audit: type=1400 audit(1574256167.942:60923): avc: denied { write } for pid=32257 comm="syz-executor.5" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 binder: 32294:32298 ioctl 40046205 0 returned -22 binder: 32294:32298 unknown command 63 ============================= WARNING: suspicious RCU usage 4.14.154+ #0 Not tainted ----------------------------- include/linux/radix-tree.h:238 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 2 locks held by syz-executor.4/32300: #0: (&sb->s_type->i_mutex_key#10){+.+.}, at: [<00000000d94c56d2>] inode_lock include/linux/fs.h:724 [inline] #0: (&sb->s_type->i_mutex_key#10){+.+.}, at: [<00000000d94c56d2>] shmem_add_seals+0x12b/0xf80 mm/shmem.c:2831 #1: (&(&mapping->tree_lock)->rlock){-.-.}, at: [<000000009377543f>] spin_lock_irq include/linux/spinlock.h:342 [inline] #1: (&(&mapping->tree_lock)->rlock){-.-.}, at: [<000000009377543f>] shmem_tag_pins mm/shmem.c:2685 [inline] #1: (&(&mapping->tree_lock)->rlock){-.-.}, at: [<000000009377543f>] shmem_wait_for_pins mm/shmem.c:2726 [inline] #1: (&(&mapping->tree_lock)->rlock){-.-.}, at: [<000000009377543f>] shmem_add_seals+0x2e1/0xf80 mm/shmem.c:2843 stack backtrace: CPU: 1 PID: 32300 Comm: syz-executor.4 Not tainted 4.14.154+ #0 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0xe5/0x154 lib/dump_stack.c:58 radix_tree_deref_slot include/linux/radix-tree.h:238 [inline] shmem_tag_pins mm/shmem.c:2687 [inline] shmem_wait_for_pins mm/shmem.c:2726 [inline] shmem_add_seals+0x9d2/0xf80 mm/shmem.c:2843 shmem_fcntl+0xea/0x120 mm/shmem.c:2878 do_fcntl+0x5c8/0xd20 fs/fcntl.c:421 SYSC_fcntl fs/fcntl.c:463 [inline] SyS_fcntl+0xc6/0x100 fs/fcntl.c:448 do_syscall_64+0x19b/0x520 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a639 RSP: 002b:00007fdafe2a9c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000048 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=9695 sclass=netlink_route_socket pig=32305 comm=syz-executor.0 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a639 RDX: 0000000000000008 RSI: 0000000000000409 RDI: 0000000000000004 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fdafe2aa6d4 R13: 00000000004c1068 R14: 00000000004d3c60 R15: 00000000ffffffff binder: 32294:32298 ioctl c0306201 200000c0 returned -22 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=32306 comm=syz-executor.5 binder: 32294:32298 ioctl 40046205 0 returned -22 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=32306 comm=syz-executor.5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=32306 comm=syz-executor.5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=32306 comm=syz-executor.5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=32306 comm=syz-executor.5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=32306 comm=syz-executor.5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=32306 comm=syz-executor.5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=32306 comm=syz-executor.5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=32306 comm=syz-executor.5 binder: 32316:32319 unknown command 67134219 binder: 32316:32319 ioctl c0306201 200000c0 returned -22 binder: 32316:32319 ioctl 40046205 0 returned -22 binder: 32316:32325 unknown command 67134219 binder: 32316:32325 ioctl c0306201 200000c0 returned -22 netlink: 3 bytes leftover after parsing attributes in process `syz-executor.4'. binder: 32338:32339 ioctl 40046205 0 returned -22 binder: 32338:32339 unknown command 887329803 binder: 32338:32339 ioctl c0306201 200000c0 returned -22 binder: 32338:32339 ioctl 40046205 0 returned -22 binder: 32338:32341 unknown command 887329803 binder: 32338:32341 ioctl c0306201 200000c0 returned -22 netlink: 3 bytes leftover after parsing attributes in process `syz-executor.4'. binder: 32360:32361 ioctl 40046205 0 returned -22 binder: 32360:32361 unknown command 65535 binder: 32360:32361 ioctl c0306201 200000c0 returned -22 binder: 32360:32361 ioctl 40046205 0 returned -22 binder: 32360:32362 unknown command 65535 binder: 32360:32362 ioctl c0306201 200000c0 returned -22 kauditd_printk_skb: 173 callbacks suppressed audit: type=1400 audit(1574256172.952:61097): avc: denied { map } for pid=32374 comm="blkid" path="/sbin/blkid" dev="sda1" ino=16128 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 audit: type=1400 audit(1574256172.952:61098): avc: denied { map } for pid=32374 comm="blkid" path="/sbin/blkid" dev="sda1" ino=16128 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 audit: type=1400 audit(1574256172.952:61099): avc: denied { map } for pid=32374 comm="blkid" path="/lib/x86_64-linux-gnu/ld-2.13.so" dev="sda1" ino=2668 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 audit: type=1400 audit(1574256172.952:61100): avc: denied { map } for pid=32374 