42.615760][ T41] netdevsim netdevsim0 netdevsim1 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 42.650010][ T3023] 8021q: adding VLAN 0 to HW filter on device eth4 [ 42.662802][ T41] netdevsim netdevsim0 netdevsim0 (unregistering): unset [1, 0] type 2 family 0 port 6081 - 0 [ 42.711562][ T41] bridge_slave_1: left allmulticast mode [ 42.711585][ T41] bridge_slave_1: left promiscuous mode [ 42.711727][ T41] bridge0: port 2(bridge_slave_1) entered disabled state [ 42.724445][ T41] bridge_slave_0: left allmulticast mode [ 42.724531][ T41] bridge_slave_0: left promiscuous mode [ 42.724671][ T41] bridge0: port 1(bridge_slave_0) entered disabled state [ 42.787803][ T41] bond0 (unregistering): (slave bond_slave_0): Releasing backup interface [ 42.789976][ T41] bond0 (unregistering): (slave bond_slave_1): Releasing backup interface [ 42.791134][ T41] bond0 (unregistering): Released all slaves [ 42.826802][ T41] hsr_slave_0: left promiscuous mode [ 42.827314][ T41] hsr_slave_1: left promiscuous mode [ 42.827954][ T41] batman_adv: batadv0: Interface deactivated: batadv_slave_0 [ 42.827967][ T41] batman_adv: batadv0: Removing interface: batadv_slave_0 [ 42.828425][ T41] batman_adv: batadv0: Interface deactivated: batadv_slave_1 [ 42.828438][ T41] batman_adv: batadv0: Removing interface: batadv_slave_1 [ 42.831378][ T41] veth1_macvtap: left promiscuous mode [ 42.831409][ T41] veth0_macvtap: left promiscuous mode [ 42.831458][ T41] veth1_vlan: left promiscuous mode [ 42.831545][ T41] veth0_vlan: left promiscuous mode [ 42.948818][ T41] team0 (unregistering): Port device team_slave_1 removed [ 42.950757][ T41] team0 (unregistering): Port device team_slave_0 removed [ 42.975837][ T3023] 8021q: adding VLAN 0 to HW filter on device eth5 [ 43.068420][ T3023] 8021q: adding VLAN 0 to HW filter on device eth6 [ 43.158147][ T3023] 8021q: adding VLAN 0 to HW filter on device eth8 [ 43.252634][ T3023] 8021q: adding VLAN 0 to HW filter on device eth7 Warning: Permanently added '10.128.1.171' (ED25519) to the list of known hosts. [+] Using USB device: /dev/bus/usb/032/001 [ 47.817318][ T29] kauditd_printk_skb: 11 callbacks suppressed [ 47.817336][ T29] audit: type=1400 audit(1792104983.276:183): avc: denied { write } for pid=3634 comm="syz-executor407" name="001" dev="devtmpfs" ino=240 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:usb_device_t tclass=chr_file permissive=1 [ 47.817365][ T29] audit: type=1400 audit(1792104983.276:184): avc: denied { read } for pid=3634 comm="syz-executor407" name="usbmon0" dev="devtmpfs" ino=141 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:usbmon_device_t tclass=chr_file permissive=1 [ 47.817427][ T29] audit: type=1400 audit(1792104983.276:185): avc: denied { open } for pid=3634 comm="syz-executor407" path="/dev/usbmon0" dev="devtmpfs" ino=141 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:usbmon_device_t tclass=chr_file permissive=1 [ 48.110300][ T3636] ================================================================== [ 48.110344][ T3636] BUG: KCSAN: data-race in mon_reader_add / usb_hcd_submit_urb [ 48.110389][ T3636] [ 48.110396][ T3636] write to 0xffff888103449080 of 4 bytes by task 3635 on cpu 0: [ 48.110415][ T3636] mon_reader_add+0xc0/0x1d0 [ 48.110442][ T3636] mon_bin_open+0x321/0x3a0 [ 48.110470][ T3636] chrdev_open+0x2eb/0x3a0 [ 48.110491][ T3636] do_dentry_open+0x49f/0xa60 [ 48.110516][ T3636] vfs_open+0x37/0x1e0 [ 48.110536][ T3636] path_openat+0xc01/0x10d0 [ 48.110566][ T3636] do_file_open+0x16c/0x290 [ 48.110596][ T3636] do_sys_openat2+0xa0/0x130 [ 48.110622][ T3636] __x64_sys_openat+0xf2/0x120 [ 48.110648][ T3636] x64_sys_call+0x1f72/0x2550 [ 48.110677][ T3636] do_syscall_64+0x112/0x360 [ 48.110704][ T3636] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 48.110723][ T3636] [ 48.110728][ T3636] read to 0xffff888103449080 of 4 bytes by task 3636 on cpu 1: [ 48.110743][ T3636] usb_hcd_submit_urb+0x64/0x11f0 [ 48.110775][ T3636] usb_submit_urb+0xaa3/0xbb0 [ 48.110796][ T3636] usbfs_start_wait_urb+0x9f/0x1d0 [ 48.110819][ T3636] do_proc_control+0x425/0x850 [ 48.110839][ T3636] proc_control+0x71/0xa0 [ 48.110870][ T3636] usbdev_ioctl+0x918/0x16a0 [ 48.110897][ T3636] __se_sys_ioctl+0xce/0x140 [ 48.110925][ T3636] __x64_sys_ioctl+0x43/0x50 [ 48.110955][ T3636] x64_sys_call+0x239d/0x2550 [ 48.110991][ T3636] do_syscall_64+0x112/0x360 [ 48.111016][ T3636] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 48.111039][ T3636] [ 48.111043][ T3636] value changed: 0x00000000 -> 0x00000001 [ 48.111055][ T3636] [ 48.111059][ T3636] Reported by Kernel Concurrency Sanitizer on: [ 48.111088][ T3636] CPU: 1 UID: 0 PID: 3636 Comm: syz-executor407 Not tainted syzkaller #0 PREEMPT(lazy) [ 48.111112][ T3636] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 48.111124][ T3636] ================================================================== [ 50.214163][ C1] ================================================================== [ 50.214210][ C1] BUG: KCSAN: data-race in __usb_hcd_giveback_urb / mon_reader_del [ 50.214266][ C1] [ 50.214274][ C1] write to 0xffff888103449080 of 4 bytes by task 3635 on cpu 0: [ 50.214293][ C1] mon_reader_del+0x1ca/0x260 [ 50.214321][ C1] mon_bin_release+0x67/0x120 [ 50.214360][ C1] __fput+0x29e/0x630 [ 50.214389][ C1] fput_close_sync+0xad/0x190 [ 50.214421][ C1] __x64_sys_close+0x55/0xf0 [ 50.214455][ C1] x64_sys_call+0x812/0x2550 [ 50.214485][ C1] do_syscall_64+0x112/0x360 [ 50.214517][ C1] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 50.214544][ C1] [ 50.214549][ C1] read to 0xffff888103449080 of 4 bytes by interrupt on cpu 1: [ 50.214571][ C1] __usb_hcd_giveback_urb+0x131/0x310 [ 50.214606][ C1] usb_giveback_urb_bh+0x161/0x240 [ 50.214626][ C1] process_scheduled_works+0x56a/0xa50 [ 50.214660][ C1] bh_worker+0x231/0x3b0 [ 50.214682][ C1] workqueue_softirq_action+0xab/0xc0 [ 50.214708][ C1] tasklet_action+0xb/0x30 [ 50.214733][ C1] handle_softirqs+0xcc/0x2a0 [ 50.214754][ C1] run_ksoftirqd+0x1c/0x30 [ 50.214788][ C1] smpboot_thread_fn+0x32f/0x520 [ 50.214811][ C1] kthread+0x223/0x270 [ 50.214833][ C1] ret_from_fork+0x146/0x330 [ 50.214872][ C1] ret_from_fork_asm+0x1a/0x30 [ 50.214904][ C1] [ 50.214908][ C1] value changed: 0x00000001 -> 0x00000000 [ 50.214923][ C1] [ 50.214927][ C1] Reported by Kernel Concurrency Sanitizer on: [ 50.214939][ C1] CPU: 1 UID: 0 PID: 23 Comm: ksoftirqd/1 Not tainted syzkaller #0 PREEMPT(lazy) [ 50.214966][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 50.214983][ C1] ================================================================== [ 52.025094][ T3636] ================================================================== [ 52.025131][ T3636] BUG: KCSAN: data-race in mon_reader_del / usb_hcd_submit_urb [ 52.025170][ T3636] [ 52.025177][ T3636] write to 0xffff888103449080 of 4 bytes by task 3635 on cpu 0: [ 52.025195][ T3636] mon_reader_del+0x1ca/0x260 [ 52.025221][ T3636] mon_bin_release+0x67/0x120 [ 52.025248][ T3636] __fput+0x29e/0x630 [ 52.025270][ T3636] fput_close_sync+0xad/0x190 [ 52.025297][ T3636] __x64_sys_close+0x55/0xf0 [ 52.025325][ T3636] x64_sys_call+0x812/0x2550 [ 52.025351][ T3636] do_syscall_64+0x112/0x360 [ 52.025374][ T3636] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 52.025394][ T3636] [ 52.025400][ T3636] read to 0xffff888103449080 of 4 bytes by task 3636 on cpu 1: [ 52.025416][ T3636] usb_hcd_submit_urb+0x64/0x11f0 [ 52.025442][ T3636] usb_submit_urb+0xaa3/0xbb0 [ 52.025459][ T3636] usbfs_start_wait_urb+0x9f/0x1d0 [ 52.025479][ T3636] do_proc_control+0x425/0x850 [ 52.025501][ T3636] proc_control+0x71/0xa0 [ 52.025534][ T3636] usbdev_ioctl+0x918/0x16a0 [ 52.025565][ T3636] __se_sys_ioctl+0xce/0x140 [ 52.025598][ T3636] __x64_sys_ioctl+0x43/0x50 [ 52.025628][ T3636] x64_sys_call+0x239d/0x2550 [ 52.025651][ T3636] do_syscall_64+0x112/0x360 [ 52.025677][ T3636] entry_SYSCALL_64_after_hwframe+0x77/0x7f [ 52.025699][ T3636] [ 52.025704][ T3636] value changed: 0x00000001 -> 0x00000000 [ 52.025715][ T3636] [ 52.025719][ T3636] Reported by Kernel Concurrency Sanitizer on: [ 52.025732][ T3636] CPU: 1 UID: 0 PID: 3636 Comm: syz-executor407 Not tainted syzkaller #0 PREEMPT(lazy) [ 52.025756][ T3636] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 [ 52.025768][ T3636] ================================================================== [+] Race completed.