nvd-json-data-feeds/CVE-2024/CVE-2024-502xx/CVE-2024-50261.json

{
  "id": "CVE-2024-50261",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-11-09T11:15:11.610",
  "lastModified": "2024-12-11T15:15:14.133",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmacsec: Fix use-after-free while sending the offloading packet\n\nKASAN reports the following UAF. The metadata_dst, which is used to\nstore the SCI value for macsec offload, is already freed by\nmetadata_dst_free() in macsec_free_netdev(), while driver still use it\nfor sending the packet.\n\nTo fix this issue, dst_release() is used instead to release\nmetadata_dst. So it is not freed instantly in macsec_free_netdev() if\nstill referenced by skb.\n\n BUG: KASAN: slab-use-after-free in mlx5e_xmit+0x1e8f/0x4190 [mlx5_core]\n Read of size 2 at addr ffff88813e42e038 by task kworker/7:2/714\n [...]\n Workqueue: mld mld_ifc_work\n Call Trace:\n  <TASK>\n  dump_stack_lvl+0x51/0x60\n  print_report+0xc1/0x600\n  kasan_report+0xab/0xe0\n  mlx5e_xmit+0x1e8f/0x4190 [mlx5_core]\n  dev_hard_start_xmit+0x120/0x530\n  sch_direct_xmit+0x149/0x11e0\n  __qdisc_run+0x3ad/0x1730\n  __dev_queue_xmit+0x1196/0x2ed0\n  vlan_dev_hard_start_xmit+0x32e/0x510 [8021q]\n  dev_hard_start_xmit+0x120/0x530\n  __dev_queue_xmit+0x14a7/0x2ed0\n  macsec_start_xmit+0x13e9/0x2340\n  dev_hard_start_xmit+0x120/0x530\n  __dev_queue_xmit+0x14a7/0x2ed0\n  ip6_finish_output2+0x923/0x1a70\n  ip6_finish_output+0x2d7/0x970\n  ip6_output+0x1ce/0x3a0\n  NF_HOOK.constprop.0+0x15f/0x190\n  mld_sendpack+0x59a/0xbd0\n  mld_ifc_work+0x48a/0xa80\n  process_one_work+0x5aa/0xe50\n  worker_thread+0x79c/0x1290\n  kthread+0x28f/0x350\n  ret_from_fork+0x2d/0x70\n  ret_from_fork_asm+0x11/0x20\n  </TASK>\n\n Allocated by task 3922:\n  kasan_save_stack+0x20/0x40\n  kasan_save_track+0x10/0x30\n  __kasan_kmalloc+0x77/0x90\n  __kmalloc_noprof+0x188/0x400\n  metadata_dst_alloc+0x1f/0x4e0\n  macsec_newlink+0x914/0x1410\n  __rtnl_newlink+0xe08/0x15b0\n  rtnl_newlink+0x5f/0x90\n  rtnetlink_rcv_msg+0x667/0xa80\n  netlink_rcv_skb+0x12c/0x360\n  netlink_unicast+0x551/0x770\n  netlink_sendmsg+0x72d/0xbd0\n  __sock_sendmsg+0xc5/0x190\n  ____sys_sendmsg+0x52e/0x6a0\n  ___sys_sendmsg+0xeb/0x170\n  __sys_sendmsg+0xb5/0x140\n  do_syscall_64+0x4c/0x100\n  entry_SYSCALL_64_after_hwframe+0x4b/0x53\n\n Freed by task 4011:\n  kasan_save_stack+0x20/0x40\n  kasan_save_track+0x10/0x30\n  kasan_save_free_info+0x37/0x50\n  poison_slab_object+0x10c/0x190\n  __kasan_slab_free+0x11/0x30\n  kfree+0xe0/0x290\n  macsec_free_netdev+0x3f/0x140\n  netdev_run_todo+0x450/0xc70\n  rtnetlink_rcv_msg+0x66f/0xa80\n  netlink_rcv_skb+0x12c/0x360\n  netlink_unicast+0x551/0x770\n  netlink_sendmsg+0x72d/0xbd0\n  __sock_sendmsg+0xc5/0x190\n  ____sys_sendmsg+0x52e/0x6a0\n  ___sys_sendmsg+0xeb/0x170\n  __sys_sendmsg+0xb5/0x140\n  do_syscall_64+0x4c/0x100\n  