IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready new mount options do not match the existing superblock, will be ignored BUG: sleeping function called from invalid context at net/mac80211/sta_info.c:1850 EXT4-fs (loop1): error: journal path ./file1 is not a block device in_atomic(): 0, irqs_disabled(): 0, pid: 7, name: kworker/u4:0 4 locks held by kworker/u4:0/7: #0: 00000000eca7ed82 ((wq_completion)"%s"wiphy_name(local->hw.wiphy)){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2126 #1: 000000001343a055 ((work_completion)(&sdata->work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2130 #2: 0000000014b538eb (&wdev->mtx){+.+.}, at: sdata_lock net/mac80211/ieee80211_i.h:990 [inline] #2: 0000000014b538eb (&wdev->mtx){+.+.}, at: ieee80211_ibss_work+0x85/0xe10 net/mac80211/ibss.c:1675 #3: 00000000e6f3684d (rcu_read_lock){....}, at: sta_info_insert_finish net/mac80211/sta_info.c:573 [inline] #3: 00000000e6f3684d (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: 1 PID: 7 Comm: kworker/u4:0 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 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 sit0: Cannot use loopback or non-ethernet device as HSR slave. IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready sit0: Cannot use loopback or non-ethernet device as HSR slave. 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_UP): wlan1: link is not ready 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 netlink: 56 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 'syz-executor.2': attribute type 1 has an invalid length. netlink: 'syz-executor.2': attribute type 1 has an invalid length. netlink: 36 bytes leftover after parsing attributes in process `syz-executor.4'. EXT4-fs (loop0): Unrecognized mount option "¤¯6 Ò+€hòY®}öï¼É€ÒÈÅèåCÉ/QØúAJQžŸçbåH0" or missing value netlink: 36 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 "upperdiT=./f" or missing value netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'. netlink: 72 bytes leftover after parsing attributes in process `syz-executor.0'. audit: type=1804 audit(1606062820.185:2): pid=9798 uid=0 auid=0 ses=4 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir556234877/syzkaller.4tWP2A/8/bus" dev="sda1" ino=15790 res=1 netlink: 'syz-executor.1': attribute type 4 has an invalid length. syz-executor.0 (9798) used greatest stack depth: 23640 bytes left audit: type=1804 audit(1606062820.195:3): pid=9798 uid=0 auid=0 ses=4 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir556234877/syzkaller.4tWP2A/8/bus" dev="sda1" ino=15790 res=1 audit: type=1804 audit(1606062820.275:4): pid=9802 uid=0 auid=0 ses=4 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir556234877/syzkaller.4tWP2A/8/bus" dev="sda1" ino=15790 res=1 audit: type=1804 audit(1606062820.355:5): pid=9798 uid=0 auid=0 ses=4 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir556234877/syzkaller.4tWP2A/8/bus" dev="sda1" ino=15790 res=1 EXT4-fs: Warning: mounting with data=journal disables delayed allocation and O_DIRECT support! EXT4-fs (loop0): encrypted files will use data=ordered instead of data journaling mode EXT4-fs (loop0): Can't read superblock on 2nd try audit: type=1804 audit(1606062820.405:6): pid=9807 uid=0 auid=0 ses=4 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir556234877/syzkaller.4tWP2A/8/bus" dev="sda1" ino=15790 res=1 audit: type=1804 audit(1606062820.575:7): pid=9815 uid=0 auid=0 ses=4 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir556234877/syzkaller.4tWP2A/9/bus" dev="sda1" ino=15790 res=1 audit: type=1804 audit(1606062820.575:8): pid=9815 uid=0 auid=0 ses=4 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir556234877/syzkaller.4tWP2A/9/bus" dev="sda1" ino=15790 res=1 hub 9-0:1.0: USB hub found hub 9-0:1.0: 8 ports detected EXT4-fs (loop0): encrypted files will use data=ordered instead of data journaling mode EXT4-fs (loop0): Can't read superblock on 2nd try audit: type=1804 audit(1606062820.665:9): pid=9815 uid=0 auid=0 ses=4 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.0" name="/root/syzkaller-testdir556234877/syzkaller.4tWP2A/9/bus" dev="sda1" ino=15790 res=1 audit: type=1804 audit(1606062820.775:10): pid=9822 uid=0 auid=0 ses=4 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.5" name="/root/syzkaller-testdir360481251/syzkaller.x0Wk2k/5/bus" dev="sda1" ino=15792 res=1 audit: type=1804 audit(1606062820.805:11): pid=9819 uid=0 auid=0 ses=4 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor.5" name="/root/syzkaller-testdir360481251/syzkaller.x0Wk2k/5/bus" dev="sda1" ino=15792 res=1 netlink: 'syz-executor.1': attribute type 4 has an invalid length. netlink: 'syz-executor.1': attribute type 4 has an invalid length. TCP: request_sock_TCP: Possible SYN flooding on port 20002. Sending cookies. Check SNMP counters. netlink: 'syz-executor.1': attribute type 4 has an invalid length. nla_parse: 3 callbacks suppressed netlink: 20 bytes leftover after parsing attributes in process `syz-executor.0'. netlink: 20 bytes leftover after parsing attributes in process `syz-executor.0'. overlayfs: unrecognized mount option "./file0" or missing value IPVS: ftp: loaded support on port[0] = 21 mac80211_hwsim: wmediumd released netlink socket, switching to perfect channel medium hfs: uid requires an argument hfs: unable to parse mount options EXT4-fs (loop0): unsupported inode size: 0 EXT4-fs (loop0): blocksize: 4096 hfs: uid requires an argument hfs: unable to parse mount options hfs: uid requires an argument hfs: unable to parse mount options overlayfs: unrecognized mount option "euid=00000000004294967295" or missing value IPVS: ftp: loaded support on port[0] = 21 overlayfs: unrecognized mount option "euid=00000000004294967295" or missing value hfs: uid requires an argument hfs: unable to parse mount options VFS: Can't find a Minix filesystem V1 | V2 | V3 on device loop5. hfs: uid requires an argument hfs: unable to parse mount options VFS: Can't find a Minix filesystem V1 | V2 | V3 on device loop0. kvm [10077]: vcpu0, guest rIP: 0xcc ignored wrmsr: 0x11e data 0xbe702111 kvm [10077]: vcpu0, guest rIP: 0xcc ignored wrmsr: 0x11e data 0xbe702111