x_tables errors may flood dmesg

Bug #1935837 reported by Thadeu Lima de Souza Cascardo
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
linux (Ubuntu)
Invalid
Undecided
Unassigned
Bionic
In Progress
Low
Thadeu Lima de Souza Cascardo

Bug Description

[Impact]
User may spam dmesg with a lot of error messages.

[Fix]
ratelimit these error messages.

[Test case]
Run a test program that tries to create a mismatched x_tables entry in a loop. Watch for dmesg.

[Potential regression]
Error messages may be missed.

Revision history for this message
Thadeu Lima de Souza Cascardo (cascardo) wrote :

commit 1b6cd67191e16a66f69c9881d878204c3143f03f ("netfilter: x_tables: use pr ratelimiting in xt core") should be backported.

Changed in linux (Ubuntu):
status: New → Invalid
Changed in linux (Ubuntu Bionic):
status: New → In Progress
importance: Undecided → Low
assignee: nobody → Thadeu Lima de Souza Cascardo (cascardo)
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