=============================
WARNING: suspicious RCU usage
4.15.0+ #10 Not tainted
-----------------------------
./include/linux/rcupdate.h:302 Illegal context switch in RCU read-side critical section!
other info that might help us debug this:
rcu_scheduler_active = 2, debug_locks = 1
3 locks held by syz-executor2/7522:
#0: (&ctx->mutex){+.+.}, at: [<000000008e4a111b>] perf_event_ctx_lock_nested+0x21b/0x450 kernel/events/core.c:1253
#1: (bpf_event_mutex){+.+.}, at: [<00000000a1f01598>] perf_event_query_prog_array+0x10e/0x280 kernel/trace/bpf_trace.c:876
#2: (rcu_read_lock){....}, at: [<0000000052c369da>] bpf_prog_array_copy_to_user+0x0/0x4d0 kernel/bpf/core.c:1568
stack backtrace:
CPU: 1 PID: 7522 Comm: syz-executor2 Not tainted 4.15.0+ #10
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x194/0x257 lib/dump_stack.c:53
lockdep_rcu_suspicious+0x123/0x170 kernel/locking/lockdep.c:4592
rcu_preempt_sleep_check include/linux/rcupdate.h:301 [inline]
___might_sleep+0x385/0x470 kernel/sched/core.c:6079
__might_sleep+0x95/0x190 kernel/sched/core.c:6067
__might_fault+0xab/0x1d0 mm/memory.c:4532
_copy_to_user+0x2c/0xc0 lib/usercopy.c:25
copy_to_user include/linux/uaccess.h:155 [inline]
bpf_prog_array_copy_to_user+0x217/0x4d0 kernel/bpf/core.c:1587
bpf_prog_array_copy_info+0x17b/0x1c0 kernel/bpf/core.c:1685
perf_event_query_prog_array+0x196/0x280 kernel/trace/bpf_trace.c:877
_perf_ioctl kernel/events/core.c:4737 [inline]
perf_ioctl+0x3e1/0x1480 kernel/events/core.c:4757
vfs_ioctl fs/ioctl.c:46 [inline]
do_vfs_ioctl+0x1b1/0x1520 fs/ioctl.c:686
SYSC_ioctl fs/ioctl.c:701 [inline]
SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
entry_SYSCALL_64_fastpath+0x29/0xa0
RIP: 0033:0x453299
RSP: 002b:00007f568c564c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453299
RDX: 0000000020106000 RSI: 00000000c008240a RDI: 0000000000000013
RBP: 0000000000000434 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f5580
R13: 00000000ffffffff R14: 00007f568c5656d4 R15: 000000000000000a
BUG: sleeping function called from invalid context at lib/usercopy.c:25
in_atomic(): 1, irqs_disabled(): 0, pid: 7522, name: syz-executor2
3 locks held by syz-executor2/7522:
#0: (&ctx->mutex){+.+.}, at: [<000000008e4a111b>] perf_event_ctx_lock_nested+0x21b/0x450 kernel/events/core.c:1253
#1: (bpf_event_mutex){+.+.}, at: [<00000000a1f01598>] perf_event_query_prog_array+0x10e/0x280 kernel/trace/bpf_trace.c:876
#2: (rcu_read_lock){....}, at: [<0000000052c369da>] bpf_prog_array_copy_to_user+0x0/0x4d0 kernel/bpf/core.c:1568
CPU: 1 PID: 7522 Comm: syz-executor2 Not tainted 4.15.0+ #10
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x194/0x257 lib/dump_stack.c:53
___might_sleep+0x2b2/0x470 kernel/sched/core.c:6114
__might_sleep+0x95/0x190 kernel/sched/core.c:6067
__might_fault+0xab/0x1d0 mm/memory.c:4532
_copy_to_user+0x2c/0xc0 lib/usercopy.c:25
copy_to_user include/linux/uaccess.h:155 [inline]
bpf_prog_array_copy_to_user+0x217/0x4d0 kernel/bpf/core.c:1587
bpf_prog_array_copy_info+0x17b/0x1c0 kernel/bpf/core.c:1685
perf_event_query_prog_array+0x196/0x280 kernel/trace/bpf_trace.c:877
_perf_ioctl kernel/events/core.c:4737 [inline]
perf_ioctl+0x3e1/0x1480 kernel/events/core.c:4757
vfs_ioctl fs/ioctl.c:46 [inline]
do_vfs_ioctl+0x1b1/0x1520 fs/ioctl.c:686
SYSC_ioctl fs/ioctl.c:701 [inline]
SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
entry_SYSCALL_64_fastpath+0x29/0xa0
RIP: 0033:0x453299
RSP: 002b:00007f568c564c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000071bf58 RCX: 0000000000453299
RDX: 0000000020106000 RSI: 00000000c008240a RDI: 0000000000000013
RBP: 0000000000000434 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f5580
R13: 00000000ffffffff R14: 00007f568c5656d4 R15: 000000000000000a
IPVS: ftp: loaded support on port[0] = 21
syz-executor1[7805] is installing a program with bpf_probe_write_user helper that may corrupt user memory!
can: request_module (can-proto-3) failed.
overlayfs: missing 'lowerdir'
syz-executor1[7816] is installing a program with bpf_probe_write_user helper that may corrupt user memory!
overlayfs: missing 'lowerdir'
can: request_module (can-proto-3) failed.
