/0x620 net/ipv6/ila/ila_xlat.c:185
  nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
  nf_hook_slow+0xbb/0x200 net/netfilter/core.c:626
  nf_hook.constprop.0+0x42e/0x750 include/linux/netfilter.h:269
  NF_HOOK include/linux/netfilter.h:312 [inline]
  ipv6_rcv+0xa4/0x680 net/ipv6/ip6_input.c:309
  __netif_receive_skb_one_core+0x12e/0x1e0 net/core/dev.c:5672
  __netif_receive_skb+0x1d/0x160 net/core/dev.c:5785
  process_backlog+0x443/0x15f0 net/core/dev.c:6117
  __napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:6883
  napi_poll net/core/dev.c:6952 [inline]
  net_rx_action+0xa94/0x1010 net/core/dev.c:7074
  handle_softirqs+0x213/0x8f0 kernel/softirq.c:561
  __do_softirq kernel/softirq.c:595 [inline]
  invoke_softirq kernel/softirq.c:435 [inline]
  __irq_exit_rcu+0x109/0x170 kernel/softirq.c:662
  irq_exit_rcu+0x9/0x30 kernel/softirq.c:678
  instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
  sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1049

CVSS

Versión: 3.1
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Puntuación base: 7.8

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.26%
Percentil entre todas las CVEs puntuadas: 16
Fecha de la puntuación: 5/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

ExplotaciónT1068 Exploitation for Privilege Escalationprivilege escalation85 %
Impacto principalT1499.004 Application or System Exploitationimpact75 %

Vulnerabilidad local (AV:L, PR:L) que causa use-after-free en kernel Linux mediante race condition en ILA, permitiendo DoS (crash) o ejecución de código con privilegios elevados.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Threat Intelligence Program Filter Network Traffic Execution Prevention Application Isolation and Sandboxing Exploit Protection Update Software

Tecnologías afectadas (1)

Linux — Linux Kernel

CWE

CWE-416
CWE-416

Referencias

JSON original (NVD)

