جزئیات آسیب‌پذیری
CVE-2026-64106
KVM: arm64: vgic-its: Reject restored DTE with out-of-range num_eventid_bits
شرح رسمی (انگلیسی)
In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: vgic-its: Reject restored DTE with out-of-range num_eventid_bits Userspace can restore an ITS Device Table Entry whose Size field encodes more EventID bits than the virtual ITS supports. The live MAPD path rejects that state, but vgic_its_restore_dte() accepts it and stores the out-of-range value in dev->num_eventid_bits. Reject restored DTEs with num_eventid_bits > VITS_TYPER_IDBITS before allocating the device. This mirrors the MAPD check and prevents the restored state from reaching vgic_its_restore_itt(), where the unchecked value can be converted into an oversized scan_its_table() range.
امتیازهای CVSS
| امتیاز | نسخه | منبع | بردار |
|---|---|---|---|
| 9.0بحرانی | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:H |
محصولات آسیب‌پذیر
| فروشنده | محصول | نسخه‌ها | منبع |
|---|---|---|---|
| Linux | Linux | 4.12 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 57a9a117154c93539e33161dd318e6aeb8c04efa ≤ v < dab9f93251b2c86a033de6098d0c73afddd55d4a | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 57a9a117154c93539e33161dd318e6aeb8c04efa ≤ v < b94538186a3eae3763b8f96dacd610920a865aa7 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 57a9a117154c93539e33161dd318e6aeb8c04efa ≤ v < 1716b7fea2ead941a0dfac06c4504a3437cdf00d | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 57a9a117154c93539e33161dd318e6aeb8c04efa ≤ v < 8bcd15b690a390241179516af1b6ae49ebfd9d95 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 57a9a117154c93539e33161dd318e6aeb8c04efa ≤ v < 9ce754ed8e7ab4e3999767ce1505f85c449ccb07 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | 57a9a117154c93539e33161dd318e6aeb8c04efa ≤ v < 0680f511926589206f81f57f76ce131d7741a316 | CVEProject cvelistV5 (CNA) |
منابع و راهنماها
۶- https://git.kernel.org/stable/c/1716b7fea2ead941a0dfac06c4504a3437cdf00d
- https://git.kernel.org/stable/c/dab9f93251b2c86a033de6098d0c73afddd55d4a
- https://git.kernel.org/stable/c/b94538186a3eae3763b8f96dacd610920a865aa7
- https://git.kernel.org/stable/c/0680f511926589206f81f57f76ce131d7741a316
- https://git.kernel.org/stable/c/8bcd15b690a390241179516af1b6ae49ebfd9d95
- https://git.kernel.org/stable/c/9ce754ed8e7ab4e3999767ce1505f85c449ccb07
اطلاعات
- تاریخ انتشار
- ۱۴۰۵/۰۴/۲۸
- آخرین به‌روزرسانی
- ۱۴۰۵/۰۷/۲۷
- وضعیت
- منتشرشده
- صادرکننده (CNA)
- Linux
پیش‌بینی بهره‌برداری (EPSS)
ارزیابی SSVC (CISA)
- قابل خودکارسازی
- خیر
- وضعیت بهره‌برداری
- ندارد
- اثر فنی
- جزئی
ضعف‌ها (CWE)
- CWE-20Improper Input Validation