github - ghsa-hpj2-q4fg-98gf

ghsa-hpj2-q4fg-98gf

Vulnerability from github

Published

2024-05-22 09:31

Modified

2024-05-22 09:31

Details

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

ice: Avoid crash from unnecessary IDA free

In the remove path, there is an attempt to free the aux_idx IDA whether it was allocated or not. This can potentially cause a crash when unloading the driver on systems that do not initialize support for RDMA. But, this free cannot be gated by the status bit for RDMA, since it is allocated if the driver detects support for RDMA at probe time, but the driver can enter into a state where RDMA is not supported after the IDA has been allocated at probe time and this would lead to a memory leak.

Initialize aux_idx to an invalid value and check for a valid value when unloading to determine if an IDA free is necessary.

Show details on source website

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  "affected": [],
  "aliases": [
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  "database_specific": {
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    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-05-22T07:15:10Z",
    "severity": null
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  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nice: Avoid crash from unnecessary IDA free\n\nIn the remove path, there is an attempt to free the aux_idx IDA whether\nit was allocated or not.  This can potentially cause a crash when\nunloading the driver on systems that do not initialize support for RDMA.\nBut, this free cannot be gated by the status bit for RDMA, since it is\nallocated if the driver detects support for RDMA at probe time, but the\ndriver can enter into a state where RDMA is not supported after the IDA\nhas been allocated at probe time and this would lead to a memory leak.\n\nInitialize aux_idx to an invalid value and check for a valid value when\nunloading to determine if an IDA free is necessary.",
  "id": "GHSA-hpj2-q4fg-98gf",
  "modified": "2024-05-22T09:31:45Z",
  "published": "2024-05-22T09:31:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47453"
    },
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cve-2021-47453

Vulnerability from cvelistv5

Published

2024-05-22 06:19

Modified

2024-08-04 05:39

Severity

Summary

ice: Avoid crash from unnecessary IDA free

References

URL	Tags
https://git.kernel.org/stable/c/777682e59840e24e6c5672197e6ffbcf4bff823b
https://git.kernel.org/stable/c/73e30a62b19b9fbb4e6a3465c59da186630d5f2e

Impacted products

Vendor	Product
Linux	Linux
Linux	Linux

Show details on NVD website

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