Riskcovery

CVE-2023-52790

swiotlb: fix out-of-bounds TLB allocations with CONFIG_SWIOTLB_DYNAMIC

State
Published
Severity
8.8 High
Published
May 21, 2024
Updated
Aug 5, 2026
Reserved
May 21, 2024

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

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.

Scores

CVSSScoreVectorSource
3.18.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 79636caad3618e2b38457f6e298c9b31ba82b489 to before ce7612496a4ba6068bc68aa1fa9d947dadb4ad9bAffected
  • 79636caad3618e2b38457f6e298c9b31ba82b489 to before 53c87e846e335e3c18044c397cc35178163d7827Affected
LinuxLinux
  • 6.6Affected
  • before 6.6Not affected
  • 6.6.3 through 6.6.*Not affected
  • 6.7 and laterNot affected

References

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