Orta CVSS 5.5
CVE-2025-38086: Linux Kernel: güvenlik açığı
Açıklama (NVD)
In the Linux kernel, the following vulnerability has been resolved: net: ch9200: fix uninitialised access during mii_nway_restart In mii_nway_restart() the code attempts to call mii->mdio_read which is ch9200_mdio_read(). ch9200_mdio_read() utilises a local buffer called "buff", which is initialised with control_read(). However "buff" is conditionally initialised inside control_read(): if (err == size) { memcpy(data, buf, size); } If the condition of "err == size" is not met, then "buff" remains uninitialised. Once this happens the uninitialised "buff" is accessed and returned during ch9200_mdio_read(): return (buff[0] | buff[1] << 8); The problem stems from the fact that ch9200_mdio_read() ignores the return value of control_read(), leading to uinit-access of "buff". To fix this we should check the return value of control_read() and return early on error.
Özet bilgiler
- Ürün
- Linux Linux Kernel
- CVSS v3.1
- 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS
- %0,21 (yüzdelik 11)
- CWE
- CWE-908
- Yama
- Mevcut
Etkilenen sürümler
| Ürün | Başlangıç | Bitiş | Düzeltildi |
|---|---|---|---|
| linux-linux-kernel | 4.3.1 | — | 5.4.295 |
| linux-linux-kernel | 5.5 | — | 5.10.239 |
| linux-linux-kernel | 5.11 | — | 5.15.186 |
| linux-linux-kernel | 5.16 | — | 6.1.142 |
| linux-linux-kernel | 6.2 | — | 6.6.95 |
| linux-linux-kernel | 6.7 | — | 6.12.35 |
| linux-linux-kernel | 6.13 | — | 6.15.4 |
| linux-linux-kernel | 4.3 | 4.3 | — |
| linux-linux-kernel | 4.3 | 4.3 | — |
| linux-linux-kernel | 4.3 | 4.3 | — |
| linux-linux-kernel | 4.3 | 4.3 | — |
| linux-linux-kernel | 4.3 | 4.3 | — |
| linux-linux-kernel | 4.3 | 4.3 | — |
| debian-debian-linux | 11.0 | 11.0 | — |