CVE-2022-49468 (GCVE-0-2022-49468)
Vulnerability from cvelistv5
Published
2025-02-26 02:13
Modified
2025-05-04 08:38
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: thermal/core: Fix memory leak in __thermal_cooling_device_register() I got memory leak as follows when doing fault injection test: unreferenced object 0xffff888010080000 (size 264312): comm "182", pid 102533, jiffies 4296434960 (age 10.100s) hex dump (first 32 bytes): 00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00 .....N.......... ff ff ff ff ff ff ff ff 40 7f 1f b9 ff ff ff ff ........@....... backtrace: [<0000000038b2f4fc>] kmalloc_order_trace+0x1d/0x110 mm/slab_common.c:969 [<00000000ebcb8da5>] __kmalloc+0x373/0x420 include/linux/slab.h:510 [<0000000084137f13>] thermal_cooling_device_setup_sysfs+0x15d/0x2d0 include/linux/slab.h:586 [<00000000352b8755>] __thermal_cooling_device_register+0x332/0xa60 drivers/thermal/thermal_core.c:927 [<00000000fb9f331b>] devm_thermal_of_cooling_device_register+0x6b/0xf0 drivers/thermal/thermal_core.c:1041 [<000000009b8012d2>] max6650_probe.cold+0x557/0x6aa drivers/hwmon/max6650.c:211 [<00000000da0b7e04>] i2c_device_probe+0x472/0xac0 drivers/i2c/i2c-core-base.c:561 If device_register() fails, thermal_cooling_device_destroy_sysfs() need be called to free the memory allocated in thermal_cooling_device_setup_sysfs().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/18530bedd221160823f63ccc20dd55c7a03edbcfPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/21ccc58b671aea924f2481cf5c1cf0ebbfd3552dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3802171f0b5b8b831f4ade5c827547cb323a5bb2Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/98a160e898c0f4a979af9de3ab48b4b1d42d1dbbPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9abdf0c0184230f0cb5c6685aabf33dda89aa9fbPatch
Impacted products
Vendor Product Version
Linux Linux Version: 8ea229511e06f9635ecc338dcbe0db41a73623f0
Version: 8ea229511e06f9635ecc338dcbe0db41a73623f0
Version: 8ea229511e06f9635ecc338dcbe0db41a73623f0
Version: 8ea229511e06f9635ecc338dcbe0db41a73623f0
Version: 8ea229511e06f9635ecc338dcbe0db41a73623f0
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   Linux Linux Version: 4.17
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{
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          "product": "Linux",
          "programFiles": [
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      "cpeApplicability": [
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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nthermal/core: Fix memory leak in __thermal_cooling_device_register()\n\nI got memory leak as follows when doing fault injection test:\n\nunreferenced object 0xffff888010080000 (size 264312):\n  comm \"182\", pid 102533, jiffies 4296434960 (age 10.100s)\n  hex dump (first 32 bytes):\n    00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00  .....N..........\n    ff ff ff ff ff ff ff ff 40 7f 1f b9 ff ff ff ff  ........@.......\n  backtrace:\n    [\u003c0000000038b2f4fc\u003e] kmalloc_order_trace+0x1d/0x110 mm/slab_common.c:969\n    [\u003c00000000ebcb8da5\u003e] __kmalloc+0x373/0x420 include/linux/slab.h:510\n    [\u003c0000000084137f13\u003e] thermal_cooling_device_setup_sysfs+0x15d/0x2d0 include/linux/slab.h:586\n    [\u003c00000000352b8755\u003e] __thermal_cooling_device_register+0x332/0xa60 drivers/thermal/thermal_core.c:927\n    [\u003c00000000fb9f331b\u003e] devm_thermal_of_cooling_device_register+0x6b/0xf0 drivers/thermal/thermal_core.c:1041\n    [\u003c000000009b8012d2\u003e] max6650_probe.cold+0x557/0x6aa drivers/hwmon/max6650.c:211\n    [\u003c00000000da0b7e04\u003e] i2c_device_probe+0x472/0xac0 drivers/i2c/i2c-core-base.c:561\n\nIf device_register() fails, thermal_cooling_device_destroy_sysfs() need be called\nto free the memory allocated in thermal_cooling_device_setup_sysfs()."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T08:38:23.159Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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        {
