CVE-2022-49942
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2022
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
wifi: mac80211: Don't finalize CSA in IBSS mode if state is disconnected
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: Don't finalize CSA in IBSS mode if state is disconnected When we are not connected to a channel, sending channel "switch" announcement doesn't make any sense. The BSS list is empty in that case. This causes the for loop in cfg80211_get_bss() to be bypassed, so the function returns NULL (check line 1424 of net/wireless/scan.c), causing the WARN_ON() in ieee80211_ibss_csa_beacon() to get triggered (check line 500 of net/mac80211/ibss.c), which was consequently reported on the syzkaller dashboard. Thus, check if we have an existing connection before generating the CSA beacon in ieee80211_ibss_finish_csa().
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| cd7760e62c2ac8581f050b2d36501d1a60beaf83 | affected | git | cdb9a8da9b84800eb15506cd9363cf0cf059e677 | Unavailable | None listed |
| cd7760e62c2ac8581f050b2d36501d1a60beaf83 | affected | git | 1691a48aef0a82d1754b9853dae7e3f5cacdf70b | Unavailable | None listed |
| cd7760e62c2ac8581f050b2d36501d1a60beaf83 | affected | git | d9eb37db6a28b59a95a3461450ee209654c5f95b | Unavailable | None listed |
| cd7760e62c2ac8581f050b2d36501d1a60beaf83 | affected | git | 66689c5c02acd4d76c28498fe220998610aec61e | Unavailable | None listed |
| cd7760e62c2ac8581f050b2d36501d1a60beaf83 | affected | git | dd649b49219a0388cc10fc40e4c2ea681566a780 | Unavailable | None listed |
| cd7760e62c2ac8581f050b2d36501d1a60beaf83 | affected | git | 552ba102a6898630a7d16887f29e606d6fabe508 | Unavailable | None listed |
| cd7760e62c2ac8581f050b2d36501d1a60beaf83 | affected | git | 864e280cb3a9a0f5212b16ef5057c4e692f7039d | Unavailable | None listed |
| cd7760e62c2ac8581f050b2d36501d1a60beaf83 | affected | git | 15bc8966b6d3a5b9bfe4c9facfa02f2b69b1e5f0 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 3.13 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.13 | Unavailable | None listed |
| 4.9.328 | unaffected | semver | Unavailable | 4.9.* | None listed |
| 4.14.293 | unaffected | semver | Unavailable | 4.14.* | None listed |
| 4.19.258 | unaffected | semver | Unavailable | 4.19.* | None listed |
| 5.4.213 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.142 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.66 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 5.19.8 | unaffected | semver | Unavailable | 5.19.* | None listed |
| 6.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |