selftests/tc-testing: Add a test for HFSC eltree double add with reentrant enqueue behaviour on netem

Browse source

Reproduce the UAF scenario where netem is a child of HFSC and HFSC
is configured to use the eltree. In such case, this TDC test would
cause the HFSC class to be added to the eltree twice resulting
in a UAF.

Reviewed-by: Victor Nogueira <victor@mojatatu.com>
Signed-off-by: Pedro Tammela <pctammela@mojatatu.com>
Link: https://patch.msgid.link/20250522181448.1439717-3-pctammela@mojatatu.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

...

This commit is contained in:

Pedro Tammela 2025-05-22 15:14:48 -03:00 • committed by Paolo Abeni

parent ac9fe7dd8e

commit 2945ff733d

1 changed files with 35 additions and 0 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

35

tools/testing/selftests/tc-testing/tc-tests/infra/qdiscs.json

View file