Orta CVSS 5.5
CVE-2025-39847: Linux Kernel: güvenlik açığı
Açıklama (NVD)
In the Linux kernel, the following vulnerability has been resolved: ppp: fix memory leak in pad_compress_skb If alloc_skb() fails in pad_compress_skb(), it returns NULL without releasing the old skb. The caller does: skb = pad_compress_skb(ppp, skb); if (!skb) goto drop; drop: kfree_skb(skb); When pad_compress_skb() returns NULL, the reference to the old skb is lost and kfree_skb(skb) ends up doing nothing, leading to a memory leak. Align pad_compress_skb() semantics with realloc(): only free the old skb if allocation and compression succeed. At the call site, use the new_skb variable so the original skb is not lost when pad_compress_skb() fails.
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
- %0,16 (yüzdelik 6)
- CWE
- CWE-401
- Yama
- Mevcut
Etkilenen sürümler
| Ürün | Başlangıç | Bitiş | Düzeltildi |
|---|---|---|---|
| linux-linux-kernel | 2.6.15 | — | 5.4.299 |
| linux-linux-kernel | 5.5 | — | 5.10.243 |
| linux-linux-kernel | 5.11 | — | 5.15.192 |
| linux-linux-kernel | 5.16 | — | 6.1.151 |
| linux-linux-kernel | 6.2 | — | 6.6.105 |
| linux-linux-kernel | 6.7 | — | 6.12.46 |
| linux-linux-kernel | 6.13 | — | 6.16.6 |
| linux-linux-kernel | 6.17 | 6.17 | — |
| linux-linux-kernel | 6.17 | 6.17 | — |
| linux-linux-kernel | 6.17 | 6.17 | — |
| linux-linux-kernel | 6.17 | 6.17 | — |
| debian-debian-linux | 11.0 | 11.0 | — |