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CVE-2026-31394

In the Linux kernel, the following vulnerability has been resolved: mac80211: fix crash in ieee80211_chan_bw_change for AP_VLAN stations ieee80211_chan_bw_change() iterates all stations and accesses link->reserved.oper via sta->sdata->link[link_id]. For stations on AP_VLAN interfaces (e.g. 4addr WDS clients), sta->sdata points to the VLAN sdata, whose link never participates in chanctx reservations. This leaves link->reserved.oper zero-initialized with chan == NULL, causing a NULL pointer dere
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:39709edea8c0764738ecd21d7bc25abd660b0f45ed90ff460601fbe85e51360c
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["net/mac80211/chan.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.11"},{"lessThan":"6.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.78","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.20","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.10","versionType":"semver"},{"lessThanOr…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0c9d80c394477f7695b080d380cdb7a6761facd3779ead646f156f8791e7a37c · sha256:be73147fce1e7aca… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/mac80211/chan.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"65c25b588994dd422fea73fa322de56e1ae4a33b","status":"affected","version":"b27512368591fc959768df1f7dacf2a96b1bd036","versionType":"git"},{"lessThan":"5a86d4e920d9783a198e39cf53f0e410fba5fbd6","status":"affected","version":"b27512368591fc959768df1f7dacf2a96b1bd036","versionType":"git"},{"lessThan":"3c6629e859a2211a1fbb4868f915413f80001ca5","status":"affected","version":"b27512368591fc959768df1f7d…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0c9d80c394477f7695b080d380cdb7a6761facd3779ead646f156f8791e7a37c · sha256:be73147fce1e7aca… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["net/mac80211/chan.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.11"},{"lessThan":"6.11","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.78","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.20","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.10","versionType":"semver"},{"lessThanOr…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0c9d80c394477f7695b080d380cdb7a6761facd3779ead646f156f8791e7a37c · sha256:be73147fce1e7aca… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["net/mac80211/chan.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"65c25b588994dd422fea73fa322de56e1ae4a33b","status":"affected","version":"b27512368591fc959768df1f7dacf2a96b1bd036","versionType":"git"},{"lessThan":"5a86d4e920d9783a198e39cf53f0e410fba5fbd6","status":"affected","version":"b27512368591fc959768df1f7dacf2a96b1bd036","versionType":"git"},{"lessThan":"3c6629e859a2211a1fbb4868f915413f80001ca5","status":"affected","version":"b27512368591fc959768df1f7d…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:0c9d80c394477f7695b080d380cdb7a6761facd3779ead646f156f8791e7a37c · sha256:be73147fce1e7aca… · /containers/cna/affected/0

Source references

4 source assertions
{"url":"https://git.kernel.org/stable/c/3c6629e859a2211a1fbb4868f915413f80001ca5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0c9d80c394477f7695b080d380cdb7a6761facd3779ead646f156f8791e7a37c · sha256:be73147fce1e7aca… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/5a86d4e920d9783a198e39cf53f0e410fba5fbd6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0c9d80c394477f7695b080d380cdb7a6761facd3779ead646f156f8791e7a37c · sha256:be73147fce1e7aca… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/65c25b588994dd422fea73fa322de56e1ae4a33b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0c9d80c394477f7695b080d380cdb7a6761facd3779ead646f156f8791e7a37c · sha256:be73147fce1e7aca… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/672e5229e1ecfc2a3509b53adcb914d8b024a853"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:0c9d80c394477f7695b080d380cdb7a6761facd3779ead646f156f8791e7a37c · sha256:be73147fce1e7aca… · /containers/cna/references/3

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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