          "url": "https://git.kernel.org/stable/c/98a160e898c0f4a979af9de3ab48b4b1d42d1dbb"
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      ],
      "title": "thermal/core: Fix memory leak in __thermal_cooling_device_register()",
      "x_generator": {
        "engine": "bippy-1.2.0"
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    "assignerShortName": "Linux",
    "cveId": "CVE-2022-49468",
    "datePublished": "2025-02-26T02:13:12.713Z",
    "dateReserved": "2025-02-26T02:08:31.578Z",
    "dateUpdated": "2025-05-04T08:38:23.159Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-49468\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-02-26T07:01:23.063\",\"lastModified\":\"2025-03-17T16:09:09.383\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nthermal/core: Fix memory leak in __thermal_cooling_device_register()\\n\\nI got memory leak as follows when doing fault injection test:\\n\\nunreferenced object 0xffff888010080000 (size 264312):\\n  comm \\\"182\\\", pid 102533, jiffies 4296434960 (age 10.100s)\\n  hex dump (first 32 bytes):\\n    00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00  .....N..........\\n    ff ff ff ff ff ff ff ff 40 7f 1f b9 ff ff ff ff  ........@.......\\n  backtrace:\\n    [\u003c0000000038b2f4fc\u003e] kmalloc_order_trace+0x1d/0x110 mm/slab_common.c:969\\n    [\u003c00000000ebcb8da5\u003e] __kmalloc+0x373/0x420 include/linux/slab.h:510\\n    [\u003c0000000084137f13\u003e] thermal_cooling_device_setup_sysfs+0x15d/0x2d0 include/linux/slab.h:586\\n    [\u003c00000000352b8755\u003e] __thermal_cooling_device_register+0x332/0xa60 drivers/thermal/thermal_core.c:927\\n    [\u003c00000000fb9f331b\u003e] devm_thermal_of_cooling_device_register+0x6b/0xf0 drivers/thermal/thermal_core.c:1041\\n    [\u003c000000009b8012d2\u003e] max6650_probe.cold+0x557/0x6aa drivers/hwmon/max6650.c:211\\n    [\u003c00000000da0b7e04\u003e] i2c_device_probe+0x472/0xac0 drivers/i2c/i2c-core-base.c:561\\n\\nIf device_register() fails, thermal_cooling_device_destroy_sysfs() need be called\\nto free the memory allocated in thermal_cooling_device_setup_sysfs().\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: thermal/core: Fix memory leak in __thermal_cooling_device_register() Obtuve una p\u00e9rdida de memoria de la siguiente manera al realizar la prueba de inyecci\u00f3n de fallas: objeto sin referencia 0xffff888010080000 (size 264312): comm \\\"182\\\", pid 102533, jiffies 4296434960 (age 10.100s) hex dump (first 32 bytes): 00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00 .....N.......... ff ff ff ff ff ff ff ff 40 7f 1f b9 ff ff ff ff ........@....... backtrace: [\u0026lt;0000000038b2f4fc\u0026gt;] kmalloc_order_trace+0x1d/0x110 mm/slab_common.c:969 [\u0026lt;00000000ebcb8da5\u0026gt;] __kmalloc+0x373/0x420 include/linux/slab.h:510 [\u0026lt;0000000084137f13\u0026gt;] thermal_cooling_device_setup_sysfs+0x15d/0x2d0 include/linux/slab.h:586 [\u0026lt;00000000352b8755\u0026gt;] __thermal_cooling_device_register+0x332/0xa60 drivers/thermal/thermal_core.c:927 [\u0026lt;00000000fb9f331b\u0026gt;] devm_thermal_of_cooling_device_register+0x6b/0xf0 drivers/thermal/thermal_core.c:1041 [\u0026lt;000000009b8012d2\u0026gt;] max6650_probe.cold+0x557/0x6aa drivers/hwmon/max6650.c:211 [\u0026lt;00000000da0b7e04\u0026gt;] i2c_device_probe+0x472/0xac0 drivers/i2c/i2c-core-base.c:561 If device_register() fails, thermal_cooling_device_destroy_sysfs() need be called to free the memory allocated in thermal_cooling_device_setup_sysfs(). 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  }
}


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