================================================================== BUG: KCSAN: data-race in can_receive / can_receive read-write to 0xffff88810a6c3ce8 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:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 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+0x4ae/0x520 kernel/kthread.c:464 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 0xffff88810a6c3ce8 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:5828 [inline] __netif_receive_skb+0x123/0x280 net/core/dev.c:5941 process_backlog+0x22e/0x440 net/core/dev.c:6289 __napi_poll+0x63/0x3c0 net/core/dev.c:7106 napi_poll net/core/dev.c:7175 [inline] net_rx_action+0x3a1/0x7f0 net/core/dev.c:7297 handle_softirqs+0xbf/0x280 kernel/softirq.c:561 __do_softirq kernel/softirq.c:595 [inline] invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0x3a/0xc0 kernel/softirq.c:662 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0x73/0x80 arch/x86/kernel/apic/apic.c:1049 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 __sanitizer_cov_trace_pc+0x8/0x70 kernel/kcov.c:213 smpboot_thread_fn+0x365/0x4c0 kernel/smpboot.c:114 kthread+0x4ae/0x520 kernel/kthread.c:464 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: 0x0000000000000597 -> 0x0000000000000598 Reported by Kernel Concurrency Sanitizer on: CPU: 0 UID: 0 PID: 15 Comm: ksoftirqd/0 Tainted: G W 6.14.0-rc3-syzkaller-00012-g2408a807bfc3 #0 Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 ==================================================================