==================================================================
BUG: KCSAN: data-race in can_rcv_filter / can_rcv_filter

read-write to 0xffff8881016f81a8 of 8 bytes by interrupt on cpu 1:
 deliver net/can/af_can.c:574 [inline]
 can_rcv_filter+0xd1/0x4c0 net/can/af_can.c:600
 can_receive+0x182/0x1f0 net/can/af_can.c:664
 can_rcv+0xe7/0x180 net/can/af_can.c:688
 __netif_receive_skb_one_core net/core/dev.c:5674 [inline]
 __netif_receive_skb+0x123/0x280 net/core/dev.c:5787
 process_backlog+0x22e/0x440 net/core/dev.c:6119
 __napi_poll+0x63/0x3c0 net/core/dev.c:6885
 napi_poll net/core/dev.c:6954 [inline]
 net_rx_action+0x3a1/0x7f0 net/core/dev.c:7076
 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:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

read-write to 0xffff8881016f81a8 of 8 bytes by interrupt on cpu 0:
 deliver net/can/af_can.c:574 [inline]
 can_rcv_filter+0xd1/0x4c0 net/can/af_can.c:600
 can_receive+0x182/0x1f0 net/can/af_can.c:664
 can_rcv+0xe7/0x180 net/can/af_can.c:688
 __netif_receive_skb_one_core net/core/dev.c:5674 [inline]
 __netif_receive_skb+0x123/0x280 net/core/dev.c:5787
 process_backlog+0x22e/0x440 net/core/dev.c:6119
 __napi_poll+0x63/0x3c0 net/core/dev.c:6885
 napi_poll net/core/dev.c:6954 [inline]
 net_rx_action+0x3a1/0x7f0 net/core/dev.c:7076
 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:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

value changed: 0x00000000001a3a6a -> 0x00000000001a3a6b

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 6.13.0-rc6-syzkaller-00051-geea6e4b4dfb8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
==================================================================
==================================================================
BUG: KCSAN: data-race in can_send / can_send

read-write to 0xffff8881171f5490 of 8 bytes by interrupt on cpu 1:
 can_send+0x5a2/0x6d0 net/can/af_can.c:290
 can_can_gw_rcv+0x77d/0x7e0 net/can/gw.c:561
 deliver net/can/af_can.c:573 [inline]
 can_rcv_filter+0xbf/0x4c0 net/can/af_can.c:600
 can_receive+0x182/0x1f0 net/can/af_can.c:664
 can_rcv+0xe7/0x180 net/can/af_can.c:688
 __netif_receive_skb_one_core net/core/dev.c:5674 [inline]
 __netif_receive_skb+0x123/0x280 net/core/dev.c:5787
 process_backlog+0x22e/0x440 net/core/dev.c:6119
 __napi_poll+0x63/0x3c0 net/core/dev.c:6885
 napi_poll net/core/dev.c:6954 [inline]
 net_rx_action+0x3a1/0x7f0 net/core/dev.c:7076
 handle_softirqs+0xbf/0x280 kernel/softirq.c:561
 do_softirq+0x5e/0x90 kernel/softirq.c:462
 __local_bh_enable_ip+0x6e/0x70 kernel/softirq.c:389
 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]
 _raw_spin_unlock_bh+0x36/0x40 kernel/locking/spinlock.c:210
 spin_unlock_bh include/linux/spinlock.h:396 [inline]
 batadv_nc_purge_paths+0x220/0x270 net/batman-adv/network-coding.c:471
 batadv_nc_worker+0x3db/0xad0 net/batman-adv/network-coding.c:720
 process_one_work kernel/workqueue.c:3229 [inline]
 process_scheduled_works+0x483/0x9a0 kernel/workqueue.c:3310
 worker_thread+0x51d/0x6f0 kernel/workqueue.c:3391
 kthread+0x1d1/0x210 kernel/kthread.c:389
 ret_from_fork+0x4b/0x60 arch/x86/kernel/process.c:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

read-write to 0xffff8881171f5490 of 8 bytes by interrupt on cpu 0:
 can_send+0x5a2/0x6d0 net/can/af_can.c:290
 can_can_gw_rcv+0x77d/0x7e0 net/can/gw.c:561
 deliver net/can/af_can.c:573 [inline]
 can_rcv_filter+0xbf/0x4c0 net/can/af_can.c:600
 can_receive+0x182/0x1f0 net/can/af_can.c:664
 can_rcv+0xe7/0x180 net/can/af_can.c:688
 __netif_receive_skb_one_core net/core/dev.c:5674 [inline]
 __netif_receive_skb+0x123/0x280 net/core/dev.c:5787
 process_backlog+0x22e/0x440 net/core/dev.c:6119
 __napi_poll+0x63/0x3c0 net/core/dev.c:6885
 napi_poll net/core/dev.c:6954 [inline]
 net_rx_action+0x3a1/0x7f0 net/core/dev.c:7076
 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:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

value changed: 0x00000000001a6772 -> 0x00000000001a6773

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 6.13.0-rc6-syzkaller-00051-geea6e4b4dfb8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
==================================================================
==================================================================
BUG: KCSAN: data-race in can_send / can_send

read-write to 0xffff8881171f54f0 of 8 bytes by interrupt on cpu 1:
 can_send+0x5b6/0x6d0 net/can/af_can.c:291
 can_can_gw_rcv+0x77d/0x7e0 net/can/gw.c:561
 deliver net/can/af_can.c:573 [inline]
 can_rcv_filter+0xbf/0x4c0 net/can/af_can.c:600
 can_receive+0x182/0x1f0 net/can/af_can.c:664
 can_rcv+0xe7/0x180 net/can/af_can.c:688
 __netif_receive_skb_one_core net/core/dev.c:5674 [inline]
 __netif_receive_skb+0x123/0x280 net/core/dev.c:5787
 process_backlog+0x22e/0x440 net/core/dev.c:6119
 __napi_poll+0x63/0x3c0 net/core/dev.c:6885
 napi_poll net/core/dev.c:6954 [inline]
 net_rx_action+0x3a1/0x7f0 net/core/dev.c:7076
 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:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

read-write to 0xffff8881171f54f0 of 8 bytes by interrupt on cpu 0:
 can_send+0x5b6/0x6d0 net/can/af_can.c:291
 can_can_gw_rcv+0x77d/0x7e0 net/can/gw.c:561
 deliver net/can/af_can.c:573 [inline]
 can_rcv_filter+0xbf/0x4c0 net/can/af_can.c:600
 can_receive+0x182/0x1f0 net/can/af_can.c:664
 can_rcv+0xe7/0x180 net/can/af_can.c:688
 __netif_receive_skb_one_core net/core/dev.c:5674 [inline]
 __netif_receive_skb+0x123/0x280 net/core/dev.c:5787
 process_backlog+0x22e/0x440 net/core/dev.c:6119
 __napi_poll+0x63/0x3c0 net/core/dev.c:6885
 napi_poll net/core/dev.c:6954 [inline]
 net_rx_action+0x3a1/0x7f0 net/core/dev.c:7076
 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:147
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244

value changed: 0x000000000000205c -> 0x000000000000205d

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 UID: 0 PID: 15 Comm: ksoftirqd/0 Not tainted 6.13.0-rc6-syzkaller-00051-geea6e4b4dfb8 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
==================================================================