nvd-json-data-feeds/CVE-2024/CVE-2024-409xx/CVE-2024-40981.json

{
  "id": "CVE-2024-40981",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-07-12T13:15:19.627",
  "lastModified": "2024-09-09T18:16:52.780",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbatman-adv: bypass empty buckets in batadv_purge_orig_ref()\n\nMany syzbot reports are pointing to soft lockups in\nbatadv_purge_orig_ref() [1]\n\nRoot cause is unknown, but we can avoid spending too much\ntime there and perhaps get more interesting reports.\n\n[1]\n\nwatchdog: BUG: soft lockup - CPU#0 stuck for 27s! [kworker/u4:6:621]\nModules linked in:\nirq event stamp: 6182794\n hardirqs last  enabled at (6182793): [<ffff8000801dae10>] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386\n hardirqs last disabled at (6182794): [<ffff80008ad66a78>] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline]\n hardirqs last disabled at (6182794): [<ffff80008ad66a78>] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common.c:551\n softirqs last  enabled at (6182792): [<ffff80008aab71c4>] spin_unlock_bh include/linux/spinlock.h:396 [inline]\n softirqs last  enabled at (6182792): [<ffff80008aab71c4>] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287\n softirqs last disabled at (6182790): [<ffff80008aab61dc>] spin_lock_bh include/linux/spinlock.h:356 [inline]\n softirqs last disabled at (6182790): [<ffff80008aab61dc>] batadv_purge_orig_ref+0x164/0x1228 net/batman-adv/originator.c:1271\nCPU: 0 PID: 621 Comm: kworker/u4:6 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024\nWorkqueue: bat_events batadv_purge_orig\npstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n pc : should_resched arch/arm64/include/asm/preempt.h:79 [inline]\n pc : __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388\n lr : __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386\nsp : ffff800099007970\nx29: ffff800099007980 x28: 1fffe00018fce1bd x27: dfff800000000000\nx26: ffff0000d2620008 x25: ffff0000c7e70de8 x24: 0000000000000001\nx23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4\nx20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: 1fffe0001a817bb0\nx17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001\nx14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000003\nx11: 0000000000000000 x10: 0000000000ff0100 x9 : 0000000000000000\nx8 : 00000000005e5789 x7 : ffff80008aab61dc x6 : 0000000000000000\nx5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000\nx2 : 0000000000000006 x1 : 0000000000000080 x0 : ffff800125414000\nCall trace:\n  __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [inline]\n  arch_local_irq_enable arch/arm64/include/asm/irqflags.h:49 [inline]\n  __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:386\n  __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]\n  _raw_spin_unlock_bh+0x3c/0x4c kernel/locking/spinlock.c:210\n  spin_unlock_bh include/linux/spinlock.h:396 [inline]\n  batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287\n  batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300\n  process_one_work+0x694/0x1204 kernel/workqueue.c:2633\n  process_scheduled_works kernel/workqueue.c:2706 [inline]\n  worker_thread+0x938/0xef4 kernel/workqueue.c:2787\n  kthread+0x288/0x310 kernel/kthread.c:388\n  ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860\nSending NMI from CPU 0 to CPUs 1:\nNMI backtrace for cpu 1\nCPU: 1 PID: 0 Comm: swapper/1 Not tainted 6.8.0-rc7-syzkaller-g707081b61156 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/29/2024\npstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n pc : arch_local_irq_enable+0x8/0xc arch/arm64/include/asm/irqflags.h:51\n lr : default_idle_call+0xf8/0x128 kernel/sched/idle.c:103\nsp : ffff800093a17d30\nx29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4\nx26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002\nx23: 1ffff00011d93a74 x22: ffff80008ec9d3a0 x21: 0000000000000000\nx20: ffff0000c19dbc00 x19: ffff8000802d0fd8 x18: 1fffe00036804396\nx17: ffff80008ec9d000 x16: ffff8000802d089c x15: 