wifi: mac80211: fix race condition on enabling fast-xmit
Summary
| CVE | CVE-2024-26779 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2024-04-03 17:15:53 UTC |
| Updated | 2026-08-04 11:17:03 UTC |
| Description | In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211: fix race condition on enabling fast-xmit fast-xmit must only be enabled after the sta has been uploaded to the driver, otherwise it could end up passing the not-yet-uploaded sta via drv_tx calls to the driver, leading to potential crashes because of uninitialized drv_priv data. Add a missing sta->uploaded check and re-check fast xmit after inserting a sta. |
Risk And Classification
Primary CVSS: v3.1 5.5 MEDIUM from ADP
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Problem Types: CWE-362 | CWE-362 CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | ADP | DECLARED | 5.5 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| 3.1 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | Secondary | 8.8 | HIGH | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | Secondary | 5.5 | MEDIUM | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| 3.1 | CNA | DECLARED | 8.8 | HIGH | CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
NoneIntegrity
NoneAvailability
HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Linux | Linux Kernel | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 17c18bf880b2464851e5a2bca86521affc46c97e 76fad1174a0cae6fc857b9f88b261a2e4f07d587 git | Not specified |
| CNA | Linux | Linux | affected 17c18bf880b2464851e5a2bca86521affc46c97e 85720b69aef177318f4a18efbcc4302228a340e5 git | Not specified |
| CNA | Linux | Linux | affected 17c18bf880b2464851e5a2bca86521affc46c97e 5ffab99e070b9f8ae0cf60c3c3602b84eee818dd git | Not specified |
| CNA | Linux | Linux | affected 17c18bf880b2464851e5a2bca86521affc46c97e 88c18fd06608b3adee547102505d715f21075c9d git | Not specified |
| CNA | Linux | Linux | affected 17c18bf880b2464851e5a2bca86521affc46c97e eb39bb548bf974acad7bd6780fe11f9e6652d696 git | Not specified |
| CNA | Linux | Linux | affected 17c18bf880b2464851e5a2bca86521affc46c97e 54b79d8786964e2f840e8a2ec4a9f9a50f3d4954 git | Not specified |
| CNA | Linux | Linux | affected 17c18bf880b2464851e5a2bca86521affc46c97e 281280276b70c822f55ce15b661f6d1d3228aaa9 git | Not specified |
| CNA | Linux | Linux | affected 17c18bf880b2464851e5a2bca86521affc46c97e bcbc84af1183c8cf3d1ca9b78540c2185cd85e7f git | Not specified |
| CNA | Linux | Linux | affected 4.2 | Not specified |
| CNA | Linux | Linux | unaffected 4.2 semver | Not specified |
| CNA | Linux | Linux | unaffected 4.19.308 4.19.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.4.270 5.4.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.211 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.150 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.80 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.19 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.7.7 6.7.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.8 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| wifi: mac80211: fix race condition on enabling fast-xmit - kernel/git/stable/linux.git - Linux kernel stable tree | af854a3a-2127-422b-91ae-364da2661108 | git.kernel.org | Patch |
| lists.debian.org/debian-lts-announce/2024/06/msg00017.html | af854a3a-2127-422b-91ae-364da2661108 | lists.debian.org | Mailing List |
| wifi: mac80211: fix race condition on enabling fast-xmit - kernel/git/stable/linux.git - Linux kernel stable tree | af854a3a-2127-422b-91ae-364da2661108 | git.kernel.org | Patch |
| wifi: mac80211: fix race condition on enabling fast-xmit - kernel/git/stable/linux.git - Linux kernel stable tree | af854a3a-2127-422b-91ae-364da2661108 | git.kernel.org | Patch |
| wifi: mac80211: fix race condition on enabling fast-xmit - kernel/git/stable/linux.git - Linux kernel stable tree | af854a3a-2127-422b-91ae-364da2661108 | git.kernel.org | Patch |
| wifi: mac80211: fix race condition on enabling fast-xmit - kernel/git/stable/linux.git - Linux kernel stable tree | af854a3a-2127-422b-91ae-364da2661108 | git.kernel.org | Patch |
| wifi: mac80211: fix race condition on enabling fast-xmit - kernel/git/stable/linux.git - Linux kernel stable tree | af854a3a-2127-422b-91ae-364da2661108 | git.kernel.org | Patch |
| wifi: mac80211: fix race condition on enabling fast-xmit - kernel/git/stable/linux.git - Linux kernel stable tree | af854a3a-2127-422b-91ae-364da2661108 | git.kernel.org | Patch |
| lists.debian.org/debian-lts-announce/2024/06/msg00020.html | af854a3a-2127-422b-91ae-364da2661108 | lists.debian.org | Mailing List |
| wifi: mac80211: fix race condition on enabling fast-xmit - kernel/git/stable/linux.git - Linux kernel stable tree | af854a3a-2127-422b-91ae-364da2661108 | git.kernel.org | Patch |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 6000567 Debian Security Update for linux (DSA 5658-1)