#VU104416 Use-after-free in Linux kernel - CVE-2022-49479
Published: February 26, 2025 / Updated: May 11, 2025
Linux kernel
Linux Foundation
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the mt76_tx_status_skb_add() function in drivers/net/wireless/mediatek/mt76/tx.c, within the mt76_sta_pre_rcu_remove() function in drivers/net/wireless/mediatek/mt76/mac80211.c. A local user can escalate privileges on the system.
Remediation
External links
- https://git.kernel.org/stable/c/ddd426d72aca4054045a9bd3b80a4ce1d398f11f
- https://git.kernel.org/stable/c/ef7f9f894cfd0b2e471206409a529af4a26ddd55
- https://git.kernel.org/stable/c/fcfe1b5e162bf473c1d47760962cec8523c00466
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.14
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.18.3
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19