swiotlb: fix out-of-bounds TLB allocations with CONFIG_SWIOTLB_DYNAMIC
Limit the free list length to the size of the IO TLB. Transient pool can be
smaller than IO_TLB_SEGSIZE, but the free list is initialized with the
assumption that the total number of slots is a multiple of IO_TLB_SEGSIZE.
As a result, swiotlb_area_find_slots() may allocate slots past the end of
a transient IO TLB buffer.
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Tue, 23 Sep 2025 20:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Weaknesses | CWE-787 | |
| CPEs | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
Mon, 04 Nov 2024 15:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Status: PUBLISHED
Assigner: Linux
Published:
Updated: 2026-05-11T19:33:11.986Z
Reserved: 2024-05-21T15:19:24.241Z
Link: CVE-2023-52790
Updated: 2024-08-02T23:11:36.050Z
Status : Analyzed
Published: 2024-05-21T16:15:17.707
Modified: 2025-09-23T20:08:48.230
Link: CVE-2023-52790
OpenCVE Enrichment
Updated: 2025-07-12T22:10:06Z