github - ghsa-whgw-qcmx-gp47

ghsa-whgw-qcmx-gp47

Vulnerability from github

Published

2024-04-28 15:30

Modified

2024-04-28 15:30

Details

In the Linux kernel, the following vulnerability has been resolved:

bnxt: prevent skb UAF after handing over to PTP worker

When reading the timestamp is required bnxt_tx_int() hands over the ownership of the completed skb to the PTP worker. The skb should not be used afterwards, as the worker may run before the rest of our code and free the skb, leading to a use-after-free.

Since dev_kfree_skb_any() accepts NULL make the loss of ownership more obvious and set skb to NULL.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-48637"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-04-28T13:15:06Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbnxt: prevent skb UAF after handing over to PTP worker\n\nWhen reading the timestamp is required bnxt_tx_int() hands\nover the ownership of the completed skb to the PTP worker.\nThe skb should not be used afterwards, as the worker may\nrun before the rest of our code and free the skb, leading\nto a use-after-free.\n\nSince dev_kfree_skb_any() accepts NULL make the loss of\nownership more obvious and set skb to NULL.",
  "id": "GHSA-whgw-qcmx-gp47",
  "modified": "2024-04-28T15:30:29Z",
  "published": "2024-04-28T15:30:29Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48637"
    },
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      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/08483e4c0c83b221b8891434a04cec405dee94a6"
    },
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      "url": "https://git.kernel.org/stable/c/32afa1f23e42cc635ccf4c39f24514d03d1e8338"
    },
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      "url": "https://git.kernel.org/stable/c/c31f26c8f69f776759cbbdfb38e40ea91aa0dd65"
    }
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  "schema_version": "1.4.0",
  "severity": []
}

cve-2022-48637

Vulnerability from cvelistv5

Published

2024-04-28 12:59

Modified

2024-12-19 08:04

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: bnxt: prevent skb UAF after handing over to PTP worker When reading the timestamp is required bnxt_tx_int() hands over the ownership of the completed skb to the PTP worker. The skb should not be used afterwards, as the worker may run before the rest of our code and free the skb, leading to a use-after-free. Since dev_kfree_skb_any() accepts NULL make the loss of ownership more obvious and set skb to NULL.

References

▼	URL	Tags
	https://git.kernel.org/stable/c/08483e4c0c83b221b8891434a04cec405dee94a6
	https://git.kernel.org/stable/c/32afa1f23e42cc635ccf4c39f24514d03d1e8338
	https://git.kernel.org/stable/c/c31f26c8f69f776759cbbdfb38e40ea91aa0dd65

Impacted products

Vendor

Product

Version

▼

Linux

Version: 83bb623c968e7351aee5111547693f95f330dc5a
Version: 83bb623c968e7351aee5111547693f95f330dc5a
Version: 83bb623c968e7351aee5111547693f95f330dc5a

Linux

Version: 5.14

Show details on NVD website

JSON

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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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