================================================================== BUG: KCSAN: data-race in can_receive / can_receive read-write to 0xffff8881041054e8 of 8 bytes by interrupt on cpu 0: can_receive+0x62/0x1f0 net/can/af_can.c:651 canfd_rcv+0xe7/0x180 net/can/af_can.c:703 __netif_receive_skb_one_core net/core/dev.c:5704 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5817 process_backlog+0x22e/0x440 net/core/dev.c:6149 __napi_poll+0x63/0x3c0 net/core/dev.c:6902 napi_poll net/core/dev.c:6971 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7093 handle_softirqs+0xbf/0x280 kernel/softirq.c:561 run_ksoftirqd+0x1c/0x30 kernel/softirq.c:950 smpboot_thread_fn+0x31c/0x4c0 kernel/smpboot.c:164 kthread+0x1d1/0x210 kernel/kthread.c:389 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 read-write to 0xffff8881041054e8 of 8 bytes by interrupt on cpu 1: can_receive+0x62/0x1f0 net/can/af_can.c:651 canfd_rcv+0xe7/0x180 net/can/af_can.c:703 __netif_receive_skb_one_core net/core/dev.c:5704 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5817 process_backlog+0x22e/0x440 net/core/dev.c:6149 __napi_poll+0x63/0x3c0 net/core/dev.c:6902 napi_poll net/core/dev.c:6971 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7093 handle_softirqs+0xbf/0x280 kernel/softirq.c:561 run_ksoftirqd+0x1c/0x30 kernel/softirq.c:950 smpboot_thread_fn+0x31c/0x4c0 kernel/smpboot.c:164 kthread+0x1d1/0x210 kernel/kthread.c:389 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 value changed: 0x0000000000000d07 -> 0x0000000000000d08 Reported by Kernel Concurrency Sanitizer on: CPU: 1 UID: 0 PID: 23 Comm: ksoftirqd/1 Not tainted 6.13.0-syzkaller-01005-gb9d8a295ed6b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 ==================================================================