Yüksek CVSS 7.8
CVE-2024-49982: Linux Kernel: serbest bırakılmış belleğin kullanımı
Açıklama (NVD)
In the Linux kernel, the following vulnerability has been resolved: aoe: fix the potential use-after-free problem in more places For fixing CVE-2023-6270, f98364e92662 ("aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts") makes tx() calling dev_put() instead of doing in aoecmd_cfg_pkts(). It avoids that the tx() runs into use-after-free. Then Nicolai Stange found more places in aoe have potential use-after-free problem with tx(). e.g. revalidate(), aoecmd_ata_rw(), resend(), probe() and aoecmd_cfg_rsp(). Those functions also use aoenet_xmit() to push packet to tx queue. So they should also use dev_hold() to increase the refcnt of skb->dev. On the other hand, moving dev_put() to tx() causes that the refcnt of skb->dev be reduced to a negative value, because corresponding dev_hold() are not called in revalidate(), aoecmd_ata_rw(), resend(), probe(), and aoecmd_cfg_rsp(). This patch fixed this issue.
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
- %0,38 (yüzdelik 32)
- CWE
- CWE-416
- Yama
- Mevcut
Etkilenen sürümler
| Ürün | Başlangıç | Bitiş | Düzeltildi |
|---|---|---|---|
| linux-linux-kernel | 5.10.214 | — | 5.10.227 |
| linux-linux-kernel | 5.15.153 | — | 5.15.168 |
| linux-linux-kernel | 6.1.83 | — | 6.1.113 |
| linux-linux-kernel | 6.6.23 | — | 6.6.55 |
| linux-linux-kernel | 6.7.11 | — | 6.8.2 |
| linux-linux-kernel | 6.9 | — | 6.10.14 |
| linux-linux-kernel | 6.11 | — | 6.11.3 |
| linux-linux-kernel | 4.19.311 | 4.19.311 | — |
| linux-linux-kernel | 5.4.273 | 5.4.273 | — |
| linux-linux-kernel | 6.12 | 6.12 | — |