fkie_cve-2022-49433
Vulnerability from fkie_nvd
Published
2025-02-26 07:01
Modified
2025-02-26 07:01
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
RDMA/hfi1: Prevent use of lock before it is initialized
If there is a failure during probe of hfi1 before the sdma_map_lock is
initialized, the call to hfi1_free_devdata() will attempt to use a lock
that has not been initialized. If the locking correctness validator is on
then an INFO message and stack trace resembling the following may be seen:
INFO: trying to register non-static key.
The code is fine but needs lockdep annotation, or maybe
you didn't initialize this object before use?
turning off the locking correctness validator.
Call Trace:
register_lock_class+0x11b/0x880
__lock_acquire+0xf3/0x7930
lock_acquire+0xff/0x2d0
_raw_spin_lock_irq+0x46/0x60
sdma_clean+0x42a/0x660 [hfi1]
hfi1_free_devdata+0x3a7/0x420 [hfi1]
init_one+0x867/0x11a0 [hfi1]
pci_device_probe+0x40e/0x8d0
The use of sdma_map_lock in sdma_clean() is for freeing the sdma_map
memory, and sdma_map is not allocated/initialized until after
sdma_map_lock has been initialized. This code only needs to be run if
sdma_map is not NULL, and so checking for that condition will avoid trying
to use the lock before it is initialized.
References
Impacted products
| Vendor | Product | Version |
|---|
{
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/hfi1: Prevent use of lock before it is initialized\n\nIf there is a failure during probe of hfi1 before the sdma_map_lock is\ninitialized, the call to hfi1_free_devdata() will attempt to use a lock\nthat has not been initialized. If the locking correctness validator is on\nthen an INFO message and stack trace resembling the following may be seen:\n\n INFO: trying to register non-static key.\n The code is fine but needs lockdep annotation, or maybe\n you didn\u0027t initialize this object before use?\n turning off the locking correctness validator.\n Call Trace:\n register_lock_class+0x11b/0x880\n __lock_acquire+0xf3/0x7930\n lock_acquire+0xff/0x2d0\n _raw_spin_lock_irq+0x46/0x60\n sdma_clean+0x42a/0x660 [hfi1]\n hfi1_free_devdata+0x3a7/0x420 [hfi1]\n init_one+0x867/0x11a0 [hfi1]\n pci_device_probe+0x40e/0x8d0\n\nThe use of sdma_map_lock in sdma_clean() is for freeing the sdma_map\nmemory, and sdma_map is not allocated/initialized until after\nsdma_map_lock has been initialized. This code only needs to be run if\nsdma_map is not NULL, and so checking for that condition will avoid trying\nto use the lock before it is initialized."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: RDMA/hfi1: Evitar el uso del bloqueo antes de que se inicialice Si hay un error durante el sondeo de hfi1 antes de que se inicialice sdma_map_lock, la llamada a hfi1_free_devdata() intentar\u00e1 usar un bloqueo que no se ha inicializado. Si el validador de correcci\u00f3n de bloqueo est\u00e1 activado, se puede ver un mensaje INFO y un seguimiento de pila similar al siguiente: INFO: intentando registrar una clave no est\u00e1tica. El c\u00f3digo est\u00e1 bien, pero necesita la anotaci\u00f3n lockdep, o tal vez no inicializ\u00f3 este objeto antes de usarlo. desactivando el validador de correcci\u00f3n de bloqueo. Rastreo de llamadas: register_lock_class+0x11b/0x880 __lock_acquire+0xf3/0x7930 lock_acquire+0xff/0x2d0 _raw_spin_lock_irq+0x46/0x60 sdma_clean+0x42a/0x660 [hfi1] hfi1_free_devdata+0x3a7/0x420 [hfi1] init_one+0x867/0x11a0 [hfi1] pci_device_probe+0x40e/0x8d0 El uso de sdma_map_lock en sdma_clean() es para liberar la memoria sdma_map, y sdma_map no se asigna/inicializa hasta que se haya inicializado sdma_map_lock. Este c\u00f3digo solo necesita ejecutarse si sdma_map no es NULL, por lo que verificar esa condici\u00f3n evitar\u00e1 intentar usar el bloqueo antes de que se inicialice."
}
],
"id": "CVE-2022-49433",
"lastModified": "2025-02-26T07:01:19.763",
"metrics": {},
"published": "2025-02-26T07:01:19.763",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/05c03dfd09c069c4ffd783b47b2da5dcc9421f2c"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/288d198f50434f29b4a26a9de4394ae2305ad8af"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/30eb275e7ed588270ae159cc590a96658e0cfd8f"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/66090815a24ce14cf51ef5453fc0218fe8a39bc2"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/addb192000d8819c0b1553453994df9bb54c28db"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/ca55150bff5817af4f857a746ecab9862c23e12a"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/fc0750e659db7b315bf6348902cc8ca3cdd4b8d8"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Awaiting Analysis"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- 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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