comm="blkid" path="/lib/x86_64-linux-gnu/ld-2.13.so" dev="sda1" ino=2668 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 audit: type=1400 audit(1574256172.952:61101): avc: denied { map } for pid=32374 comm="blkid" path="/etc/ld.so.cache" dev="sda1" ino=2503 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 audit: type=1400 audit(1574256172.952:61102): avc: denied { map } for pid=32374 comm="blkid" path="/lib/x86_64-linux-gnu/libblkid.so.1.1.0" dev="sda1" ino=2825 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 audit: type=1400 audit(1574256172.952:61103): avc: denied { map } for pid=32374 comm="blkid" path="/lib/x86_64-linux-gnu/libblkid.so.1.1.0" dev="sda1" ino=2825 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 audit: type=1400 audit(1574256172.982:61104): avc: denied { map } for pid=32374 comm="blkid" path="/lib/x86_64-linux-gnu/libc-2.13.so" dev="sda1" ino=2784 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 binder: 32375:32378 ioctl 40046205 0 returned -22 audit: type=1400 audit(1574256172.982:61105): avc: denied { map } for pid=32374 comm="blkid" path="/lib/x86_64-linux-gnu/libc-2.13.so" dev="sda1" ino=2784 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 binder: 32375:32378 ERROR: BC_REGISTER_LOOPER called without request audit: type=1400 audit(1574256172.992:61106): avc: denied { map } for pid=32374 comm="blkid" path="/lib/x86_64-linux-gnu/libuuid.so.1.3.0" dev="sda1" ino=2819 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 binder: 32375:32378 ioctl c0306201 200000c0 returned -11 binder: 32375:32378 ioctl 40046205 0 returned -22 binder: 32375:32383 ERROR: BC_REGISTER_LOOPER called without request EXT4-fs (loop4): can't read group descriptor 0 binder: 32406:32415 ioctl 40046205 0 returned -22 binder: 32406:32415 ERROR: BC_REGISTER_LOOPER called without request binder: 32406:32415 ioctl c0306201 200000c0 returned -11 binder: 32406:32426 ioctl 40046205 0 returned -22 binder: 32406:32427 ERROR: BC_REGISTER_LOOPER called without request binder: 32444:32449 ioctl 40046205 0 returned -22 binder: 32444:32449 ERROR: BC_REGISTER_LOOPER called without request binder: 32444:32449 ioctl c0306201 200000c0 returned -11 binder: 32444:32449 ioctl 40046205 0 returned -22 binder: 32444:32451 ERROR: BC_REGISTER_LOOPER called without request binder: 32482:32486 ioctl 40046205 0 returned -22 binder: 32482:32486 ERROR: BC_REGISTER_LOOPER called without request binder: 32482:32486 ioctl c0306201 200000c0 returned -11 binder: 32482:32492 ERROR: BC_REGISTER_LOOPER called without request binder: 32482:32486 ioctl 40046205 0 returned -22 kauditd_printk_skb: 211 callbacks suppressed audit: type=1400 audit(1574256177.962:61318): avc: denied { map } for pid=32504 comm="blkid" path="/etc/ld.so.cache" dev="sda1" ino=2503 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 audit: type=1400 audit(1574256177.992:61319): avc: denied { map } for pid=32505 comm="modprobe" path="/lib/x86_64-linux-gnu/ld-2.13.so" dev="sda1" ino=2668 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 binder: 32508:32515 ERROR: BC_REGISTER_LOOPER called without request binder: 32508:32512 ioctl 40046205 0 returned -22 audit: type=1400 audit(1574256178.002:61320): avc: denied { map } for pid=32507 comm="blkid" path="/sbin/blkid" dev="sda1" ino=16128 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 audit: type=1400 audit(1574256178.012:61321): avc: denied { map } for pid=32507 comm="blkid" path="/sbin/blkid" dev="sda1" ino=16128 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 audit: type=1400 audit(1574256178.012:61322): avc: denied { map } for pid=32505 comm="modprobe" path="/lib/x86_64-linux-gnu/ld-2.13.so" dev="sda1" ino=2668 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 audit: type=1400 audit(1574256178.022:61323): avc: denied { map } for pid=32507 comm="blkid" path="/lib/x86_64-linux-gnu/ld-2.13.so" dev="sda1" ino=2668 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 audit: type=1400 audit(1574256178.022:61324): avc: denied { map } for pid=32504 comm="blkid" path="/lib/x86_64-linux-gnu/libblkid.so.1.1.0" dev="sda1" ino=2825 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 audit: type=1400 audit(1574256178.022:61325): avc: denied { map } for pid=32507 comm="blkid" path="/lib/x86_64-linux-gnu/ld-2.13.so" dev="sda1" ino=2668 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 audit: type=1400 audit(1574256178.032:61326): avc: denied { map } for pid=32504 comm="blkid" path="/lib/x86_64-linux-gnu/libblkid.so.1.1.0" dev="sda1" ino=2825 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. audit: type=1400 audit(1574256178.042:61327): avc: denied { map } for pid=32505 comm="modprobe" path="/etc/ld.so.cache" dev="sda1" ino=2503 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'.