Orta CVSS 5.5
CVE-2025-21694: Linux Kernel: güvenlik açığı
Açıklama (NVD)
In the Linux kernel, the following vulnerability has been resolved: fs/proc: fix softlockup in __read_vmcore (part 2) Since commit 5cbcb62dddf5 ("fs/proc: fix softlockup in __read_vmcore") the number of softlockups in __read_vmcore at kdump time have gone down, but they still happen sometimes. In a memory constrained environment like the kdump image, a softlockup is not just a harmless message, but it can interfere with things like RCU freeing memory, causing the crashdump to get stuck. The second loop in __read_vmcore has a lot more opportunities for natural sleep points, like scheduling out while waiting for a data write to happen, but apparently that is not always enough. Add a cond_resched() to the second loop in __read_vmcore to (hopefully) get rid of the softlockups.
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
- %0,24 (yüzdelik 15)
- Yama
- Mevcut
Etkilenen sürümler
| Ürün | Başlangıç | Bitiş | Düzeltildi |
|---|---|---|---|
| linux-linux-kernel | 4.19.317 | — | 4.20 |
| linux-linux-kernel | 5.4.279 | — | 5.4.290 |
| linux-linux-kernel | 5.10.221 | — | 5.10.234 |
| linux-linux-kernel | 5.15.162 | — | 5.15.177 |
| linux-linux-kernel | 6.1.95 | — | 6.1.127 |
| linux-linux-kernel | 6.6.35 | — | 6.6.74 |
| linux-linux-kernel | 6.9.6 | — | 6.12.11 |
| linux-linux-kernel | 6.13 | 6.13 | — |
| linux-linux-kernel | 6.13 | 6.13 | — |
| linux-linux-kernel | 6.13 | 6.13 | — |
| linux-linux-kernel | 6.13 | 6.13 | — |
| linux-linux-kernel | 6.13 | 6.13 | — |
| linux-linux-kernel | 6.13 | 6.13 | — |
| linux-linux-kernel | 6.13 | 6.13 | — |