fkie_cve-2022-49830
Vulnerability from fkie_nvd
Published
2025-05-01 15:16
Modified
2025-11-10 19:58
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/drv: Fix potential memory leak in drm_dev_init() drm_dev_init() will add drm_dev_init_release() as a callback. When drmm_add_action() failed, the release function won't be added. As the result, the ref cnt added by device_get() in drm_dev_init() won't be put by drm_dev_init_release(), which leads to the memleak. Use drmm_add_action_or_reset() instead of drmm_add_action() to prevent memleak. unreferenced object 0xffff88810bc0c800 (size 2048): comm "modprobe", pid 8322, jiffies 4305809845 (age 15.292s) hex dump (first 32 bytes): e8 cc c0 0b 81 88 ff ff ff ff ff ff 00 00 00 00 ................ 20 24 3c 0c 81 88 ff ff 18 c8 c0 0b 81 88 ff ff $<............. backtrace: [<000000007251f72d>] __kmalloc+0x4b/0x1c0 [<0000000045f21f26>] platform_device_alloc+0x2d/0xe0 [<000000004452a479>] platform_device_register_full+0x24/0x1c0 [<0000000089f4ea61>] 0xffffffffa0736051 [<00000000235b2441>] do_one_initcall+0x7a/0x380 [<0000000001a4a177>] do_init_module+0x5c/0x230 [<000000002bf8a8e2>] load_module+0x227d/0x2420 [<00000000637d6d0a>] __do_sys_finit_module+0xd5/0x140 [<00000000c99fc324>] do_syscall_64+0x3f/0x90 [<000000004d85aa77>] entry_SYSCALL_64_after_hwframe+0x63/0xcd
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/07e56de8766fe5be67252596244b84ac0ec0de91Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/bd8d1335e6e70a396094ef98913b513140c0b86bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c47a823ea186263ab69cfb665327b7f72cb5e779Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/ff963634f7b2e0dc011349abb3fb81a0d074f443Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1
linux linux_kernel 6.1


To clipboard 

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  "configurations": [
    {
      "nodes": [
        {
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/drv: Fix potential memory leak in drm_dev_init()\n\ndrm_dev_init() will add drm_dev_init_release() as a callback. When\ndrmm_add_action() failed, the release function won\u0027t be added. As the\nresult, the ref cnt added by device_get() in drm_dev_init() won\u0027t be put\nby drm_dev_init_release(), which leads to the memleak. Use\ndrmm_add_action_or_reset() instead of drmm_add_action() to prevent\nmemleak.\n\nunreferenced object 0xffff88810bc0c800 (size 2048):\n  comm \"modprobe\", pid 8322, jiffies 4305809845 (age 15.292s)\n  hex dump (first 32 bytes):\n    e8 cc c0 0b 81 88 ff ff ff ff ff ff 00 00 00 00  ................\n    20 24 3c 0c 81 88 ff ff 18 c8 c0 0b 81 88 ff ff   $\u003c.............\n  backtrace:\n    [\u003c000000007251f72d\u003e] __kmalloc+0x4b/0x1c0\n    [\u003c0000000045f21f26\u003e] platform_device_alloc+0x2d/0xe0\n    [\u003c000000004452a479\u003e] platform_device_register_full+0x24/0x1c0\n    [\u003c0000000089f4ea61\u003e] 0xffffffffa0736051\n    [\u003c00000000235b2441\u003e] do_one_initcall+0x7a/0x380\n    [\u003c0000000001a4a177\u003e] do_init_module+0x5c/0x230\n    [\u003c000000002bf8a8e2\u003e] load_module+0x227d/0x2420\n    [\u003c00000000637d6d0a\u003e] __do_sys_finit_module+0xd5/0x140\n    [\u003c00000000c99fc324\u003e] do_syscall_64+0x3f/0x90\n    [\u003c000000004d85aa77\u003e] entry_SYSCALL_64_after_hwframe+0x63/0xcd"
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/drv: Se solucion\u00f3 una posible fuga de memoria en drm_dev_init(). drm_dev_init() a\u00f1adir\u00e1 drm_dev_init_release() como devoluci\u00f3n de llamada. Si drmm_add_action() falla, la funci\u00f3n de liberaci\u00f3n no se a\u00f1adir\u00e1. Como resultado, el valor de referencia a\u00f1adido por device_get() en drm_dev_init() no se incluir\u00e1 en drm_dev_init_release(), lo que provoca la fuga de memoria. Utilice drmm_add_action_or_reset() en lugar de drmm_add_action() para evitar la fuga de memoria. objeto sin referencia 0xffff88810bc0c800 (tama\u00f1o 2048): comm \"modprobe\", pid 8322, jiffies 4305809845 (antig\u00fcedad 15.292s) volcado hexadecimal (primeros 32 bytes): e8 cc c0 0b 81 88 ff ff ff ff ff ff ff 00 00 00 00 ................ 20 24 3c 0c 81 88 ff ff 18 c8 c0 0b 81 88 ff ff $\u0026lt;............. backtrace:  [\u0026lt;000000007251f72d\u0026gt;] __kmalloc+0x4b/0x1c0 [\u0026lt;0000000045f21f26\u0026gt;] platform_device_alloc+0x2d/0xe0 [\u0026lt;000000004452a479\u0026gt;] platform_device_register_full+0x24/0x1c0 [\u0026lt;0000000089f4ea61\u0026gt;] 0xffffffffa0736051 [\u0026lt;00000000235b2441\u0026gt;] do_one_initcall+0x7a/0x380 [\u0026lt;0000000001a4a177\u0026gt;] do_init_module+0x5c/0x230 [\u0026lt;000000002bf8a8e2\u0026gt;] load_module+0x227d/0x2420 [\u0026lt;00000000637d6d0a\u0026gt;] __do_sys_finit_module+0xd5/0x140 [\u0026lt;00000000c99fc324\u0026gt;] do_syscall_64+0x3f/0x90 [\u0026lt;000000004d85aa77\u0026gt;] entry_SYSCALL_64_after_hwframe+0x63/0xcd "
    }
  ],
  "id": "CVE-2022-49830",
  "lastModified": "2025-11-10T19:58:04.560",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2025-05-01T15:16:06.470",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-401"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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