fkie_cve-2023-53075
Vulnerability from fkie_nvd
Published
2025-05-02 16:15
Modified
2025-11-12 20:49
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: ftrace: Fix invalid address access in lookup_rec() when index is 0 KASAN reported follow problem: BUG: KASAN: use-after-free in lookup_rec Read of size 8 at addr ffff000199270ff0 by task modprobe CPU: 2 Comm: modprobe Call trace: kasan_report __asan_load8 lookup_rec ftrace_location arch_check_ftrace_location check_kprobe_address_safe register_kprobe When checking pg->records[pg->index - 1].ip in lookup_rec(), it can get a pg which is newly added to ftrace_pages_start in ftrace_process_locs(). Before the first pg->index++, index is 0 and accessing pg->records[-1].ip will cause this problem. Don't check the ip when pg->index is 0.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2a0d71fabfeb349216d33f001a6421b1768bd3a9Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2de28e5ce34b22b73b833a21e2c45ae3aade3964Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4f84f31f63416b0f02fc146ffdc4ab32723eb7e8Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/7569ee04b0e3b32df79f64db3a7138573edad9bcPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/83c3b2f4e7c61367c7b24551f4c6eb94bbdda283Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ac58b88ccbbb8e9fb83e137cee04a856b1ea6635Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ee92fa443358f4fc0017c1d0d325c27b37802504Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f1bd8b7fd890d87d0dc4dedc6287ea34dd07c0b4Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.3
linux linux_kernel 6.3


To clipboard 

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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Fix invalid address access in lookup_rec() when index is 0\n\nKASAN reported follow problem:\n\n BUG: KASAN: use-after-free in lookup_rec\n Read of size 8 at addr ffff000199270ff0 by task modprobe\n CPU: 2 Comm: modprobe\n Call trace:\n  kasan_report\n  __asan_load8\n  lookup_rec\n  ftrace_location\n  arch_check_ftrace_location\n  check_kprobe_address_safe\n  register_kprobe\n\nWhen checking pg-\u003erecords[pg-\u003eindex - 1].ip in lookup_rec(), it can get a\npg which is newly added to ftrace_pages_start in ftrace_process_locs().\nBefore the first pg-\u003eindex++, index is 0 and accessing pg-\u003erecords[-1].ip\nwill cause this problem.\n\nDon\u0027t check the ip when pg-\u003eindex is 0."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ftrace: Se corrige el acceso a direcciones no v\u00e1lidas en lookup_rec() cuando el \u00edndice es 0 KASAN inform\u00f3 el siguiente problema: BUG: KASAN: use-after-free en lookup_rec Lectura de tama\u00f1o 8 en la direcci\u00f3n ffff000199270ff0 por la tarea modprobe CPU: 2 Comm: modprobe Rastreo de llamadas: kasan_report __asan_load8 lookup_rec ftrace_location arch_check_ftrace_location check_kprobe_address_safe register_kprobe Al verificar pg-\u0026gt;records[pg-\u0026gt;index - 1].ip en lookup_rec(), puede obtener un pg que se agreg\u00f3 recientemente a ftrace_pages_start en ftrace_process_locs(). Antes del primer pg-\u0026gt;index++, el \u00edndice es 0 y acceder a pg-\u0026gt;records[-1].ip causar\u00e1 este problema. No verifique la IP cuando pg-\u0026gt;index sea 0."
    }
  ],
  "id": "CVE-2023-53075",
  "lastModified": "2025-11-12T20:49:42.893",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2025-05-02T16:15:26.510",
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  "vulnStatus": "Analyzed",
  "weaknesses": [
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          "lang": "en",
          "value": "CWE-416"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
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}


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