Oliver Hartkopp 0622846db7 can: bcm: add missing rcu read protection for procfs content ... commit dac5e62491 upstream. 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: f1b4e32aca ("can: bcm: use call_rcu() instead of costly synchronize_rcu()") Reported-by: Anderson Nascimento <anderson@allelesecurity.com> Suggested-by: Anderson Nascimento <anderson@allelesecurity.com> Tested-by: Anderson Nascimento <anderson@allelesecurity.com> Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net> Link: https://patch.msgid.link/20250519125027.11900-2-socketcan@hartkopp.net Cc: stable@vger.kernel.org # >= 5.4 Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2025-06-04 14:38:06 +02:00
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j1939
af_can.c
af_can.h
bcm.c	can: bcm: add missing rcu read protection for procfs content	2025-06-04 14:38:06 +02:00
gw.c
isotp.c
Kconfig
Makefile
proc.c
raw.c