CVE-2024-50177 (GCVE-0-2024-50177)

Vulnerability from cvelistv5 – Published: 2024-11-08 05:23 – Updated: 2025-10-01 20:27
VLAI?
Title
drm/amd/display: fix a UBSAN warning in DML2.1
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix a UBSAN warning in DML2.1 When programming phantom pipe, since cursor_width is explicity set to 0, this causes calculation logic to trigger overflow for an unsigned int triggering the kernel's UBSAN check as below: [ 40.962845] UBSAN: shift-out-of-bounds in /tmp/amd.EfpumTkO/amd/amdgpu/../display/dc/dml2/dml21/src/dml2_core/dml2_core_dcn4_calcs.c:3312:34 [ 40.962849] shift exponent 4294967170 is too large for 32-bit type 'unsigned int' [ 40.962852] CPU: 1 PID: 1670 Comm: gnome-shell Tainted: G W OE 6.5.0-41-generic #41~22.04.2-Ubuntu [ 40.962854] Hardware name: Gigabyte Technology Co., Ltd. X670E AORUS PRO X/X670E AORUS PRO X, BIOS F21 01/10/2024 [ 40.962856] Call Trace: [ 40.962857] <TASK> [ 40.962860] dump_stack_lvl+0x48/0x70 [ 40.962870] dump_stack+0x10/0x20 [ 40.962872] __ubsan_handle_shift_out_of_bounds+0x1ac/0x360 [ 40.962878] calculate_cursor_req_attributes.cold+0x1b/0x28 [amdgpu] [ 40.963099] dml_core_mode_support+0x6b91/0x16bc0 [amdgpu] [ 40.963327] ? srso_alias_return_thunk+0x5/0x7f [ 40.963331] ? CalculateWatermarksMALLUseAndDRAMSpeedChangeSupport+0x18b8/0x2790 [amdgpu] [ 40.963534] ? srso_alias_return_thunk+0x5/0x7f [ 40.963536] ? dml_core_mode_support+0xb3db/0x16bc0 [amdgpu] [ 40.963730] dml2_core_calcs_mode_support_ex+0x2c/0x90 [amdgpu] [ 40.963906] ? srso_alias_return_thunk+0x5/0x7f [ 40.963909] ? dml2_core_calcs_mode_support_ex+0x2c/0x90 [amdgpu] [ 40.964078] core_dcn4_mode_support+0x72/0xbf0 [amdgpu] [ 40.964247] dml2_top_optimization_perform_optimization_phase+0x1d3/0x2a0 [amdgpu] [ 40.964420] dml2_build_mode_programming+0x23d/0x750 [amdgpu] [ 40.964587] dml21_validate+0x274/0x770 [amdgpu] [ 40.964761] ? srso_alias_return_thunk+0x5/0x7f [ 40.964763] ? resource_append_dpp_pipes_for_plane_composition+0x27c/0x3b0 [amdgpu] [ 40.964942] dml2_validate+0x504/0x750 [amdgpu] [ 40.965117] ? dml21_copy+0x95/0xb0 [amdgpu] [ 40.965291] ? srso_alias_return_thunk+0x5/0x7f [ 40.965295] dcn401_validate_bandwidth+0x4e/0x70 [amdgpu] [ 40.965491] update_planes_and_stream_state+0x38d/0x5c0 [amdgpu] [ 40.965672] update_planes_and_stream_v3+0x52/0x1e0 [amdgpu] [ 40.965845] ? srso_alias_return_thunk+0x5/0x7f [ 40.965849] dc_update_planes_and_stream+0x71/0xb0 [amdgpu] Fix this by adding a guard for checking cursor width before triggering the size calculation.
Severity ?
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-190 - Integer Overflow or Wraparound
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 70839da6360500a82e4d5f78499284474cbed7c1 , < 27bc3da5eae57e3af8f5648b4498ffde48781434 (git)
Affected: 70839da6360500a82e4d5f78499284474cbed7c1 , < eaf3adb8faab611ba57594fa915893fc93a7788c (git)
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    Linux Linux Affected: 6.11
Unaffected: 0 , < 6.11 (semver)
Unaffected: 6.11.3 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
Create a notification for this product.
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X670E AORUS PRO X/X670E AORUS PRO X, BIOS F21 01/10/2024\\n[   40.962856] Call Trace:\\n[   40.962857]  \u003cTASK\u003e\\n[   40.962860]  dump_stack_lvl+0x48/0x70\\n[   40.962870]  dump_stack+0x10/0x20\\n[   40.962872]  __ubsan_handle_shift_out_of_bounds+0x1ac/0x360\\n[   40.962878]  calculate_cursor_req_attributes.cold+0x1b/0x28 [amdgpu]\\n[   40.963099]  dml_core_mode_support+0x6b91/0x16bc0 [amdgpu]\\n[   40.963327]  ? srso_alias_return_thunk+0x5/0x7f\\n[   40.963331]  ? CalculateWatermarksMALLUseAndDRAMSpeedChangeSupport+0x18b8/0x2790 [amdgpu]\\n[   40.963534]  ? srso_alias_return_thunk+0x5/0x7f\\n[   40.963536]  ? dml_core_mode_support+0xb3db/0x16bc0 [amdgpu]\\n[   40.963730]  dml2_core_calcs_mode_support_ex+0x2c/0x90 [amdgpu]\\n[   40.963906]  ? srso_alias_return_thunk+0x5/0x7f\\n[   40.963909]  ? dml2_core_calcs_mode_support_ex+0x2c/0x90 [amdgpu]\\n[   40.964078]  core_dcn4_mode_support+0x72/0xbf0 [amdgpu]\\n[   40.964247]  dml2_top_optimization_perform_optimization_phase+0x1d3/0x2a0 [amdgpu]\\n[   40.964420]  dml2_build_mode_programming+0x23d/0x750 [amdgpu]\\n[   40.964587]  dml21_validate+0x274/0x770 [amdgpu]\\n[   40.964761]  ? srso_alias_return_thunk+0x5/0x7f\\n[   40.964763]  ? resource_append_dpp_pipes_for_plane_composition+0x27c/0x3b0 [amdgpu]\\n[   40.964942]  dml2_validate+0x504/0x750 [amdgpu]\\n[   40.965117]  ? dml21_copy+0x95/0xb0 [amdgpu]\\n[   40.965291]  ? srso_alias_return_thunk+0x5/0x7f\\n[   40.965295]  dcn401_validate_bandwidth+0x4e/0x70 [amdgpu]\\n[   40.965491]  update_planes_and_stream_state+0x38d/0x5c0 [amdgpu]\\n[   40.965672]  update_planes_and_stream_v3+0x52/0x1e0 [amdgpu]\\n[   40.965845]  ? srso_alias_return_thunk+0x5/0x7f\\n[   40.965849]  dc_update_planes_and_stream+0x71/0xb0 [amdgpu]\\n\\nFix this by adding a guard for checking cursor width before triggering\\nthe size calculation.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.11.3\", \"versionStartIncluding\": \"6.11\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.12\", \"versionStartIncluding\": \"6.11\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T09:47:59.860Z\"}}}",
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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