github - ghsa-c4q6-cxg2-pxc8

ghsa-c4q6-cxg2-pxc8

Vulnerability from github

Published

2024-02-27 21:31

Modified

2024-02-27 21:31

Details

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

bus: mhi: core: Fix invalid error returning in mhi_queue

mhi_queue returns an error when the doorbell is not accessible in the current state. This can happen when the device is in non M0 state, like M3, and needs to be waken-up prior ringing the DB. This case is managed earlier by triggering an asynchronous M3 exit via controller resume/suspend callbacks, that in turn will cause M0 transition and DB update.

So, since it's not an error but just delaying of doorbell update, there is no reason to return an error.

This also fixes a use after free error for skb case, indeed a caller queuing skb will try to free the skb if the queueing fails, but in that case queueing has been done.

Show details on source website

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  "aliases": [
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    "nvd_published_at": "2024-02-27T19:04:07Z",
    "severity": null
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  "id": "GHSA-c4q6-cxg2-pxc8",
  "modified": "2024-02-27T21:31:27Z",
  "published": "2024-02-27T21:31:27Z",
  "references": [
    {
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cve-2021-46969

Vulnerability from cvelistv5

Published

2024-02-27 18:47

Modified

2024-09-11 17:33

Severity

Summary

bus: mhi: core: Fix invalid error returning in mhi_queue

References

URL	Tags
https://git.kernel.org/stable/c/a99b661c3187365f81026d89b1133a76cd2652b3
https://git.kernel.org/stable/c/0ecc1c70dcd32c0f081b173a1a5d89952686f271

Impacted products

Vendor	Product
Linux	Linux
Linux	Linux

Show details on NVD website

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