entry_SYSCALL_64_after_hwframe+0x4b/0x53"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: macsec: Se corrige el use-after-free al enviar el paquete de descarga KASAN informa el siguiente UAF. El metadata_dst, que se utiliza para almacenar el valor SCI para la descarga de macsec, ya est\u00e1 liberado por metadata_dst_free() en macsec_free_netdev(), mientras que el controlador a\u00fan lo usa para enviar el paquete. Para solucionar este problema, se utiliza dst_release() en su lugar para liberar metadata_dst. Por lo tanto, no se libera instant\u00e1neamente en macsec_free_netdev() si a\u00fan se hace referencia a \u00e9l mediante skb. ERROR: KASAN: uso de losa despu\u00e9s de la liberaci\u00f3n en mlx5e_xmit+0x1e8f/0x4190 [mlx5_core] Lectura de tama\u00f1o 2 en la direcci\u00f3n ffff88813e42e038 por la tarea kworker/7:2/714 [...] Cola de trabajo: mld mld_ifc_work Seguimiento de llamadas:  dump_stack_lvl+0x51/0x60 print_report+0xc1/0x600 kasan_report+0xab/0xe0 mlx5e_xmit+0x1e8f/0x4190 [mlx5_core] dev_hard_start_xmit+0x120/0x530 sch_direct_xmit+0x149/0x11e0 __qdisc_run+0x3ad/0x1730 __dev_queue_xmit+0x1196/0x2ed0 vlan_dev_hard_start_xmit+0x32e/0x510 [8021q] dev_hard_start_xmit+0x120/0x530 __dev_queue_xmit+0x14a7/0x2ed0 macsec_start_xmit+0x13e9/0x2340 dev_hard_start_xmit+0x120/0x530 __dev_queue_xmit+0x14a7/0x2ed0 ip6_finish_output2+0x923/0x1a70 ip6_finish_output+0x2d7/0x970 ip6_output+0x1ce/0x3a0 Asignado por la tarea 3922: kasan_save_stack+0x20/0x40 kasan_save_track+0x10/0x30 __kasan_kmalloc+0x77/0x90 __kmalloc_noprof+0x188/0x400 metadatos_dst_alloc+0x1f/0x4e0 macsec_newlink+0x914/0x1410 __rtnl_newlink+0xe08/0x15b0 rtnl_newlink+0x5f/0x90 rtnetlink_rcv_msg+0x667/0xa80 netlink_rcv_skb+0x12c/0x360 netlink_unicast+0x551/0x770 netlink_sendmsg+0x72d/0xbd0 __sock_sendmsg+0xc5/0x190 ____sys_sendmsg+0x52e/0x6a0 ___sys_sendmsg+0xeb/0x170 __sys_sendmsg+0xb5/0x140 do_syscall_64+0x4c/0x100 entry_SYSCALL_64_after_hwframe+0x4b/0x53 Liberado por la tarea 4011: kasan_save_stack+0x20/0x40 kasan_save_track+0x10/0x30 kasan_save_free_info+0x37/0x50 poison_slab_object+0x10c/0x190 __kasan_slab_free+0x11/0x30 kfree+0xe0/0x290 macsec_free_netdev+0x3f/0x140 netdev_run_todo+0x450/0xc70 rtnetlink_rcv_msg+0x66f/0xa80 netlink_rcv_skb+0x12c/0x360 netlink_unicast+0x551/0x770 netlink_sendmsg+0x72d/0xbd0 __sock_sendmsg+0xc5/0x190 ____sys_sendmsg+0x52e/0x6a0 ___sys_sendmsg+0xeb/0x170 __sys_sendmsg+0xb5/0x140 hacer_syscall_64+0x4c/0x100 entrada_SYSCALL_64_despu\u00e9s_hwframe+0x4b/0x53"
    }
  ],
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          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
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          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
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  "configurations": [
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