CVSS 7.8 · High EPSS 0,31%
Kerentanan Use After Free pada linux kernel. Skor CVSS 3.1 7.8 (High) menurut NVD.
In the Linux kernel, the following vulnerability has been resolved: aoe: fix the potential use-after-free problem in aoecmd_cfg_pkts This patch is against CVE-2023-6270. The description of cve is: A flaw was found in the ATA over Ethernet (AoE) driver in the Linux kernel. The aoecmd_cfg_pkts() function improperly updates the refcnt on `struct net_device`, and a use-after-free can be triggered by racing between the free on the struct and the access through the `skbtxq` global queue. This could lead to a denial of service condition or potential code execution. In aoecmd_cfg_pkts(), it always calls dev_put(ifp) when skb initial code is finished. But the net_device ifp will still be used in later tx()->dev_queue_xmit() in kthread. Which means that the dev_put(ifp) should NOT be called in the success path of skb initial code in aoecmd_cfg_pkts(). Otherwise tx() may run into use-after-free because the net_device is freed. This patch removed the dev_put(ifp) in the success path in aoecmd_cfg_pkts(), and added dev_put() after skb xmit in tx().
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linux | linux kernel | Versi 2.6.22 hingga sebelum 4.19.311 |
| linux | linux kernel | Versi 4.20 hingga sebelum 5.4.273 |
| linux | linux kernel | Versi 5.5 hingga sebelum 5.10.214 |
| linux | linux kernel | Versi 5.11 hingga sebelum 5.15.153 |
| linux | linux kernel | Versi 5.16 hingga sebelum 6.1.83 |
| linux | linux kernel | Versi 6.2 hingga sebelum 6.6.23 |
| linux | linux kernel | Versi 6.7 hingga sebelum 6.7.11 |
| linux | linux kernel | Versi 6.8 hingga sebelum 6.8.2 |