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THREATINT
PUBLISHED

CVE-2024-47738

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



AssignerLinux
Reserved2024-09-30
Published2024-10-21
Updated2024-11-05

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/6ab2dc9c3afe753ca6fdcdd1421e7a1f47e87b84.camel@sipsolutions.net/T/#m2ac2a6d2be06a37c9c47a3d8a44b4f647ed4f024

Product status

Default status
unaffected

9df66d5b9f45 before aafca50e71dc
affected

9df66d5b9f45 before d54455a3a965
affected

9df66d5b9f45 before 3565ef215101
affected

9df66d5b9f45 before 43897111481b
affected

9df66d5b9f45 before e7a7ef9a0742
affected

Default status
affected

5.14
affected

Any version before 5.14
unaffected

6.1.113
unaffected

6.6.54
unaffected

6.10.13
unaffected

6.11.2
unaffected

6.12-rc1
unaffected

References

https://git.kernel.org/stable/c/aafca50e71dc8f3192a5bfb325135a7908f3ef9e

https://git.kernel.org/stable/c/d54455a3a965feb547711aff7afd2ca5deadb99c

https://git.kernel.org/stable/c/3565ef215101ffadb5fe5394c70b1fca51376b25

https://git.kernel.org/stable/c/43897111481b679508711d3ca881c4c6593e9247

https://git.kernel.org/stable/c/e7a7ef9a0742dbd0818d5b15fba2c5313ace765b

cve.org CVE-2024-47738

nvd.nist.gov CVE-2024-47738

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