CVE-2024-49937

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Source
https://cve.org/CVERecord?id=CVE-2024-49937
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-49937.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2024-49937
Downstream
Related
Published
2024-10-21T18:01:57.730Z
Modified
2026-03-11T07:53:46.296946Z
Summary
wifi: cfg80211: Set correct chandef when starting CAC
Details

In the Linux kernel, the following vulnerability has been resolved:

wifi: cfg80211: Set correct chandef when starting CAC

When starting CAC in a mode other than AP mode, it return a "WARNING: CPU: 0 PID: 63 at cfg80211chandefdfs_usable+0x20/0xaf [cfg80211]" caused by the chandef.chan being null at the end of CAC.

Solution: Ensure the channel definition is set for the different modes when starting CAC to avoid getting a NULL 'chan' at the end of CAC.

Call Trace: ? show_regs.part.0+0x14/0x16 ? __warn+0x67/0xc0 ? cfg80211chandefdfsusable+0x20/0xaf [cfg80211] ? reportbug+0xa7/0x130 ? excoverflow+0x30/0x30 ? handlebug+0x27/0x50 ? excinvalidop+0x18/0x60 ? handleexception+0xf6/0xf6 ? excoverflow+0x30/0x30 ? cfg80211chandefdfsusable+0x20/0xaf [cfg80211] ? excoverflow+0x30/0x30 ? cfg80211chandefdfsusable+0x20/0xaf [cfg80211] ? regulatorypropagatedfsstate.cold+0x1b/0x4c [cfg80211] ? cfg80211propagatecacdonewk+0x1a/0x30 [cfg80211] ? processonework+0x165/0x280 ? workerthread+0x120/0x3f0 ? kthread+0xc2/0xf0 ? processonework+0x280/0x280 ? kthreadcompleteandexit+0x20/0x20 ? retfromfork+0x19/0x24

[shorten subject, remove OCB, reorder cases to match previous list]

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/49xxx/CVE-2024-49937.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
7b0a0e3c3a88260b6fcb017e49f198463aa62ed1
Fixed
95f32191e50b75e0f75fae1bb925cdf51d8df0a3
Fixed
04053e55dd50741cf6c59b9bbaa4238218c05c70
Fixed
f4dbfda159e43d49b43003cc3c2914751939035f
Fixed
c628026563f4ea9e0413dd4b69429e4a1db240b1
Fixed
20361712880396e44ce80aaeec2d93d182035651
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
7a53ad13c09150076b7ddde96c2dfc5622c90b45

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2024-49937.json"