Yüksek CVSS 7.8
CVE-2023-53515: Linux Kernel: serbest bırakılmış belleğin kullanımı
Açıklama (NVD)
In the Linux kernel, the following vulnerability has been resolved: virtio-mmio: don't break lifecycle of vm_dev vm_dev has a separate lifecycle because it has a 'struct device' embedded. Thus, having a release callback for it is correct. Allocating the vm_dev struct with devres totally breaks this protection, though. Instead of waiting for the vm_dev release callback, the memory is freed when the platform_device is removed. Resulting in a use-after-free when finally the callback is to be called. To easily see the problem, compile the kernel with CONFIG_DEBUG_KOBJECT_RELEASE and unbind with sysfs. The fix is easy, don't use devres in this case. Found during my research about object lifetime problems.
Özet bilgiler
- Ürün
- Linux Linux Kernel
- CVSS v3.1
- 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS
- %0,15 (yüzdelik 4)
- CWE
- CWE-416
- Yama
- Mevcut
Etkilenen sürümler
| Ürün | Başlangıç | Bitiş | Düzeltildi |
|---|---|---|---|
| linux-linux-kernel | 4.15.1 | — | 4.19.293 |
| linux-linux-kernel | 4.20 | — | 5.4.255 |
| linux-linux-kernel | 5.5 | — | 5.10.192 |
| linux-linux-kernel | 5.11 | — | 5.15.128 |
| linux-linux-kernel | 5.16 | — | 6.1.47 |
| linux-linux-kernel | 6.2 | — | 6.4.12 |
| linux-linux-kernel | 4.15 | 4.15 | — |
| linux-linux-kernel | 4.15 | 4.15 | — |
| linux-linux-kernel | 4.15 | 4.15 | — |
| linux-linux-kernel | 4.15 | 4.15 | — |
| linux-linux-kernel | 4.15 | 4.15 | — |
| linux-linux-kernel | 4.15 | 4.15 | — |
| linux-linux-kernel | 4.15 | 4.15 | — |
| linux-linux-kernel | 4.15 | 4.15 | — |
| linux-linux-kernel | 6.5 | 6.5 | — |
| linux-linux-kernel | 6.5 | 6.5 | — |
| linux-linux-kernel | 6.5 | 6.5 | — |
| linux-linux-kernel | 6.5 | 6.5 | — |
| linux-linux-kernel | 6.5 | 6.5 | — |
| linux-linux-kernel | 6.5 | 6.5 | — |