https://vulnerability.circl.lu/sightings/feed 2026-05-10T10:54:23.613297+00:00 Vulnerability-Lookup info@circl.lu python-feedgen Contains only the most 10 recent sightings. https://vulnerability.circl.lu/sighting/a19cbbe1-5be2-4fad-b9a1-6c7ad6f902b9/export 2026-05-10T10:54:23.991137+00:00 Automation user http://vulnerability.circl.lu/user/automation {"uuid": "a19cbbe1-5be2-4fad-b9a1-6c7ad6f902b9", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2023-52910", "type": "seen", "source": "https://t.me/cvedetector/3748", "content": "{\n \"Source\": \"CVE FEED\",\n \"Title\": \"CVE-2023-52910 - \"Linux kernel IOMMU iova: Allocation Size Overflow Vulnerability in `__alloc_and_insert_iova_range`\"\", \n \"Content\": \"CVE ID : CVE-2023-52910 \nPublished : Aug. 21, 2024, 7:15 a.m. | 35\u00a0minutes ago \nDescription : In the Linux kernel, the following vulnerability has been resolved: \n \niommu/iova: Fix alloc iova overflows issue \n \nIn __alloc_and_insert_iova_range, there is an issue that retry_pfn \noverflows. The value of iovad->anchor.pfn_hi is ~0UL, then when \niovad->cached_node is iovad->anchor, curr_iova->pfn_hi + 1 will \noverflow. As a result, if the retry logic is executed, low_pfn is \nupdated to 0, and then new_pfn cached_node is assigned as iovad->anchor. For \nexample, the iova domain size is 10M, start_pfn is 0x1_F000_0000, \nand the iova size allocated for the first time is 11M. The \nfollowing is the log information, new->pfn_lo is smaller than \niovad->cached_node. \n \nExample log as follows: \n[ 223.798112][T1705487] sh: [name:iova&]__alloc_and_insert_iova_range \nstart_pfn:0x1f0000,retry_pfn:0x0,size:0xb00,limit_pfn:0x1f0a00 \n[ 223.799590][T1705487] sh: [name:iova&]__alloc_and_insert_iova_range \nsuccess start_pfn:0x1f0000,new->pfn_lo:0x1efe00,new->pfn_hi:0x1f08ff \n \n2. The node with the largest iova->pfn_lo value in the iova domain \nis deleted, iovad->cached_node will be updated to iovad->anchor, \nand then the alloc iova size exceeds the maximum iova size that can \nbe allocated in the domain. \n \nAfter judging that retry_pfn is less than limit_pfn, call retry_pfn+1 \nto fix the overflow issue. \nSeverity: 0.0 | NA \nVisit the link for more details, such as CVSS details, affected products, timeline, and more...\",\n \"Detection Date\": \"21 Aug 2024\",\n \"Type\": \"Vulnerability\"\n}\n\ud83d\udd39 t.me/cvedetector \ud83d\udd39", "creation_timestamp": "2024-08-21T09:52:13.000000Z"} 2024-08-21T09:52:13+00:00