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| author | Oliver Hartkopp <[email protected]> | 2025-05-19 12:50:27 +0000 |
|---|---|---|
| committer | Marc Kleine-Budde <[email protected]> | 2025-05-19 14:58:19 +0000 |
| commit | dac5e6249159ac255dad9781793dbe5908ac9ddb (patch) | |
| tree | 6fb3fc8ab8b768b22493a8c760cebc732cc812ed /tools/testing/selftests/net/lib/py/netns.py | |
| parent | can: bcm: add locking for bcm_op runtime updates (diff) | |
| download | kernel-dac5e6249159ac255dad9781793dbe5908ac9ddb.tar.gz kernel-dac5e6249159ac255dad9781793dbe5908ac9ddb.zip | |
can: bcm: add missing rcu read protection for procfs content
When the procfs content is generated for a bcm_op which is in the process
to be removed the procfs output might show unreliable data (UAF).
As the removal of bcm_op's is already implemented with rcu handling this
patch adds the missing rcu_read_lock() and makes sure the list entries
are properly removed under rcu protection.
Fixes: f1b4e32aca08 ("can: bcm: use call_rcu() instead of costly synchronize_rcu()")
Reported-by: Anderson Nascimento <[email protected]>
Suggested-by: Anderson Nascimento <[email protected]>
Tested-by: Anderson Nascimento <[email protected]>
Signed-off-by: Oliver Hartkopp <[email protected]>
Link: https://patch.msgid.link/[email protected]
Cc: [email protected] # >= 5.4
Signed-off-by: Marc Kleine-Budde <[email protected]>
Diffstat (limited to 'tools/testing/selftests/net/lib/py/netns.py')
0 files changed, 0 insertions, 0 deletions