New: Malicious advertising data showed in dmesg
https://bugzilla.kernel.org/show_bug.cgi?id=215681
Bug ID: 215681
Summary: Malicious advertising data showed in dmesg
Product: Drivers
Version: 2.5
Kernel Version: 5.10.95
Hardware: ARM
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: Bluetooth
Assignee: [email protected]
Reporter: [email protected]
Regression: NoHi,
I have recently moved from Raspbian 9 to 10 which means kernel 4.19 to kernem 5.10 .
I use an application that advertises permanently and scans ble devices. Since the upgrade i noticed plenty of messages in dmesg output like this :
[Mon Mar 14 15:16:44 2022] Bluetooth: hci0: Malicious advertising data.
Stopping processing
This kind of messages were not displayed with 4.19 kernel
Any suggestions, how I can disable this flooding message?
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[Bug 215681] Malicious advertising data showed in dmesg
https://bugzilla.kernel.org/show_bug.cgi?id=215681
--- Comment #1 from Artem S. Tashkinov ([email protected]) --- If you can compile the kernel, please do.
Find the code which prints it and patch it this way:
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[Bug 215681] Malicious advertising data showed in dmesg
In reply to [email protected]https://bugzilla.kernel.org/show_bug.cgi?id=215681
--- Comment #2 from Olivier JUDITH ([email protected]) ---
Hi,
Yes i compiled before and i can do it again.
In the meanwhile i tried 5.15 and i've no Malicious messages displayed.
i'll we apply you suggestion
The issue come from hci_le_adv_report_evt in hci_event.h. i noticed that this function is a bit different in 5.15.
i also understood that the change was to evict flow of messages but the real cause seems to be a packet size is exceeded. Does this mean that my advertising is not correct ?
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