جزئیات آسیب‌پذیری
CVE-2026-80724
Linux Linux
ptp: vmclock: prevent read-only mappings from becoming writable
CVSS 3.1
8.8بالا
شرح رسمی (انگلیسی)
In the Linux kernel, the following vulnerability has been resolved: ptp: vmclock: prevent read-only mappings from becoming writable vmclock_miscdev_mmap() rejects writable mappings of the shared vmclock ABI page with -EROFS, but leaves VM_MAYWRITE set. Userspace can map the page read-only and then upgrade it to writable with mprotect(), after which the guest can corrupt the host-written timekeeping data (sequence counter, UTC time, TSC offset) that the vmclock ABI defines as read-only. Clear VM_MAYWRITE on the read-only path so the mapping cannot be upgraded, as i915 does for its read-only objects and as fixed in drm/vc4 (CVE-2026-68445) and drm/panthor (CVE-2024-53071).
امتیازهای CVSS
| امتیاز | نسخه | منبع | بردار |
|---|---|---|---|
| 8.8بالا | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H |
محصولات آسیب‌پذیر
| فروشنده | محصول | نسخه‌ها | منبع |
|---|---|---|---|
| Linux | Linux | 6.13 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 20503272422693d793b84f88bf23fe4e955d3a33 ≤ v < 3f5677d2f817355147337f0453174c7bb0f3b66a | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 20503272422693d793b84f88bf23fe4e955d3a33 ≤ v < 2496e141827102d6af512950057d402a2cfb2bfc | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 20503272422693d793b84f88bf23fe4e955d3a33 ≤ v < 5b4f2bec7bea6c04084d720d731bedee7caf878d | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 20503272422693d793b84f88bf23fe4e955d3a33 ≤ v < 0ce59c4148ecd1520c5592a63bb3c8991ee2d326 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 20503272422693d793b84f88bf23fe4e955d3a33 ≤ v < a5edadbae57e2298a56cf7a4e774a027905a331f | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 20503272422693d793b84f88bf23fe4e955d3a33 ≤ v < 2e596e7814ba38cdc129991058b6c254ed37cb11 | CVEProject cvelistV5 (CNA) |
منابع و راهنماها
۶- https://git.kernel.org/stable/c/5b4f2bec7bea6c04084d720d731bedee7caf878d
- https://git.kernel.org/stable/c/3f5677d2f817355147337f0453174c7bb0f3b66a
- https://git.kernel.org/stable/c/2496e141827102d6af512950057d402a2cfb2bfc
- https://git.kernel.org/stable/c/2e596e7814ba38cdc129991058b6c254ed37cb11
- https://git.kernel.org/stable/c/0ce59c4148ecd1520c5592a63bb3c8991ee2d326
- https://git.kernel.org/stable/c/a5edadbae57e2298a56cf7a4e774a027905a331f
هشدار CVEهای بعدی این محصولمحصول را دنبال کنید تا آسیب‌پذیری‌های تازه را در تلگرام بگیرید.
اطلاعات
- تاریخ انتشار
- ۱۴۰۵/۰۶/۰۶
- آخرین به‌روزرسانی
- ۱۴۰۵/۰۷/۲۷
- وضعیت
- منتشرشده
- صادرکننده (CNA)
- Linux
پیش‌بینی بهره‌برداری (EPSS)
۰٫۱۷٪
احتمال بهره‌برداری در ۳۰ روز
۷٫۱٪
صدک (نسبت به همه‌ی CVEها)
ضعف‌ها (CWE)
- —