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================================================================== BUG: KCSAN: data-race in batadv_hardif_disable_interface / batadv_iv_ogm_schedule write to 0xffff88813ce92e78 of 8 bytes by task 22897 on cpu 1: batadv_hardif_disable_interface+0x7ed/0xa90 net/batman-adv/hard-interface.c:863 batadv_softif_destroy_netlink+0x6d/0x310 net/batman-adv/soft-interface.c:1106 default_device_exit_batch+0x596/0x660 net/core/dev.c:11755 ops_exit_list net/core/net_namespace.c:178 [inline] cleanup_net+0x4cf/0x830 net/core/net_namespace.c:640 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0x483/0x9a0 kernel/workqueue.c:3312 worker_thread+0x526/0x730 kernel/workqueue.c:3393 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 to 0xffff88813ce92e78 of 8 bytes by task 6679 on cpu 0: batadv_iv_ogm_schedule_buff net/batman-adv/bat_iv_ogm.c:843 [inline] batadv_iv_ogm_schedule+0x53c/0x780 net/batman-adv/bat_iv_ogm.c:868 batadv_iv_send_outstanding_bat_ogm_packet+0x44c/0x4b0 net/batman-adv/bat_iv_ogm.c:1712 process_one_work kernel/workqueue.c:3231 [inline] process_scheduled_works+0x483/0x9a0 kernel/workqueue.c:3312 worker_thread+0x526/0x730 kernel/workqueue.c:3393 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: 0xffff8881490cc000 -> 0x0000000000000000 Reported by Kernel Concurrency Sanitizer on: CPU: 0 PID: 6679 Comm: kworker/u8:18 Not tainted 6.10.0-rc3-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/02/2024 Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet ==================================================================
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2024/06/11 01:08 | upstream | 83a7eefedc9b | 048c640a | .config | console log | report | info | [disk image] [vmlinux] [kernel image] | ci2-upstream-kcsan-gce | KCSAN: data-race in batadv_hardif_disable_interface / batadv_iv_ogm_schedule |