CVE-2024-49894

drm/amd/display: Fix index out of bounds in degamma hardware format translation

HIGH
7.8
CVSS Score
Published: October 21, 2024 at 06:01 PM UTC
Updated: October 15, 2026 at 01:19 AM UTC
4 products affected across 3 vendorsLinux KernelDebian LinuxSIMATIC S7-1500 Tm MFP Firmware· also runs on 1 platform

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Severity
HIGH7.8
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix index out of bounds in degamma hardware format translation Fixes index out of bounds issue in `cm_helper_translate_curve_to_degamma_hw_format` function. The issue could occur when the index 'i' exceeds the number of transfer function points (TRANSFER_FUNC_POINTS). The fix adds a check to ensure 'i' is within bounds before accessing the transfer function points. If 'i' is out of bounds the function returns false to indicate an error. Reported by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:594 cm_helper_translate_curve_to_degamma_hw_format() error: buffer overflow 'output_tf->tf_pts.red' 1025 <= s32max drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:595 cm_helper_translate_curve_to_degamma_hw_format() error: buffer overflow 'output_tf->tf_pts.green' 1025 <= s32max drivers/gpu/drm/amd/amdgpu/../display/dc/dcn10/dcn10_cm_common.c:596 cm_helper_translate_curve_to_degamma_hw_format() error: buffer overflow 'output_tf->tf_pts.blue' 1025 <= s32max

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions4.15 ≤ v < 4.19.3234.20 ≤ v < 5.4.2855.11 ≤ v < 5.15.1685.16 ≤ v < 6.1.1135.5 ≤ v < 5.10.2276.11 ≤ v < 6.11.36.2 ≤ v < 6.6.556.7 ≤ v < 6.10.144.154562236b3bc0a28aeb6ee93b2d8a849a4c4e1c7c
Vendor states this is fixed in 07078fa5d589a7fbce8f81ea8acf7aa0021ab38e (fixed)
Vendor states this is fixed in 122e3a7a8c7bcbe3aacddd6103f67f9f36bed473 (fixed)
Vendor states this is fixed in 2495c8e272d84685403506833a664fad932e453a (fixed)
Vendor states this is fixed in 2f5da549535be8ccd2ab7c9abac8562ad370b181 (fixed)
Vendor states this is fixed in b3dfa878257a7e98830b3009ca5831a01d8f85fc (fixed)
Vendor states this is fixed in b7e99058eb2e86aabd7a10761e76cae33d22b49f (fixed)
Vendor states this is fixed in c130a3c09e3746c1a09ce26c20d21d449d039b1d (fixed)
Vendor states this is fixed in c6979719012a90e5b8e3bc31725fbfdd0b9b2b79 (fixed)
Vendor states this is fixed in f5f6d90087131812c1e4b9d3103f400f1624396d (fixed)
Vendor states this is fixed in 4.15 (unaffected)
Vendor states this is fixed in 4.19.323 (unaffected)
Vendor states this is fixed in 5.10.227 (unaffected)
Vendor states this is fixed in 5.15.168 (unaffected)
Vendor states this is fixed in 5.4.285 (unaffected)
Vendor states this is fixed in 6.1.113 (unaffected)
Vendor states this is fixed in 6.10.14 (unaffected)
Vendor states this is fixed in 6.11.3 (unaffected)
Vendor states this is fixed in 6.12 (unaffected)
Vendor states this is fixed in 6.6.55 (unaffected)
siemens-simatic-s7-1500-tm-mfp (same device)
All versionsv < 3.2
Affected range stops below 3.2, so it looks safe — our inference, not a vendor statement

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

References (13)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/07078fa5d589a7fbce8f81ea8acf7aa0021ab38e
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/122e3a7a8c7bcbe3aacddd6103f67f9f36bed473
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/2495c8e272d84685403506833a664fad932e453a
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/2f5da549535be8ccd2ab7c9abac8562ad370b181
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b3dfa878257a7e98830b3009ca5831a01d8f85fc
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b7e99058eb2e86aabd7a10761e76cae33d22b49f
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c130a3c09e3746c1a09ce26c20d21d449d039b1d
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/c6979719012a90e5b8e3bc31725fbfdd0b9b2b79

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-129

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