github - ghsa-69cq-jw85-57p8

ghsa-69cq-jw85-57p8

Vulnerability from github

Published

2024-02-29 15:32

Modified

2024-02-29 15:32

Details

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

drm/amd/display: Wake DMCUB before sending a command

[Why] We can hang in place trying to send commands when the DMCUB isn't powered on.

[How] For functions that execute within a DC context or DC lock we can wrap the direct calls to dm_execute_dmub_cmd/list with code that exits idle power optimizations and reallows once we're done with the command submission on success.

For DM direct submissions the DM will need to manage the enter/exit sequencing manually.

We cannot invoke a DMCUB command directly within the DM execution helper or we can deadlock.

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{
  "affected": [],
  "aliases": [
    "CVE-2023-52485"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-02-29T15:15:07Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/display: Wake DMCUB before sending a command\n\n[Why]\nWe can hang in place trying to send commands when the DMCUB isn\u0027t\npowered on.\n\n[How]\nFor functions that execute within a DC context or DC lock we can\nwrap the direct calls to dm_execute_dmub_cmd/list with code that\nexits idle power optimizations and reallows once we\u0027re done with\nthe command submission on success.\n\nFor DM direct submissions the DM will need to manage the enter/exit\nsequencing manually.\n\nWe cannot invoke a DMCUB command directly within the DM execution\nhelper or we can deadlock.",
  "id": "GHSA-69cq-jw85-57p8",
  "modified": "2024-02-29T15:32:27Z",
  "published": "2024-02-29T15:32:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-52485"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/303197775a97416b62d4da69280d0c120a20e009"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8892780834ae294bc3697c7d0e056d7743900b39"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

cve-2023-52485

Vulnerability from cvelistv5

Published

2024-02-29 14:57

Modified

2024-11-13 18:26

Severity ?

Summary

drm/amd/display: Wake DMCUB before sending a command

References

▼	URL	Tags
	https://git.kernel.org/stable/c/303197775a97416b62d4da69280d0c120a20e009
	https://git.kernel.org/stable/c/8892780834ae294bc3697c7d0e056d7743900b39

Impacted products

▼	Vendor	Product
	Linux	Linux
	Linux	Linux

Show details on NVD website

JSON

To clipboard

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                  },
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                "role": "CISA Coordinator",
                "timestamp": "2024-03-05T22:17:04.458995Z",
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            "drivers/gpu/drm/amd/display/dc/bios/command_table2.c",
            "drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c",
            "drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c",
            "drivers/gpu/drm/amd/display/dc/clk_mgr/dcn315/dcn315_clk_mgr.c",
            "drivers/gpu/drm/amd/display/dc/clk_mgr/dcn316/dcn316_clk_mgr.c",
            "drivers/gpu/drm/amd/display/dc/clk_mgr/dcn35/dcn35_clk_mgr.c",
            "drivers/gpu/drm/amd/display/dc/core/dc.c",
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            "drivers/gpu/drm/amd/display/dc/dc_dmub_srv.c",
            "drivers/gpu/drm/amd/display/dc/dc_dmub_srv.h",
            "drivers/gpu/drm/amd/display/dc/dc_helper.c",
            "drivers/gpu/drm/amd/display/dc/dce/dmub_abm_lcd.c",
            "drivers/gpu/drm/amd/display/dc/dce/dmub_hw_lock_mgr.c",
            "drivers/gpu/drm/amd/display/dc/dce/dmub_outbox.c",
            "drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c",
            "drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c",
            "drivers/gpu/drm/amd/display/dc/dcn31/dcn31_dio_link_encoder.c",
            "drivers/gpu/drm/amd/display/dc/dcn31/dcn31_panel_cntl.c",
            "drivers/gpu/drm/amd/display/dc/hwss/dcn21/dcn21_hwseq.c",
            "drivers/gpu/drm/amd/display/dc/hwss/dcn30/dcn30_hwseq.c",
            "drivers/gpu/drm/amd/display/dc/hwss/dcn31/dcn31_hwseq.c",
            "drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c",
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            "drivers/gpu/drm/amd/display/dc/dce/dmub_abm_lcd.c",
            "drivers/gpu/drm/amd/display/dc/dce/dmub_hw_lock_mgr.c",
            "drivers/gpu/drm/amd/display/dc/dce/dmub_outbox.c",
            "drivers/gpu/drm/amd/display/dc/dce/dmub_psr.c",
            "drivers/gpu/drm/amd/display/dc/dcn21/dcn21_hubp.c",
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            "drivers/gpu/drm/amd/display/dc/hwss/dcn31/dcn31_hwseq.c",
            "drivers/gpu/drm/amd/display/dc/hwss/dcn32/dcn32_hwseq.c",
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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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