fkie_cve-2022-49793
Vulnerability from fkie_nvd
Published
2025-05-01 15:16
Modified
2025-05-02 13:53
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
iio: trigger: sysfs: fix possible memory leak in iio_sysfs_trig_init()
dev_set_name() allocates memory for name, it need be freed
when device_add() fails, call put_device() to give up the
reference that hold in device_initialize(), so that it can
be freed in kobject_cleanup() when the refcount hit to 0.
Fault injection test can trigger this:
unreferenced object 0xffff8e8340a7b4c0 (size 32):
comm "modprobe", pid 243, jiffies 4294678145 (age 48.845s)
hex dump (first 32 bytes):
69 69 6f 5f 73 79 73 66 73 5f 74 72 69 67 67 65 iio_sysfs_trigge
72 00 a7 40 83 8e ff ff 00 86 13 c4 f6 ee ff ff r..@............
backtrace:
[<0000000074999de8>] __kmem_cache_alloc_node+0x1e9/0x360
[<00000000497fd30b>] __kmalloc_node_track_caller+0x44/0x1a0
[<000000003636c520>] kstrdup+0x2d/0x60
[<0000000032f84da2>] kobject_set_name_vargs+0x1e/0x90
[<0000000092efe493>] dev_set_name+0x4e/0x70
References
Impacted products
Vendor | Product | Version |
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{ "cveTags": [], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\niio: trigger: sysfs: fix possible memory leak in iio_sysfs_trig_init()\n\ndev_set_name() allocates memory for name, it need be freed\nwhen device_add() fails, call put_device() to give up the\nreference that hold in device_initialize(), so that it can\nbe freed in kobject_cleanup() when the refcount hit to 0.\n\nFault injection test can trigger this:\n\nunreferenced object 0xffff8e8340a7b4c0 (size 32):\n comm \"modprobe\", pid 243, jiffies 4294678145 (age 48.845s)\n hex dump (first 32 bytes):\n 69 69 6f 5f 73 79 73 66 73 5f 74 72 69 67 67 65 iio_sysfs_trigge\n 72 00 a7 40 83 8e ff ff 00 86 13 c4 f6 ee ff ff r..@............\n backtrace:\n [\u003c0000000074999de8\u003e] __kmem_cache_alloc_node+0x1e9/0x360\n [\u003c00000000497fd30b\u003e] __kmalloc_node_track_caller+0x44/0x1a0\n [\u003c000000003636c520\u003e] kstrdup+0x2d/0x60\n [\u003c0000000032f84da2\u003e] kobject_set_name_vargs+0x1e/0x90\n [\u003c0000000092efe493\u003e] dev_set_name+0x4e/0x70" }, { "lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: iio: trigger: sysfs: se corrige una posible fuga de memoria en iio_sysfs_trig_init(). dev_set_name() asigna memoria para name. Esta debe liberarse cuando device_add() falla. Se llama a put_device() para liberar la referencia contenida en device_initialize(), de modo que pueda liberarse en kobject_cleanup() cuando refcount llegue a 0. La prueba de inyecci\u00f3n de fallos puede desencadenar esto: objeto sin referencia 0xffff8e8340a7b4c0 (tama\u00f1o 32): comm \"modprobe\", pid 243, jiffies 4294678145 (edad 48.845s) volcado hexadecimal (primeros 32 bytes): 69 69 6f 5f 73 79 73 66 73 5f 74 72 69 67 67 65 iio_sysfs_trigge 72 00 a7 40 83 8e ff ff 00 86 13 c4 f6 ee ff ff r..@............ backtrace: [\u0026lt;0000000074999de8\u0026gt;] __kmem_cache_alloc_node+0x1e9/0x360 [\u0026lt;00000000497fd30b\u0026gt;] __kmalloc_node_track_caller+0x44/0x1a0 [\u0026lt;000000003636c520\u0026gt;] kstrdup+0x2d/0x60 [\u0026lt;0000000032f84da2\u0026gt;] kobject_set_name_vargs+0x1e/0x90 [\u0026lt;0000000092efe493\u0026gt;] dev_set_name+0x4e/0x70 " } ], "id": "CVE-2022-49793", "lastModified": "2025-05-02T13:53:20.943", "metrics": {}, "published": "2025-05-01T15:16:02.563", "references": [ { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0dd52e141afde089304de470148d311b05c14564" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2c4e65285bdea23fd36d2ff376006ac64db6f42e" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5a39382aa5411d64b25a71516c2c7480aab13bb7" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/656f670613662b6cc77aad14112db2803ad18fa8" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8dddf2699da296c84205582aaead6b43dd7e8c4b" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b47bb521961f027b4dcf8683337a7a1ba9e5ea1f" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/efa17e90e1711bdb084e3954fa44afb6647331c0" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f68c96821b61d2c71a35dbb8bf90c347fad624d9" } ], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis" }
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Sightings
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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