SELinux: unrecognized netlink message: protocol=0 nlmsg_type=39 sclass=netlink_route_socket pig=20936 comm=syz-executor.3 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=25964 sclass=netlink_route_socket pig=20945 comm=syz-executor.5 ============================= WARNING: suspicious RCU usage 4.19.84 #0 Not tainted ----------------------------- include/linux/radix-tree.h:241 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.1/20946: #0: 00000000986b4d46 (&sb->s_type->i_mutex_key#12){+.+.}, at: inode_lock include/linux/fs.h:747 [inline] #0: 00000000986b4d46 (&sb->s_type->i_mutex_key#12){+.+.}, at: memfd_add_seals mm/memfd.c:199 [inline] #0: 00000000986b4d46 (&sb->s_type->i_mutex_key#12){+.+.}, at: memfd_fcntl+0x235/0x1750 mm/memfd.c:249 #1: 000000006738233a (&(&(&mapping->i_pages)->xa_lock)->rlock){-.-.}, at: spin_lock_irq include/linux/spinlock.h:354 [inline] #1: 000000006738233a (&(&(&mapping->i_pages)->xa_lock)->rlock){-.-.}, at: memfd_tag_pins mm/memfd.c:42 [inline] #1: 000000006738233a (&(&(&mapping->i_pages)->xa_lock)->rlock){-.-.}, at: memfd_wait_for_pins mm/memfd.c:83 [inline] #1: 000000006738233a (&(&(&mapping->i_pages)->xa_lock)->rlock){-.-.}, at: memfd_add_seals mm/memfd.c:217 [inline] #1: 000000006738233a (&(&(&mapping->i_pages)->xa_lock)->rlock){-.-.}, at: memfd_fcntl+0x4bc/0x1750 mm/memfd.c:249 stack backtrace: CPU: 0 PID: 20946 Comm: syz-executor.1 Not tainted 4.19.84 #0 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+0x197/0x210 lib/dump_stack.c:118 lockdep_rcu_suspicious+0x153/0x15d kernel/locking/lockdep.c:4539 radix_tree_deref_slot include/linux/radix-tree.h:241 [inline] radix_tree_deref_slot include/linux/radix-tree.h:239 [inline] memfd_tag_pins mm/memfd.c:44 [inline] memfd_wait_for_pins mm/memfd.c:83 [inline] memfd_add_seals mm/memfd.c:217 [inline] memfd_fcntl+0xfdf/0x1750 mm/memfd.c:249 do_fcntl+0x200/0x1020 fs/fcntl.c:421 __do_sys_fcntl fs/fcntl.c:463 [inline] __se_sys_fcntl fs/fcntl.c:448 [inline] __x64_sys_fcntl+0x16d/0x1e0 fs/fcntl.c:448 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45a639 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007feacf506c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000048 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a639 RDX: 000000000000000f RSI: 0000000000000409 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007feacf5076d4 R13: 00000000004c1068 R14: 00000000004d3c60 R15: 00000000ffffffff SELinux: unrecognized netlink message: protocol=0 nlmsg_type=802 sclass=netlink_route_socket pig=20946 comm=syz-executor.1 device bond0 entered promiscuous mode device bond_slave_0 entered promiscuous mode device bond_slave_1 entered promiscuous mode 8021q: adding VLAN 0 to HW filter on device bond0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=802 sclass=netlink_route_socket pig=20973 comm=syz-executor.1 REISERFS warning (device loop0): super-6509 reiserfs_parse_options: nolargeio option is no longer supported audit: type=1400 audit(1574097374.086:186): avc: denied { map } for pid=20942 comm="syz-executor.1" path="socket:[74186]" dev="sockfs" ino=74186 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_route_socket permissive=1 REISERFS warning (device loop0): super-6509 reiserfs_parse_options: nolargeio option is no longer supported device bond0 left promiscuous mode device bond_slave_0 left promiscuous mode device bond_slave_1 left promiscuous mode device bond0 entered promiscuous mode device bond_slave_0 entered promiscuous mode device bond_slave_1 entered promiscuous mode 8021q: adding VLAN 0 to HW filter on device bond0 bond_slave_1: mtu less than device minimum SELinux: unrecognized netlink message: protocol=0 nlmsg_type=802 sclass=netlink_route_socket pig=21001 comm=syz-executor.1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=802 sclass=netlink_route_socket pig=21021 comm=syz-executor.5 REISERFS warning (device loop0): super-6509 reiserfs_parse_options: nolargeio option is no longer supported audit: type=1400 