attempt to access beyond end of device
loop0: rw=0, want=308, limit=272
ieee802154 phy0 wpan0: encryption failed: -22
ieee802154 phy1 wpan1: encryption failed: -22
batman_adv: batadv0: Interface deactivated: batadv_slave_0
INFO: task syz-executor.2:18464 blocked for more than 140 seconds.
Not tainted 4.19.178-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
batman_adv: batadv0: Removing interface: batadv_slave_0
syz-executor.2 D28816 18464 8124 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2828 [inline]
__schedule+0x887/0x2040 kernel/sched/core.c:3517
schedule+0x8d/0x1b0 kernel/sched/core.c:3561
__rwsem_down_read_failed_common kernel/locking/rwsem-xadd.c:292 [inline]
rwsem_down_read_failed+0x20a/0x390 kernel/locking/rwsem-xadd.c:309
call_rwsem_down_read_failed+0x14/0x30 arch/x86/lib/rwsem.S:94
__down_read arch/x86/include/asm/rwsem.h:83 [inline]
down_read+0x44/0x80 kernel/locking/rwsem.c:26
inode_lock_shared include/linux/fs.h:758 [inline]
lookup_slow fs/namei.c:1688 [inline]
walk_component+0x798/0xda0 fs/namei.c:1811
lookup_last fs/namei.c:2274 [inline]
path_lookupat+0x1ff/0x8d0 fs/namei.c:2319
filename_lookup+0x1ac/0x5a0 fs/namei.c:2349
user_path_at include/linux/namei.h:57 [inline]
ksys_chdir+0x84/0x1d0 fs/open.c:458
__do_sys_chdir fs/open.c:480 [inline]
__se_sys_chdir fs/open.c:478 [inline]
__x64_sys_chdir+0x2d/0x40 fs/open.c:478
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x465f69
Code: Bad RIP value.
RSP: 002b:00007fdbe2fed188 EFLAGS: 00000246 ORIG_RAX: 0000000000000050
RAX: ffffffffffffffda RBX: 000000000056c0b0 RCX: 0000000000465f69
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000040
RBP: 00000000004bfa67 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c0b0
R13: 00007fff699e744f R14: 00007fdbe2fed300 R15: 0000000000022000
batman_adv: batadv0: Interface deactivated: batadv_slave_1
batman_adv: batadv0: Removing interface: batadv_slave_1
INFO: task syz-executor.2:18470 blocked for more than 140 seconds.
Not tainted 4.19.178-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.2 D30344 18470 8124 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2828 [inline]
__schedule+0x887/0x2040 kernel/sched/core.c:3517
schedule+0x8d/0x1b0 kernel/sched/core.c:3561
__rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:589 [inline]
rwsem_down_write_failed+0x3aa/0x760 kernel/locking/rwsem-xadd.c:618
call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:117
__down_write arch/x86/include/asm/rwsem.h:142 [inline]
down_write_nested+0x51/0x90 kernel/locking/rwsem.c:194
inode_lock_nested include/linux/fs.h:783 [inline]
filename_create+0x15a/0x490 fs/namei.c:3638
user_path_create fs/namei.c:3696 [inline]
do_mkdirat+0xa0/0x2d0 fs/namei.c:3834
do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x465f69
Code: Bad RIP value.
