Answer in brief
CVE-2022-49416 records a High severity (CVSS 8.8) vulnerability in wifi: mac80211: fix use-after-free in chanctx code. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2022-49416 records a High severity (CVSS 8.8) vulnerability in wifi: mac80211: fix use-after-free in chanctx code. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <88cc8f963febe192d6ded9df7217f92f380b449a || >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <4ba81e794f0fad6234f644c2da1ae14d5b95e1c4 || >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <9f1e5cc85ad77e52f54049a94db0407445ae2a34 || >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <265bec4779a38b65e86a25120370f200822dfa76 || >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <6118bbdf69f4718b02d26bbcf2e497eb66004331 || >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <b79110f2bf6022e60e590d2e094728a8eec3e79e || >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <82c8e7bbdd06c7ed58e22450cc5b37f33a25bb2c || >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <4f05a9e15edcdf5b97e0d86ab6ecd5f187289f6c || >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <2965c4cdf7ad9ce0796fac5e57debb9519ea721e | 88cc8f963febe192d6ded9df7217f92f380b449a, 4ba81e794f0fad6234f644c2da1ae14d5b95e1c4, 9f1e5cc85ad77e52f54049a94db0407445ae2a34, 265bec4779a38b65e86a25120370f200822dfa76, 6118bbdf69f4718b02d26bbcf2e497eb66004331, b79110f2bf6022e60e590d2e094728a8eec3e79e, 82c8e7bbdd06c7ed58e22450cc5b37f33a25bb2c, 4f05a9e15edcdf5b97e0d86ab6ecd5f187289f6c, 2965c4cdf7ad9ce0796fac5e57debb9519ea721e |
| Linux/Linuxgeneric | 3.17 | Not reported |
Published upstream
Feb 26, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
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.
Quoted source text, attributed separately from HOL analysis.
CVSS is 8.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <88cc8f963febe192d6ded9df7217f92f380b449a || >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <4ba81e794f0fad6234f644c2da1ae14d5b95e1c4 || >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <9f1e5cc85ad77e52f54049a94db0407445ae2a34 || >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <265bec4779a38b65e86a25120370f200822dfa76 || >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <6118bbdf69f4718b02d26bbcf2e497eb66004331 || >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <b79110f2bf6022e60e590d2e094728a8eec3e79e || >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <82c8e7bbdd06c7ed58e22450cc5b37f33a25bb2c || >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <4f05a9e15edcdf5b97e0d86ab6ecd5f187289f6c || >=5bcae31d9cb1ebfad3ad5a3eea04c8cdc329a04f <2965c4cdf7ad9ce0796fac5e57debb9519ea721e | 88cc8f963febe192d6ded9df7217f92f380b449a, 4ba81e794f0fad6234f644c2da1ae14d5b95e1c4, 9f1e5cc85ad77e52f54049a94db0407445ae2a34, 265bec4779a38b65e86a25120370f200822dfa76, 6118bbdf69f4718b02d26bbcf2e497eb66004331, b79110f2bf6022e60e590d2e094728a8eec3e79e, 82c8e7bbdd06c7ed58e22450cc5b37f33a25bb2c, 4f05a9e15edcdf5b97e0d86ab6ecd5f187289f6c, 2965c4cdf7ad9ce0796fac5e57debb9519ea721e |
| Linux/Linuxgeneric | 3.17 | Not reported |
Published upstream
Feb 26, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 4, 2026
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.
Quoted source text, attributed separately from HOL analysis.