IPVS: ftp: loaded support on port[0] = 21
audit: type=1400 audit(1517570024.190:18): avc: denied { create } for pid=7907 comm="syz-executor5" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_iscsi_socket permissive=1
syz-executor3[8001] is installing a program with bpf_probe_write_user helper that may corrupt user memory!
overlayfs: missing 'lowerdir'
syz-executor3[8001] is installing a program with bpf_probe_write_user helper that may corrupt user memory!
overlayfs: missing 'lowerdir'
EXT4-fs (sda1): re-mounted. Opts:
can: request_module (can-proto-6) failed.
EXT4-fs (sda1): re-mounted. Opts:
can: request_module (can-proto-6) failed.
audit: type=1400 audit(1517570025.636:19): avc: denied { write } for pid=8265 comm="syz-executor2" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:unlabeled_t:s0 tclass=socket permissive=1
audit: type=1400 audit(1517570025.636:20): avc: denied { setopt } for pid=8265 comm="syz-executor2" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:unlabeled_t:s0 tclass=socket permissive=1
BUG: sleeping function called from invalid context at lib/usercopy.c:25
in_atomic(): 1, irqs_disabled(): 0, pid: 8298, name: syz-executor0
3 locks held by syz-executor0/8298:
#0: (&ctx->mutex){+.+.}, at: [<000000008e4a111b>] perf_event_ctx_lock_nested+0x21b/0x450 kernel/events/core.c:1253
#1: (bpf_event_mutex){+.+.}, at: [<00000000a1f01598>] perf_event_query_prog_array+0x10e/0x280 kernel/trace/bpf_trace.c:876
#2: (rcu_read_lock){....}, at: [<0000000052c369da>] bpf_prog_array_copy_to_user+0x0/0x4d0 kernel/bpf/core.c:1568
CPU: 0 PID: 8298 Comm: syz-executor0 Tainted: G W 4.15.0+ #10
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x194/0x257 lib/dump_stack.c:53
___might_sleep+0x2b2/0x470 kernel/sched/core.c:6114
__might_sleep+0x95/0x190 kernel/sched/core.c:6067
__might_fault+0xab/0x1d0 mm/memory.c:4532
_copy_to_user+0x2c/0xc0 lib/usercopy.c:25
copy_to_user include/linux/uaccess.h:155 [inline]
bpf_prog_array_copy_to_user+0x217/0x4d0 kernel/bpf/core.c:1587
bpf_prog_array_copy_info+0x17b/0x1c0 kernel/bpf/core.c:1685
perf_event_query_prog_array+0x196/0x280 kernel/trace/bpf_trace.c:877
_perf_ioctl kernel/events/core.c:4737 [inline]
perf_ioctl+0x3e1/0x1480 kernel/events/core.c:4757
vfs_ioctl fs/ioctl.c:46 [inline]
do_vfs_ioctl+0x1b1/0x1520 fs/ioctl.c:686
SYSC_ioctl fs/ioctl.c:701 [inline]
SyS_ioctl+0x8f/0xc0 fs/ioctl.c:692
entry_SYSCALL_64_fastpath+0x29/0xa0
RIP: 0033:0x453299
RSP: 002b:00007f0345405c58 EFLAGS: 00000212 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 000000000071bea0 RCX: 0000000000453299
RDX: 0000000020ee6fe0 RSI: 00000000c008240a RDI: 0000000000000013
RBP: 000000000000027a R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000212 R12: 00000000006f2c10
R13: 00000000ffffffff R14: 00007f03454066d4 R15: 0000000000000000
rpcbind: RPC call returned error 22
autofs4:pid:8476:autofs4_fill_super: called with bogus options
rpcbind: RPC call returned error 22
9pnet_virtio: no channels available for device ./file1
9pnet_virtio: no channels available for device ./file1
audit: type=1400 audit(1517570026.983:21): avc: denied { create } for pid=8551 comm="syz-executor3" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1
xprt_adjust_timeout: rq_timeout = 0!
xprt_adjust_timeout: rq_timeout = 0!
overlayfs: unrecognized mount option ")���~��3n�\G" or missing value
overlayfs: unrecognized mount option ")���~��3n�\G" or missing value
IPVS: ftp: loaded support on port[0] = 21