CVE-2024-38610— Linux kernel 安全漏洞
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一、 漏洞 CVE-2024-38610 基础信息
漏洞信息
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Vulnerability Title
drivers/virt/acrn: fix PFNMAP PTE checks in acrn_vm_ram_map()
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drivers/virt/acrn: fix PFNMAP PTE checks in acrn_vm_ram_map() Patch series "mm: follow_pte() improvements and acrn follow_pte() fixes". Patch #1 fixes a bunch of issues I spotted in the acrn driver. It compiles, that's all I know. I'll appreciate some review and testing from acrn folks. Patch #2+#3 improve follow_pte(), passing a VMA instead of the MM, adding more sanity checks, and improving the documentation. Gave it a quick test on x86-64 using VM_PAT that ends up using follow_pte(). This patch (of 3): We currently miss handling various cases, resulting in a dangerous follow_pte() (previously follow_pfn()) usage. (1) We're not checking PTE write permissions. Maybe we should simply always require pte_write() like we do for pin_user_pages_fast(FOLL_WRITE)? Hard to tell, so let's check for ACRN_MEM_ACCESS_WRITE for now. (2) We're not rejecting refcounted pages. As we are not using MMU notifiers, messing with refcounted pages is dangerous and can result in use-after-free. Let's make sure to reject them. (3) We are only looking at the first PTE of a bigger range. We only lookup a single PTE, but memmap->len may span a larger area. Let's loop over all involved PTEs and make sure the PFN range is actually contiguous. Reject everything else: it couldn't have worked either way, and rather made use access PFNs we shouldn't be accessing.
来源: 美国国家漏洞数据库 NVD
CVSS Information
N/A
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
N/A
来源: 美国国家漏洞数据库 NVD
Vulnerability Title
Linux kernel 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于没有检查 PTE 写入权限。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
二、漏洞 CVE-2024-38610 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
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同批安全公告 · Linux · 2024-06-19 · 共 122 条
| CVE-2024-38611 | Linux kernel 安全漏洞 | |
| CVE-2021-47585 | Linux kernel安全漏洞 | |
| CVE-2021-47584 | Linux kernel 安全漏洞 | |
| CVE-2021-47582 | Linux kernel 安全漏洞 | |
| CVE-2021-47583 | Linux kernel 安全漏洞 | |
| CVE-2021-47579 | Linux kernel 安全漏洞 | |
| CVE-2021-47580 | Linux kernel 安全漏洞 | |
| CVE-2021-47578 | Linux kernel 安全漏洞 | |
| CVE-2021-47576 | Linux kernel安全漏洞 | |
| CVE-2021-47577 | Linux kernel 安全漏洞 | |
| CVE-2024-38617 | Linux kernel 安全漏洞 | |
| CVE-2024-38618 | Linux kernel 安全漏洞 | |
| CVE-2024-38616 | Linux kernel 安全漏洞 | |
| CVE-2024-38615 | Linux kernel 安全漏洞 | |
| CVE-2024-38614 | Linux kernel安全漏洞 | |
| CVE-2024-38613 | Linux kernel安全漏洞 | |
| CVE-2024-38603 | Linux kernel 安全漏洞 | |
| CVE-2024-38601 | Linux kernel 安全漏洞 | |
| CVE-2024-38600 | Linux kernel 安全漏洞 | |
| CVE-2024-38602 | Linux kernel 安全漏洞 |
显示前 20 条，共 122 条。 查看全部 → →
IV. Related Vulnerabilities
V. Comments for CVE-2024-38610
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