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Vulnerability record · CVE-2024-47738 · published 21 October 2024

CVE-2024-47738: Linux kernel vulnerability

Linux · Linux Kernel

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/[email protected]/T/#m2ac2a6d2be06a37c9c47a3d8a44b4f647ed4f024

3.3 CVSS 3.1 Low EPSS 0.23% · top 87.6%
3.3CVSS 3.1 base score
0.23%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References
17 Jun 2026Last modified by NVD

Description

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/[email protected]/T/#m2ac2a6d2be06a37c9c47a3d8a44b4f647ed4f024

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/3565ef215101ffadb5fe5394c70b1fca51376b25 Patch
https://git.kernel.org/stable/c/43897111481b679508711d3ca881c4c6593e9247 Patch
https://git.kernel.org/stable/c/aafca50e71dc8f3192a5bfb325135a7908f3ef9e Patch
https://git.kernel.org/stable/c/d54455a3a965feb547711aff7afd2ca5deadb99c Patch
https://git.kernel.org/stable/c/e7a7ef9a0742dbd0818d5b15fba2c5313ace765b Patch
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

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Source: NIST National Vulnerability Database (record CVE-2024-47738), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.