IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1850 in_atomic(): 0, irqs_disabled(): 0, pid: 23, name: kworker/u4:1 4 locks held by kworker/u4:1/23: #0: 00000000ef17a877 ((wq_completion)"%s"wiphy_name(local->hw.wiphy)){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2126 #1: 00000000836ec867 ((work_completion)(&sdata->work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2130 #2: 00000000daca53af (&wdev->mtx){+.+.}, at: sdata_lock net/mac80211/ieee80211_i.h:990 [inline] #2: 00000000daca53af (&wdev->mtx){+.+.}, at: ieee80211_ibss_work+0x85/0xe10 net/mac80211/ibss.c:1675 #3: 0000000025d59232 (rcu_read_lock){....}, at: sta_info_insert_finish net/mac80211/sta_info.c:573 [inline] #3: 0000000025d59232 (rcu_read_lock){....}, at: sta_info_insert_rcu+0x48e/0x2310 net/mac80211/sta_info.c:661 Preemption disabled at: [] rcu_lockdep_current_cpu_online kernel/rcu/tree.c:1076 [inline] [] rcu_lockdep_current_cpu_online+0x32/0x1b0 kernel/rcu/tree.c:1068 CPU: 0 PID: 23 Comm: kworker/u4:1 Not tainted 4.19.159-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: phy11 ieee80211_iface_work Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2fe lib/dump_stack.c:118 ___might_sleep.cold+0x235/0x250 kernel/sched/core.c:6196 sta_info_move_state+0x32/0x900 net/mac80211/sta_info.c:1850 sta_info_free+0x55/0x390 net/mac80211/sta_info.c:260 sta_info_insert_rcu+0x517/0x2310 net/mac80211/sta_info.c:667 ieee80211_ibss_finish_sta+0x25b/0x360 net/mac80211/ibss.c:601 IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready ieee80211_ibss_work+0x2b6/0xe10 net/mac80211/ibss.c:1692 ieee80211_iface_work+0x7ba/0x8a0 net/mac80211/iface.c:1366 process_one_work+0x864/0x1570 kernel/workqueue.c:2155 worker_thread+0x64c/0x1130 kernel/workqueue.c:2298 kthread+0x33f/0x460 kernel/kthread.c:259 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready ptrace attach of "/root/syz-executor.3"[9716] was attempted by "/root/syz-executor.3"[9719] netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. hid-generic 0000:0000:0000.0001: unknown main item tag 0x0 hid-generic 0000:0000:0000.0001: unknown main item tag 0x0 batman_adv: batadv0: Adding interface: veth1_to_bridge batman_adv: batadv0: The MTU of interface veth1_to_bridge is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. hid-generic 0000:0000:0000.0001: unknown main item tag 0x0 hid-generic 0000:0000:0000.0001: unknown main item tag 0x0 batman_adv: batadv0: Interface activated: veth1_to_bridge hid-generic 0000:0000:0000.0001: unknown main item tag 0x0 hid-generic 0000:0000:0000.0001: unknown main item tag 0x0 batman_adv: batadv0: Interface deactivated: veth1_to_bridge hid-generic 0000:0000:0000.0001: unknown main item tag 0x0 hid-generic 0000:0000:0000.0001: unknown main item tag 0x0 hid-generic 0000:0000:0000.0001: unknown main item tag 0x0 hid-generic 0000:0000:0000.0001: unknown main item tag 0x0 hid-generic 0000:0000:0000.0001: unknown main item tag 0x0 hid-generic 0000:0000:0000.0001: unknown main item tag 0x0 hid-generic 0000:0000:0000.0001: unknown main item tag 0x0 hid-generic 0000:0000:0000.0001: unknown main item tag 0x0 hid-generic 0000:0000:0000.0001: unknown main item tag 0x0 hid-generic 0000:0000:0000.0001: unknown main item tag 0x0 hid-generic 0000:0000:0000.0001: unknown main item tag 0x0 hid-generic 0000:0000:0000.0001: unknown main item tag 0x0 hid-generic 0000:0000:0000.0001: unknown main item tag 0x0 hid-generic 0000:0000:0000.0001: unknown main item tag 0x0 hid-generic 0000:0000:0000.0001: unknown main item tag 0x0 hid-generic 0000:0000:0000.0001: unknown main item tag 0x0 hid-generic 0000:0000:0000.0001: hidraw0: HID v0.00 Device [syz1] on sz1 hid-generic 0000:0000:0000.0002: unknown main item tag 0x0 hid-generic 0000:0000:0000.0002: unknown main item tag 0x0 hid-generic 0000:0000:0000.0002: unknown main item tag 0x0 hid-generic 0000:0000:0000.0002: unknown main item tag 0x0 hid-generic 0000:0000:0000.0002: unknown main item tag 0x0 hid-generic 0000:0000:0000.0002: unknown main item tag 0x0 hid-generic 0000:0000:0000.0002: unknown main item tag 0x0 hid-generic 0000:0000:0000.0002: unknown main item tag 0x0 hid-generic 0000:0000:0000.0002: unknown main item tag 0x0 hid-generic 0000:0000:0000.0002: unknown main item tag 0x0 hid-generic 0000:0000:0000.0002: unknown main item tag 0x0 hid-generic 0000:0000:0000.0002: unknown main item tag 0x0 hid-generic 0000:0000:0000.0002: unknown main item tag 0x0 hid-generic 0000:0000:0000.0002: unknown main item tag 0x0 hid-generic 0000:0000:0000.0002: unknown main item tag 0x0 hid-generic 0000:0000:0000.0002: unknown main item tag 0x0 hid-generic 0000:0000:0000.0002: unknown main item tag 0x0 hid-generic 0000:0000:0000.0002: unknown main item tag 0x0 hid-generic 0000:0000:0000.0002: unknown main item tag 0x0 hid-generic 0000:0000:0000.0002: unknown main item tag 0x0 hid-generic 0000:0000:0000.0002: unknown main item tag 0x0 hid-generic 0000:0000:0000.0002: unknown main item tag 0x0 hid-generic 0000:0000:0000.0002: hidraw0: HID v0.00 Device [syz1] on sz1 bridge0: port 2(bridge_slave_1) entered disabled state batman_adv: batadv0: Removing interface: veth1_to_bridge device bridge_slave_1 left promiscuous mode bridge0: port 2(bridge_slave_1) entered disabled state netlink: 24 bytes leftover after parsing attributes in process `syz-executor.4'. batman_adv: batadv0: Adding interface: veth3 batman_adv: batadv0: The MTU of interface veth3 is too small (1500) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to 1560 would solve the problem. batman_adv: batadv0: Not using interface veth3 (retrying later): interface not active batman_adv: batadv0: Removing interface: veth3 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 FAT-fs (loop4): Directory bread(block 64) failed hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 FAT-fs (loop4): Directory bread(block 65) failed hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 FAT-fs (loop4): Directory bread(block 66) failed hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 FAT-fs (loop4): Directory bread(block 67) failed hid-generic 0000:0000:0000.0003: unknown main item tag 0x0 hid-generic 0000:0000:0000.0003: hidraw0: HID v0.00 Device [syz1] on sz1 FAT-fs (loop4): Directory bread(block 68) failed FAT-fs (loop4): Directory bread(block 69) failed FAT-fs (loop4): Directory bread(block 70) failed FAT-fs (loop4): Directory bread(block 71) failed FAT-fs (loop4): Directory bread(block 72) failed FAT-fs (loop4): Directory bread(block 73) failed hid-generic 0000:0000:0000.0004: unknown main item tag 0x0 hid-generic 0000:0000:0000.0004: unknown main item tag 0x0 FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)