RSP: 002b:00007fdbe2fcc188 EFLAGS: 00000246 ORIG_RAX: 0000000000000053
RAX: ffffffffffffffda RBX: 000000000056c158 RCX: 0000000000465f69
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000180
RBP: 00000000004bfa67 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c158
R13: 00007fff699e744f R14: 00007fdbe2fcc300 R15: 0000000000022000
Showing all locks held in the system:
device bridge_slave_1 left promiscuous mode
7 locks held by kworker/u4:1/23:
1 lock held by khungtaskd/1566:
#0: 00000000199ec62f (rcu_read_lock){....}, at: debug_show_all_locks+0x53/0x265 kernel/locking/lockdep.c:4440
1 lock held by in:imklog/7795:
bridge0: port 2(bridge_slave_1) entered disabled state
#0: 000000002838c162 (&f->f_pos_lock){+.+.}, at: __fdget_pos+0x26f/0x310 fs/file.c:767
2 locks held by kworker/1:3/8761:
#0: 00000000cf191df1 ((wq_completion)"rcu_gp"){+.+.}, at: process_one_work+0x767/0x1570 kernel/workqueue.c:2123
#1: 000000008b9b4737 ((work_completion)(&rew.rew_work)){+.+.}, at: process_one_work+0x79c/0x1570 kernel/workqueue.c:2127
2 locks held by syz-executor.2/18385:
1 lock held by syz-executor.2/18464:
#0: 00000000ba27979d (&type->i_mutex_dir_key#9){++++}, at: inode_lock_shared include/linux/fs.h:758 [inline]
#0: 00000000ba27979d (&type->i_mutex_dir_key#9){++++}, at: lookup_slow fs/namei.c:1688 [inline]
#0: 00000000ba27979d (&type->i_mutex_dir_key#9){++++}, at: walk_component+0x798/0xda0 fs/namei.c:1811
2 locks held by syz-executor.2/18470:
#0: 00000000b0772776 (sb_writers#14){.+.+}, at: sb_start_write include/linux/fs.h:1579 [inline]
#0: 00000000b0772776 (sb_writers#14){.+.+}, at: mnt_want_write+0x3a/0xb0 fs/namespace.c:360
#1: 00000000ba27979d (&type->i_mutex_dir_key#8/1){+.+.}, at: inode_lock_nested include/linux/fs.h:783 [inline]
#1: 00000000ba27979d (&type->i_mutex_dir_key#8/1){+.+.}, at: filename_create+0x15a/0x490 fs/namei.c:3638
=============================================
device bridge_slave_0 left promiscuous mode
NMI backtrace for cpu 0
CPU: 0 PID: 1566 Comm: khungtaskd Not tainted 4.19.178-syzkaller #0
bridge0: port 1(bridge_slave_0) entered disabled state
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:203 [inline]
watchdog+0x991/0xe60 kernel/hung_task.c:287
kthread+0x33f/0x460 kernel/kthread.c:259
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 8761 Comm: kworker/1:3 Not tainted 4.19.178-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: (null) (rcu_gp)
RIP: 0010:rcu_read_lock_sched_held+0xe1/0x1d0 kernel/rcu/update.c:117
Code: 8b 95 84 08 00 00 85 d2 75 b4 e8 0a da 00 00 84 c0 0f 84 88 00 00 00 e8 3d 8c 00 00 84 c0 74 7f 48 b8 00 00 00 00 00 fc ff df <48> 89 da 83 e3 07 48 c1 ea 03 83 c3 03 0f b6 04 02 38 c3 7c 08 84
RSP: 0018:ffff88804ef37cc0 EFLAGS: 00000002
RAX: dffffc0000000000 RBX: ffffffff8a45d0e0 RCX: 0000000000000000
RDX: 0000000000000004 RSI: ffffffff8375bba1 RDI: 0000000000000001
RBP: ffff88804ef78600 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffff88804ef78600
R13: 000000000002b040 R14: ffff88804ef30000 R15: ffff8880ba12b040
FS: 0000000000000000(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000130 CR3: 0000000093c41000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
trace_rcu_utilization include/trace/events/rcu.h:21 [inline]
rcu_note_context_switch+0xc77/0x1690 kernel/rcu/tree.c:435
__schedule+0x1f1/0x2040 kernel/sched/core.c:3445
schedule+0x8d/0x1b0 kernel/sched/core.c:3561
worker_thread+0x14c/0x1130 kernel/workqueue.c:2316
kthread+0x33f/0x460 kernel/kthread.c:259
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415