Mostrar

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    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nila: serialize calls to nf_register_net_hooks()\n\nsyzbot found a race in ila_add_mapping() [1]\n\ncommit 031ae72825ce (\"ila: call nf_unregister_net_hooks() sooner\")\nattempted to fix a similar issue.\n\nLooking at the syzbot repro, we have concurrent ILA_CMD_ADD commands.\n\nAdd a mutex to make sure at most one thread is calling nf_register_net_hooks().\n\n[1]\n BUG: KASAN: slab-use-after-free in rht_key_hashfn include/linux/rhashtable.h:159 [inline]\n BUG: KASAN: slab-use-after-free in __rhashtable_lookup.constprop.0+0x426/0x550 include/linux/rhashtable.h:604\nRead of size 4 at addr ffff888028f40008 by task dhcpcd/5501\n\nCPU: 1 UID: 0 PID: 5501 Comm: dhcpcd Not tainted 6.13.0-rc4-syzkaller-00054-gd6ef8b40d075 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024\nCall Trace:\n <IRQ>\n  __dump_stack lib/dump_stack.c:94 [inline]\n  dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120\n  print_address_description mm/kasan/report.c:378 [inline]\n  print_report+0xc3/0x620 mm/kasan/report.c:489\n  kasan_report+0xd9/0x110 mm/kasan/report.c:602\n  rht_key_hashfn include/linux/rhashtable.h:159 [inline]\n  __rhashtable_lookup.constprop.0+0x426/0x550 include/linux/rhashtable.h:604\n  rhashtable_lookup include/linux/rhashtable.h:646 [inline]\n  rhashtable_lookup_fast include/linux/rhashtable.h:672 [inline]\n  ila_lookup_wildcards net/ipv6/ila/ila_xlat.c:127 [inline]\n  ila_xlat_addr net/ipv6/ila/ila_xlat.c:652 [inline]\n  ila_nf_input+0x1ee/0x620 net/ipv6/ila/ila_xlat.c:185\n  nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]\n  nf_hook_slow+0xbb/0x200 net/netfilter/core.c:626\n  nf_hook.constprop.0+0x42e/0x750 include/linux/netfilter.h:269\n  NF_HOOK include/linux/netfilter.h:312 [inline]\n  ipv6_rcv+0xa4/0x680 net/ipv6/ip6_input.c:309\n  __netif_receive_skb_one_core+0x12e/0x1e0 net/core/dev.c:5672\n  __netif_receive_skb+0x1d/0x160 net/core/dev.c:5785\n  process_backlog+0x443/0x15f0 net/core/dev.c:6117\n  __napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:6883\n  napi_poll net/core/dev.c:6952 [inline]\n  net_rx_action+0xa94/0x1010 net/core/dev.c:7074\n  handle_softirqs+0x213/0x8f0 kernel/softirq.c:561\n  __do_softirq kernel/softirq.c:595 [inline]\n  invoke_softirq kernel/softirq.c:435 [inline]\n  __irq_exit_rcu+0x109/0x170 kernel/softirq.c:662\n  irq_exit_rcu+0x9/0x30 kernel/softirq.c:678\n  instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]\n  sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1049"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ila: serializar llamadas a nf_register_net_hooks() syzbot encontró una carrera en ila_add_mapping() [1] la confirmación 031ae72825ce (\"ila: llamar a nf_unregister_net_hooks() antes\") intentó solucionar un problema similar. Al observar la reproducción de syzbot, tenemos comandos ILA_CMD_ADD simultáneos. Agregue un mutex para asegurarse de que, como máximo, un hilo esté llamando a nf_register_net_hooks(). [1] ERROR: KASAN: slab-use-after-free en rht_key_hashfn include/linux/rhashtable.h:159 [en línea] ERROR: KASAN: slab-use-after-free en __rhashtable_lookup.constprop.0+0x426/0x550 include/linux/rhashtable.h:604 Lectura de tamaño 4 en la dirección ffff888028f40008 por la tarea dhcpcd/5501 CPU: 1 UID: 0 PID: 5501 Comm: dhcpcd No contaminado 6.13.0-rc4-syzkaller-00054-gd6ef8b40d075 #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 13/09/2024 Seguimiento de llamadas:  __dump_stack lib/dump_stack.c:94 [en línea] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_address_description mm/kasan/report.c:378 [en línea] print_report+0xc3/0x620 mm/kasan/report.c:489 kasan_report+0xd9/0x110 mm/kasan/report.c:602 rht_key_hashfn include/linux/rhashtable.h:159 [en línea] __rhashtable_lookup.constprop.0+0x426/0x550 include/linux/rhashtable.h:604 rhashtable_lookup include/linux/rhashtable.h:646 [en línea] rhashtable_lookup_fast include/linux/rhashtable.h:672 [en línea] ila_lookup_wildcards net/ipv6/ila/ila_xlat.c:127 [en línea] ila_xlat_addr net/ipv6/ila/ila_xlat.c:652 [en línea] ila_nf_input+0x1ee/0x620 net/ipv6/ila/ila_xlat.c:185 nf_hook_entry_hookfn include/linux/netfilter.h:154 [en línea] nf_hook_slow+0xbb/0x200 net/netfilter/core.c:626 nf_hook.constprop.0+0x42e/0x750 include/linux/netfilter.h:269 NF_HOOK include/linux/netfilter.h:312 [en línea] ipv6_rcv+0xa4/0x680 net/ipv6/ip6_input.c:309 __netif_receive_skb_one_core+0x12e/0x1e0 net/core/dev.c:5672 __netif_receive_skb+0x1d/0x160 net/core/dev.c:5785 process_backlog+0x443/0x15f0 net/core/dev.c:6117 __napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:6883 napi_poll net/core/dev.c:6952 [en línea] net_rx_action+0xa94/0x1010 net/core/dev.c:7074 handle_softirqs+0x213/0x8f0 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [en línea] invoke_softirq kernel/softirq.c:435 [en línea] __irq_exit_rcu+0x109/0x170 kernel/softirq.c:662 irq_exit_rcu+0x9/0x30 kernel/softirq.c:678 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [en línea] sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1049"
    }
  ],
  "lastModified": "2026-06-17T08:14:10.770",
  "configurations": [
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