CVE-2022-49416 (GCVE-0-2022-49416)
Vulnerability from cvelistv5
Published
2025-02-26 02:12
Modified
2026-05-11 18:59
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix use-after-free in chanctx code In ieee80211_vif_use_reserved_context(), when we have an old context and the new context's replace_state is set to IEEE80211_CHANCTX_REPLACE_NONE, we free the old context in ieee80211_vif_use_reserved_reassign(). Therefore, we cannot check the old_ctx anymore, so we should set it to NULL after this point. However, since the new_ctx replace state is clearly not IEEE80211_CHANCTX_REPLACES_OTHER, we're not going to do anything else in this function and can just return to avoid accessing the freed old_ctx.
References
Impacted products
Vendor Product Version
Linux Linux Version: 5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f
Version: 5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f
Version: 5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f
Version: 5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f
Version: 5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f
Version: 5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f
Version: 5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f
Version: 5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f
Version: 5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f
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