CVSS 5.5 · Medium EPSS 0,22%
Kerentanan pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.
In the Linux kernel, the following vulnerability has been resolved: batman-adv: fix panic during interface removal Reference counting is used to ensure that batadv_hardif_neigh_node and batadv_hard_iface are not freed before/during batadv_v_elp_throughput_metric_update work is finished. But there isn't a guarantee that the hard if will remain associated with a soft interface up until the work is finished. This fixes a crash triggered by reboot that looks like this: Call trace: batadv_v_mesh_free+0xd0/0x4dc [batman_adv] batadv_v_elp_throughput_metric_update+0x1c/0xa4 process_one_work+0x178/0x398 worker_thread+0x2e8/0x4d0 kthread+0xd8/0xdc ret_from_fork+0x10/0x20 (the batadv_v_mesh_free call is misleading, and does not actually happen) I was able to make the issue happen more reliably by changing hardif_neigh->bat_v.metric_work work to be delayed work. This allowed me to track down and confirm the fix. [sven@narfation.org: prevent entering batadv_v_elp_get_throughput without soft_iface]
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
· uraikan di kalkulator | Vendor | Produk | Versi terdampak |
|---|---|---|
| linux | linux kernel | Versi 4.6 hingga sebelum 5.4.291 |
| linux | linux kernel | Versi 5.5 hingga sebelum 5.10.235 |
| linux | linux kernel | Versi 5.11 hingga sebelum 5.15.179 |
| linux | linux kernel | Versi 5.16 hingga sebelum 6.1.129 |
| linux | linux kernel | Versi 6.2 hingga sebelum 6.6.79 |
| linux | linux kernel | Versi 6.7 hingga sebelum 6.12.16 |
| linux | linux kernel | Versi 6.13 hingga sebelum 6.13.4 |
| linux | linux kernel | Versi 6.14 rc1 |
| linux | linux kernel | Versi 6.14 rc2 |