fkie_cve-2023-52983
Vulnerability from fkie_nvd
Published
2025-03-27 17:15
Modified
2025-04-01 15:39
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
block, bfq: fix uaf for bfqq in bic_set_bfqq()
After commit 64dc8c732f5c ("block, bfq: fix possible uaf for 'bfqq->bic'"),
bic->bfqq will be accessed in bic_set_bfqq(), however, in some context
bic->bfqq will be freed, and bic_set_bfqq() is called with the freed
bic->bfqq.
Fix the problem by always freeing bfqq after bic_set_bfqq().
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| linux | linux_kernel | * | |
| linux | linux_kernel | * | |
| linux | linux_kernel | 6.0.16 |
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"descriptions": [
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"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock, bfq: fix uaf for bfqq in bic_set_bfqq()\n\nAfter commit 64dc8c732f5c (\"block, bfq: fix possible uaf for \u0027bfqq-\u003ebic\u0027\"),\nbic-\u003ebfqq will be accessed in bic_set_bfqq(), however, in some context\nbic-\u003ebfqq will be freed, and bic_set_bfqq() is called with the freed\nbic-\u003ebfqq.\n\nFix the problem by always freeing bfqq after bic_set_bfqq()."
},
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"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: block, bfq: correcci\u00f3n de uaf para bfqq en bic_set_bfqq(). Despu\u00e9s del commit 64dc8c732f5c (\"block, bfq: correcci\u00f3n de posible uaf para \u0027bfqq-\u0026gt;bic\u0027\"), se acceder\u00e1 a bic-\u0026gt;bfqq en bic_set_bfqq(). Sin embargo, en algunos contextos, se liberar\u00e1 bic-\u0026gt;bfqq y se llamar\u00e1 a bic_set_bfqq() con el bic-\u0026gt;bfqq liberado. Para solucionar el problema, libere siempre bfqq despu\u00e9s de bic_set_bfqq()."
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"id": "CVE-2023-52983",
"lastModified": "2025-04-01T15:39:39.127",
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"scope": "UNCHANGED",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
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"published": "2025-03-27T17:15:45.557",
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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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