KCSAN: data-race in can_send / can

Kernel	Title	Count	Last	Reported	Patched	Status
upstream	KCSAN: data-race in can_send / can_send (4) can	1279	16h46m	731d	0/26	moderation: reported on 2022/04/26 02:08
upstream	KCSAN: data-race in can_send / can_send (3) can	1	1265d	1231d	0/26	auto-closed as invalid on 2020/12/25 11:24
upstream	KCSAN: data-race in can_send / can_send can	1	1619d	1619d	0/26	auto-closed as invalid on 2020/01/28 10:46

================================================================== BUG: KCSAN: data-race in can_send / can_send write to 0xffff8880ad74d8f0 of 8 bytes by interrupt on cpu 1: can_send+0x345/0x550 net/can/af_can.c:291 j1939_send_one+0x17e/0x1e0 net/can/j1939/main.c:340 j1939_tp_tx_dat net/can/j1939/transport.c:615 [inline] j1939_session_tx_dat net/can/j1939/transport.c:791 [inline] j1939_xtp_txnext_transmiter net/can/j1939/transport.c:847 [inline] j1939_tp_txtimer+0x48f/0x1280 net/can/j1939/transport.c:1095 __run_hrtimer kernel/time/hrtimer.c:1517 [inline] __hrtimer_run_queues+0x271/0x600 kernel/time/hrtimer.c:1579 hrtimer_run_softirq+0xeb/0x120 kernel/time/hrtimer.c:1596 __do_softirq+0x118/0x34a kernel/softirq.c:292 run_ksoftirqd+0x41/0x60 kernel/softirq.c:603 smpboot_thread_fn+0x374/0x4a0 kernel/smpboot.c:165 kthread+0x1cb/0x1f0 kernel/kthread.c:255 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352 read to 0xffff8880ad74d8f0 of 8 bytes by interrupt on cpu 0: can_send+0x335/0x550 net/can/af_can.c:291 j1939_send_one+0x17e/0x1e0 net/can/j1939/main.c:340 j1939_tp_tx_dat net/can/j1939/transport.c:615 [inline] j1939_session_tx_dat net/can/j1939/transport.c:791 [inline] j1939_xtp_txnext_transmiter net/can/j1939/transport.c:847 [inline] j1939_tp_txtimer+0x48f/0x1280 net/can/j1939/transport.c:1095 __run_hrtimer kernel/time/hrtimer.c:1517 [inline] __hrtimer_run_queues+0x271/0x600 kernel/time/hrtimer.c:1579 hrtimer_run_softirq+0xeb/0x120 kernel/time/hrtimer.c:1596 __do_softirq+0x118/0x34a kernel/softirq.c:292 run_ksoftirqd+0x41/0x60 kernel/softirq.c:603 smpboot_thread_fn+0x374/0x4a0 kernel/smpboot.c:165 kthread+0x1cb/0x1f0 kernel/kthread.c:255 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:352 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 9 Comm: ksoftirqd/0 Not tainted 5.6.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ==================================================================