nvd-json-data-feeds/CVE-2024/CVE-2024-385xx/CVE-2024-38588.json

{
  "id": "CVE-2024-38588",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2024-06-19T14:15:18.907",
  "lastModified": "2024-09-19T13:19:13.213",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Fix possible use-after-free issue in ftrace_location()\n\nKASAN reports a bug:\n\n  BUG: KASAN: use-after-free in ftrace_location+0x90/0x120\n  Read of size 8 at addr ffff888141d40010 by task insmod/424\n  CPU: 8 PID: 424 Comm: insmod Tainted: G        W          6.9.0-rc2+\n  [...]\n  Call Trace:\n   <TASK>\n   dump_stack_lvl+0x68/0xa0\n   print_report+0xcf/0x610\n   kasan_report+0xb5/0xe0\n   ftrace_location+0x90/0x120\n   register_kprobe+0x14b/0xa40\n   kprobe_init+0x2d/0xff0 [kprobe_example]\n   do_one_initcall+0x8f/0x2d0\n   do_init_module+0x13a/0x3c0\n   load_module+0x3082/0x33d0\n   init_module_from_file+0xd2/0x130\n   __x64_sys_finit_module+0x306/0x440\n   do_syscall_64+0x68/0x140\n   entry_SYSCALL_64_after_hwframe+0x71/0x79\n\nThe root cause is that, in lookup_rec(), ftrace record of some address\nis being searched in ftrace pages of some module, but those ftrace pages\nat the same time is being freed in ftrace_release_mod() as the\ncorresponding module is being deleted:\n\n           CPU1                       |      CPU2\n  register_kprobes() {                | delete_module() {\n    check_kprobe_address_safe() {     |\n      arch_check_ftrace_location() {  |\n        ftrace_location() {           |\n          lookup_rec() // USE!        |   ftrace_release_mod() // Free!\n\nTo fix this issue:\n  1. Hold rcu lock as accessing ftrace pages in ftrace_location_range();\n  2. Use ftrace_location_range() instead of lookup_rec() in\n     ftrace_location();\n  3. Call synchronize_rcu() before freeing any ftrace pages both in\n     ftrace_process_locs()/ftrace_release_mod()/ftrace_free_mem()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ftrace: Solucionar posible problema de use-after-free en ftrace_location() KASAN informa un error: ERROR: KASAN: use-after-free en ftrace_location+0x90/0x120 Lectura de tama\u00f1o 8 en addr ffff888141d40010 por tarea insmod/424 CPU: 8 PID: 424 Comm: insmod Tainted: GW 6.9.0-rc2+ [...] Rastreo de llamadas:  dump_stack_lvl+0x68/0xa0 print_report+0xcf/0x610 kasan_report+0xb5/ 0xe0 ftrace_location+0x90/0x120 Register_kprobe+0x14b/0xa40 kprobe_init+0x2d/0xff0 [kprobe_example] do_one_initcall+0x8f/0x2d0 do_init_module+0x13a/0x3c0 load_module+0x3082/0x33d0 init_module_from _file+0xd2/0x130 __x64_sys_finit_module+0x306/0x440 do_syscall_64+0x68/0x140 entrada_SYSCALL_64_after_hwframe +0x71/0x79 La causa principal es que, en lookup_rec(), el registro ftrace de alguna direcci\u00f3n se busca en las p\u00e1ginas ftrace de alg\u00fan m\u00f3dulo, pero esas p\u00e1ginas ftrace al mismo tiempo se liberan en ftrace_release_mod() como lo est\u00e1 el m\u00f3dulo correspondiente. siendo eliminado: CPU1 | CPU2 registro_kprobes() { | eliminar_m\u00f3dulo() { check_kprobe_address_safe() { | arch_check_ftrace_location() { | ftrace_ubicaci\u00f3n() { | lookup_rec() // \u00a1UTILIZAR! | ftrace_release_mod() // \u00a1Gratis! Para solucionar este problema: 1. Mantenga presionado rcu lock mientras accede a las p\u00e1ginas de ftrace en ftrace_location_range(); 2. Utilice ftrace_location_range() en lugar de lookup_rec() en ftrace_location(); 3. Llame a sincronizar_rcu() antes de liberar cualquier p\u00e1gina ftrace tanto en ftrace_process_locs()/ftrace_release_mod()/ftrace_free_mem()."
    }
  ],
  "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:H/I:H/A:H",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-416"
        }
      ]
    }
  ],
  "configurations": [
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          "negate": false,
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      "url": "https://git.kernel.org/stable/c/31310e373f4c8c74e029d4326b283e757edabc0b",
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