// For flags

CVE-2024-47738

wifi: mac80211: don't use rate mask for offchannel TX either

Severity Score

"-"
*CVSS v-

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

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

wifi: mac80211: don't use rate mask for offchannel TX either

Like the commit ab9177d83c04 ("wifi: mac80211: don't use rate mask for
scanning"), ignore incorrect settings to avoid no supported rate warning
reported by syzbot.

The syzbot did bisect and found cause is commit 9df66d5b9f45 ("cfg80211:
fix default HE tx bitrate mask in 2G band"), which however corrects
bitmask of HE MCS and recognizes correctly settings of empty legacy rate
plus HE MCS rate instead of returning -EINVAL.

As suggestions [1], follow the change of SCAN TX to consider this case of
offchannel TX as well.

[1] https://lore.kernel.org/linux-wireless/6ab2dc9c3afe753ca6fdcdd1421e7a1f47e87b84.camel@sipsolutions.net/T/#m2ac2a6d2be06a37c9c47a3d8a44b4f647ed4f024

*Credits: N/A
CVSS Scores
Attack Vector
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Attack Complexity
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Privileges Required
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User Interaction
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Scope
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Confidentiality
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Integrity
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Availability
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* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-09-30 CVE Reserved
  • 2024-10-21 CVE Published
  • 2024-10-21 CVE Updated
  • 2024-10-22 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
Search vendor "Linux"
Linux Kernel
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>= 5.14 < 6.1.113
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en
Affected
Linux
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Linux Kernel
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>= 5.14 < 6.6.54
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.14 < 6.6.54"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
>= 5.14 < 6.10.13
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.14 < 6.10.13"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
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>= 5.14 < 6.11.2
Search vendor "Linux" for product "Linux Kernel" and version " >= 5.14 < 6.11.2"
en
Affected
Linux
Search vendor "Linux"
Linux Kernel
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>= 5.14 < 6.12-rc1
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en
Affected
Linux
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Linux Kernel
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5.10.51
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en
Affected
Linux
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Linux Kernel
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5.12.18
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en
Affected
Linux
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Linux Kernel
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5.13.3
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en
Affected