In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Implement bounds check for stream encoder creation in DCN401
'stream_enc_regs' array is an array of dcn10_stream_enc_registers
structures. The array is initialized with four elements, corresponding
to the four calls to stream_enc_regs() in the array initializer. This
means that valid indices for this array are 0, 1, 2, and 3.
The error message 'stream_enc_regs' 4 <= 5 below, is indicating that
there is an attempt to access this array with an index of 5, which is
out of bounds. This could lead to undefined behavior
Here, eng_id is used as an index to access the stream_enc_regs array. If
eng_id is 5, this would result in an out-of-bounds access on the
stream_enc_regs array.
Thus fixing Buffer overflow error in dcn401_stream_encoder_create
Found by smatch:
drivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn401/dcn401_resource.c:1209 dcn401_stream_encoder_create() error: buffer overflow 'stream_enc_regs' 4 <= 5
Metrics
Affected Vendors & Products
References
History
Tue, 29 Oct 2024 16:15:00 +0000
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Linux
Linux linux Kernel |
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Weaknesses | CWE-129 | |
CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
Vendors & Products |
Linux
Linux linux Kernel |
Tue, 22 Oct 2024 14:15:00 +0000
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Metrics |
ssvc
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Tue, 22 Oct 2024 13:30:00 +0000
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References |
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Metrics |
threat_severity
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cvssV3_1
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Mon, 21 Oct 2024 18:15:00 +0000
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Description | In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Implement bounds check for stream encoder creation in DCN401 'stream_enc_regs' array is an array of dcn10_stream_enc_registers structures. The array is initialized with four elements, corresponding to the four calls to stream_enc_regs() in the array initializer. This means that valid indices for this array are 0, 1, 2, and 3. The error message 'stream_enc_regs' 4 <= 5 below, is indicating that there is an attempt to access this array with an index of 5, which is out of bounds. This could lead to undefined behavior Here, eng_id is used as an index to access the stream_enc_regs array. If eng_id is 5, this would result in an out-of-bounds access on the stream_enc_regs array. Thus fixing Buffer overflow error in dcn401_stream_encoder_create Found by smatch: drivers/gpu/drm/amd/amdgpu/../display/dc/resource/dcn401/dcn401_resource.c:1209 dcn401_stream_encoder_create() error: buffer overflow 'stream_enc_regs' 4 <= 5 | |
Title | drm/amd/display: Implement bounds check for stream encoder creation in DCN401 | |
References |
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MITRE
Status: PUBLISHED
Assigner: Linux
Published: 2024-10-21T18:02:19.694Z
Updated: 2024-12-19T09:30:24.673Z
Reserved: 2024-10-21T12:17:06.051Z
Link: CVE-2024-49970
Vulnrichment
Updated: 2024-10-22T13:33:58.480Z
NVD
Status : Analyzed
Published: 2024-10-21T18:15:17.973
Modified: 2024-10-29T15:57:41.000
Link: CVE-2024-49970
Redhat