================================================================== BUG: KCSAN: data-race in can_rcv_filter / can_rcv_filter read-write to 0xffff888100e36978 of 8 bytes by interrupt on cpu 1: deliver net/can/af_can.c:573 [inline] can_rcv_filter+0x2d3/0x490 net/can/af_can.c:614 can_receive+0x116/0x1f0 net/can/af_can.c:659 canfd_rcv+0xe7/0x180 net/can/af_can.c:702 __netif_receive_skb_one_core net/core/dev.c:5479 [inline] __netif_receive_skb+0x90/0x1b0 net/core/dev.c:5593 process_backlog+0x21f/0x380 net/core/dev.c:5921 __napi_poll+0x60/0x3b0 net/core/dev.c:6482 napi_poll net/core/dev.c:6549 [inline] net_rx_action+0x31a/0x6c0 net/core/dev.c:6659 __do_softirq+0xc1/0x265 kernel/softirq.c:571 invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x57/0xa0 kernel/softirq.c:650 sysvec_apic_timer_interrupt+0x6d/0x80 arch/x86/kernel/apic/apic.c:1107 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645 rcu_read_lock include/linux/rcupdate.h:771 [inline] mt_find+0xbb/0x300 lib/maple_tree.c:6444 find_vma+0x47/0x70 mm/mmap.c:1788 do_user_addr_fault arch/x86/mm/fault.c:1368 [inline] handle_page_fault arch/x86/mm/fault.c:1498 [inline] exc_page_fault+0x382/0x640 arch/x86/mm/fault.c:1554 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:570 read-write to 0xffff888100e36978 of 8 bytes by interrupt on cpu 0: deliver net/can/af_can.c:573 [inline] can_rcv_filter+0x2d3/0x490 net/can/af_can.c:614 can_receive+0x116/0x1f0 net/can/af_can.c:659 canfd_rcv+0xe7/0x180 net/can/af_can.c:702 __netif_receive_skb_one_core net/core/dev.c:5479 [inline] __netif_receive_skb+0x90/0x1b0 net/core/dev.c:5593 process_backlog+0x21f/0x380 net/core/dev.c:5921 __napi_poll+0x60/0x3b0 net/core/dev.c:6482 napi_poll net/core/dev.c:6549 [inline] net_rx_action+0x31a/0x6c0 net/core/dev.c:6659 __do_softirq+0xc1/0x265 kernel/softirq.c:571 run_ksoftirqd+0x17/0x20 kernel/softirq.c:934 smpboot_thread_fn+0x30a/0x4a0 kernel/smpboot.c:164 kthread+0x1a6/0x1e0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 value changed: 0x0000000000007376 -> 0x0000000000007377 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 12 Comm: ksoftirqd/0 Not tainted 6.3.0-rc5-syzkaller-00153-gaa318c48808c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023 ==================================================================