IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1850 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready in_atomic(): 0, irqs_disabled(): 0, pid: 33, name: kworker/u4:2 4 locks held by kworker/u4:2/33: IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready #0: 0000000046133dea ((wq_completion)"%s"wiphy_name(local->hw.wiphy)){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2126 IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready wlan1: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 #1: 00000000f48bf867 ((work_completion)(&sdata->work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2130 wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50 #2: 00000000450c02ed (&wdev->mtx){+.+.}, at: sdata_lock net/mac80211/ieee80211_i.h:990 [inline] #2: 00000000450c02ed (&wdev->mtx){+.+.}, at: ieee80211_ibss_work+0x85/0xe10 net/mac80211/ibss.c:1675 #3: 000000000e76e96a (rcu_read_lock){....}, at: sta_info_insert_finish net/mac80211/sta_info.c:573 [inline] #3: 000000000e76e96a (rcu_read_lock){....}, at: sta_info_insert_rcu+0x48e/0x2310 net/mac80211/sta_info.c:661 IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready 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: 1 PID: 33 Comm: kworker/u4:2 Not tainted 4.19.159-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: phy6 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 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 IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50 wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50 IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not 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 audit: type=1800 audit(1606062619.256:2): pid=10130 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.5" name="file0" dev="sda1" ino=15759 res=0 hrtimer: interrupt took 44189 ns EXT4-fs (loop3): Unsupported filesystem blocksize 16777216 (2030 log_block_size) netlink: 148 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 148 bytes leftover after parsing attributes in process `syz-executor.4'. L1TF CPU bug present and SMT on, data leak possible. See CVE-2018-3646 and https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/l1tf.html for details. overlayfs: unrecognized mount option "wrkdir=./file0" or missing value EXT4-fs (loop0): VFS: Can't find ext4 filesystem 9pnet: p9_fd_create_tcp (10391): problem connecting socket to 127.0.0.1 9pnet: p9_fd_create_tcp (10393): problem connecting socket to 127.0.0.1 audit: type=1800 audit(1606062622.076:3): pid=10439 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.5" name="file0" dev="sda1" ino=15791 res=0 audit: type=1804 audit(1606062622.086:4): pid=10439 uid=0 auid=0 ses=4 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir290280872/syzkaller.3Z3f1B/72/file0" dev="sda1" ino=15791 res=1 EXT4-fs (loop0): VFS: Can't find ext4 filesystem XFS (loop0): sunit and swidth must be specified together nf_conntrack: default automatic helper assignment has been turned off for security reasons and CT-based firewall rule not found. Use the iptables CT target to attach helpers instead. audit: type=1804 audit(1606062622.826:5): pid=10459 uid=0 auid=0 ses=4 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir290280872/syzkaller.3Z3f1B/72/file0" dev="sda1" ino=15791 res=1 syz-executor.5 (10439) used greatest stack depth: 23608 bytes left audit: type=1800 audit(1606062623.056:6): pid=10528 uid=0 auid=0 ses=4 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.0" name="bus" dev="sda1" ino=15825 res=0