#VU104459 Use-after-free in Linux kernel - CVE-2022-49328
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_txq_stopped() and mt76_txq_schedule_list() functions in drivers/net/wireless/mediatek/mt76/tx.c, within the mt7921_add_interface() function in drivers/net/wireless/mediatek/mt76/mt7921/main.c, within the mt7915_add_interface() function in drivers/net/wireless/mediatek/mt76/mt7915/main.c, within the mt76x02_vif_init() and mt76x02_remove_interface() functions in drivers/net/wireless/mediatek/mt76/mt76x02_util.c, within the mt7615_add_interface() function in drivers/net/wireless/mediatek/mt76/mt7615/main.c, within the mt7603_add_interface() function in drivers/net/wireless/mediatek/mt76/mt7603/main.c, within the mt76_sta_add() 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/4448327b41738dbfcda680eb4935ff835568f468
- https://git.kernel.org/stable/c/51fb1278aa57ae0fc54adaa786e1965362bed4fb
- https://git.kernel.org/stable/c/d5f77f1dbb59feae81f88e44551e8e1d8a802d9a
- https://git.kernel.org/stable/c/e55bcdd0bf34a8b10d45ce80ebb3164c5292a17d
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.14