In the Linux kernel, the following vulnerability has been resolved:
RDMA/uverbs: Prevent integer overflow issue
In the expression "cmd.wqe_size * cmd.wr_count", both variables are u32
values that come from the user so the multiplication can lead to integer
wrapping. Then we pass the result to uverbs_request_next_ptr() which also
could potentially wrap. The "cmd.sge_count * sizeof(struct ib_uverbs_sge)"
multiplication can also overflow on 32bit systems although it's fine on
64bit systems.
This patch does two things. First, I've re-arranged the condition in
uverbs_request_next_ptr() so that the use controlled variable "len" is on
one side of the comparison by itself without any math. Then I've modified
all the callers to use size_mul() for the multiplications.
Metrics
Affected Vendors & Products
References
History
Tue, 21 Jan 2025 18:00:00 +0000
Type | Values Removed | Values Added |
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First Time appeared |
Linux
Linux linux Kernel |
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Weaknesses | CWE-190 | |
CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.13:rc2:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.13:rc3:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.13:rc4:*:*:*:*:*:* cpe:2.3:o:linux:linux_kernel:6.13:rc5:*:*:*:*:*:* |
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Vendors & Products |
Linux
Linux linux Kernel |
Thu, 16 Jan 2025 14:00:00 +0000
Type | Values Removed | Values Added |
---|---|---|
References |
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Metrics |
threat_severity
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cvssV3_1
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Wed, 15 Jan 2025 13:15:00 +0000
Type | Values Removed | Values Added |
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Description | In the Linux kernel, the following vulnerability has been resolved: RDMA/uverbs: Prevent integer overflow issue In the expression "cmd.wqe_size * cmd.wr_count", both variables are u32 values that come from the user so the multiplication can lead to integer wrapping. Then we pass the result to uverbs_request_next_ptr() which also could potentially wrap. The "cmd.sge_count * sizeof(struct ib_uverbs_sge)" multiplication can also overflow on 32bit systems although it's fine on 64bit systems. This patch does two things. First, I've re-arranged the condition in uverbs_request_next_ptr() so that the use controlled variable "len" is on one side of the comparison by itself without any math. Then I've modified all the callers to use size_mul() for the multiplications. | |
Title | RDMA/uverbs: Prevent integer overflow issue | |
References |
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Status: PUBLISHED
Assigner: Linux
Published: 2025-01-15T13:05:42.690Z
Updated: 2025-01-20T06:28:58.798Z
Reserved: 2025-01-11T14:45:42.027Z
Link: CVE-2024-57890

No data.

Status : Analyzed
Published: 2025-01-15T13:15:13.473
Modified: 2025-01-21T17:41:24.450
Link: CVE-2024-57890