0000000000000001\n---truncated---"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: batman-adv: evita dep\u00f3sitos vac\u00edos en batadv_purge_orig_ref() Muchos informes de syzbot apuntan a bloqueos suaves en batadv_purge_orig_ref() [1] Se desconoce la causa ra\u00edz, pero podemos evitar gastar demasiado pasar tiempo all\u00ed y tal vez obtener informes m\u00e1s interesantes. [1] perro guardi\u00e1n: ERROR: bloqueo suave - \u00a1CPU#0 bloqueada durante 27 segundos! [kworker/u4:6:621] M\u00f3dulos vinculados en: sello de evento irq: 6182794 hardirqs habilitados por \u00faltima vez en (6182793): [] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386 hardirqs deshabilitados por \u00faltima vez en (6182794) : [] __el1_irq arch/arm64/kernel/entry-common.c:533 [inline] hardirqs deshabilitado por \u00faltima vez en (6182794): [] el1_interrupt+0x24/0x68 arch/arm64/kernel/entry-common .c:551 softirqs habilitado por \u00faltima vez en (6182792): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs habilitado por \u00faltima vez en (6182792): [] batadv_purge_orig_ref+0x114c/0x122 8 netos/ batman-adv/originator.c:1287 softirqs deshabilitados por \u00faltima vez en (6182790): [] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs deshabilitados por \u00faltima vez en (6182790): [] batadv_purge_orig_ref+ 0x164/0x1228 net/batman-adv/originator.c:1271 CPU: 0 PID: 621 Comm: kworker/u4:6 No contaminado 6.8.0-rc7-syzkaller-g707081b61156 #0 Nombre de hardware: Google Google Compute Engine/Google Compute Motor, BIOS Google 29/02/2024 Cola de trabajo: bat_events batadv_purge_orig pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc: deber\u00eda_resched arch/arm64/include/asm/preempt.h:79 [en l\u00ednea] pc: __local_bh_enable_ip+0x228/0x44c kernel/softirq.c:388 lr: __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:386 sp: ffff800099007970 x29: ffff800099007980 x28: 018fce1bd x27: dfff800000000000 x26: ffff0000d2620008 x25: ffff0000c7e70de8 x24 : 0000000000000001 x23: 1fffe00018e57781 x22: dfff800000000000 x21: ffff80008aab71c4 x20: ffff0001b40136c0 x19: ffff0000c72bbc08 x18: a817bb0 x17: ffff800125414000 x16: ffff80008032116c x15: 0000000000000001 x14: 1fffe0001ee9d610 x13: 0000000000000000 x12: 0000000000000000 3 x11: 0000000000000000 x10: 0000000000ff0100 x9: 0000000000000000 x8: 00000000005e5789 x7: ffff80008aab61dc x6: 0000000000000000 x5: 0000000000000000 x4: 0000000000000001 x3: 00000000000000000 x2: 0000000000000006 x1: 00000000000080 x0: ffff800125414000 Rastreo de llamadas: __daif_local_irq_enable arch/arm64/include/asm/irqflags.h:27 [en l\u00ednea] arch_local_irq_enable arch/arm64/include /asm/irqflags.h:49 [en l\u00ednea] __local_bh_enable_ip+0x228/0x44c kernel/softirq.c: 386 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h: 167 [en l\u00ednea] 210 spin_unlock_bh include/linux/spinlock.h:396 [en l\u00ednea] batadv_purge_orig_ref+0x114c/0x1228 net/batman-adv/originator.c:1287 batadv_purge_orig+0x20/0x70 net/batman-adv/originator.c:1300 Process_one_work+0x694/0x120 4 kernel/workqueue.c:2633 Process_scheduled_works kernel/workqueue.c:2706 [en l\u00ednea] trabajador_thread+0x938/0xef4 kernel/workqueue.c:2787 kthread+0x288/0x310 kernel/kthread.c:388 ret_from_fork+0x10/0x20 arch/arm64 /kernel/entry.S:860 Env\u00edo de NMI desde la CPU 0 a las CPU 1: rastreo de NMI para la CPU 1 CPU: 1 PID: 0 Comm: swapper/1 No contaminado 6.8.0-rc7-syzkaller-g707081b61156 #0 Nombre de hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 29/02/2024 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc: arch_local_irq_enable+0x8/0xc arch/arm64/include/asm /irqflags.h:51 lr: default_idle_call+0xf8/0x128 kernel/sched/idle.c:103 sp: ffff800093a17d30 x29: ffff800093a17d30 x28: dfff800000000000 x27: 1ffff00012742fb4 x26: ffff80008ec9d000 x25: 0000000000000000 x24: 0000000000000002 x23: 1ffff00011d93a74 x22:---truncado---"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-667"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
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