CVE - CVE-2022-49416

CVE-ID
CVE-2022-49416	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
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
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/265bec4779a38b65e86a25120370f200822dfa76 URL:https://git.kernel.org/stable/c/265bec4779a38b65e86a25120370f200822dfa76 MISC:https://git.kernel.org/stable/c/2965c4cdf7ad9ce0796fac5e57debb9519ea721e URL:https://git.kernel.org/stable/c/2965c4cdf7ad9ce0796fac5e57debb9519ea721e MISC:https://git.kernel.org/stable/c/4ba81e794f0fad6234f644c2da1ae14d5b95e1c4 URL:https://git.kernel.org/stable/c/4ba81e794f0fad6234f644c2da1ae14d5b95e1c4 MISC:https://git.kernel.org/stable/c/4f05a9e15edcdf5b97e0d86ab6ecd5f187289f6c URL:https://git.kernel.org/stable/c/4f05a9e15edcdf5b97e0d86ab6ecd5f187289f6c MISC:https://git.kernel.org/stable/c/6118bbdf69f4718b02d26bbcf2e497eb66004331 URL:https://git.kernel.org/stable/c/6118bbdf69f4718b02d26bbcf2e497eb66004331 MISC:https://git.kernel.org/stable/c/82c8e7bbdd06c7ed58e22450cc5b37f33a25bb2c URL:https://git.kernel.org/stable/c/82c8e7bbdd06c7ed58e22450cc5b37f33a25bb2c MISC:https://git.kernel.org/stable/c/88cc8f963febe192d6ded9df7217f92f380b449a URL:https://git.kernel.org/stable/c/88cc8f963febe192d6ded9df7217f92f380b449a MISC:https://git.kernel.org/stable/c/9f1e5cc85ad77e52f54049a94db0407445ae2a34 URL:https://git.kernel.org/stable/c/9f1e5cc85ad77e52f54049a94db0407445ae2a34 MISC:https://git.kernel.org/stable/c/b79110f2bf6022e60e590d2e094728a8eec3e79e URL:https://git.kernel.org/stable/c/b79110f2bf6022e60e590d2e094728a8eec3e79e
Assigning CNA
kernel.org
Date Record Created
20250226	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250226)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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