audit(1574097374.786:187): avc: denied { validate_trans } for pid=21011 comm="syz-executor.2" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:security_t:s0 tclass=security permissive=1 REISERFS warning (device loop0): super-6509 reiserfs_parse_options: nolargeio option is no longer supported SELinux: unrecognized netlink message: protocol=0 nlmsg_type=802 sclass=netlink_route_socket pig=21035 comm=syz-executor.5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=802 sclass=netlink_route_socket pig=21022 comm=syz-executor.1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=802 sclass=netlink_route_socket pig=21052 comm=syz-executor.5 REISERFS warning (device loop0): super-6509 reiserfs_parse_options: nolargeio option is no longer supported REISERFS warning (device loop0): super-6509 reiserfs_parse_options: nolargeio option is no longer supported audit: type=1400 audit(1574097375.796:188): avc: denied { getattr } for pid=21090 comm="syz-executor.2" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_crypto_socket permissive=1 REISERFS warning (device loop0): super-6509 reiserfs_parse_options: nolargeio option is no longer supported hfsplus: unable to find HFS+ superblock REISERFS warning (device loop0): super-6509 reiserfs_parse_options: nolargeio option is no longer supported hfsplus: unable to find HFS+ superblock REISERFS warning (device loop0): super-6509 reiserfs_parse_options: nolargeio option is no longer supported REISERFS warning (device loop0): reiserfs_fill_super: Cannot allocate commit workqueue REISERFS warning (device loop0): super-6509 reiserfs_parse_options: nolargeio option is no longer supported REISERFS warning (device loop0): reiserfs_fill_super: Cannot allocate commit workqueue hfsplus: unable to find HFS+ superblock REISERFS warning (device loop0): super-6509 reiserfs_parse_options: nolargeio option is no longer supported selinux_nlmsg_perm: 21 callbacks suppressed SELinux: unrecognized netlink message: protocol=0 nlmsg_type=802 sclass=netlink_route_socket pig=21255 comm=syz-executor.2 hfsplus: unable to find HFS+ superblock REISERFS warning (device loop0): super-6509 reiserfs_parse_options: nolargeio option is no longer supported REISERFS warning (device loop0): reiserfs_fill_super: Cannot allocate commit workqueue IPVS: set_ctl: invalid protocol: 135 172.20.20.187:0 hfsplus: unable to find HFS+ superblock REISERFS warning (device loop0): super-6509 reiserfs_parse_options: nolargeio option is no longer supported REISERFS warning (device loop0): super-6509 reiserfs_parse_options: nolargeio option is no longer supported REISERFS warning (device loop0): super-6509 reiserfs_parse_options: nolargeio option is no longer supported REISERFS warning (device loop0): reiserfs_fill_super: Cannot allocate commit workqueue SELinux: unrecognized netlink message: protocol=0 nlmsg_type=13561 sclass=netlink_route_socket pig=21385 comm=syz-executor.3 hfsplus: unable to find HFS+ superblock SELinux: unrecognized netlink message: protocol=0 nlmsg_type=13561 sclass=netlink_route_socket pig=21385 comm=syz-executor.3 REISERFS warning (device loop0): super-6509 reiserfs_parse_options: nolargeio option is no longer supported REISERFS warning (device loop0): reiserfs_fill_super: Cannot allocate commit workqueue hfsplus: unable to find HFS+ superblock audit: type=1400 audit(1574097380.686:189): avc: denied { map } for pid=21421 comm="syz-executor.3" path="pipe:[75201]" dev="pipefs" ino=75201 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=fifo_file permissive=1 REISERFS warning (device loop0): super-6509 reiserfs_parse_options: nolargeio option is no longer supported REISERFS warning (device loop0): super-6509 reiserfs_parse_options: nolargeio option is no longer supported REISERFS warning (device loop0): super-6509 reiserfs_parse_options: nolargeio option is no longer supported hfsplus: unable to find HFS+ superblock REISERFS warning (device loop0): super-6509 reiserfs_parse_options: nolargeio option is no longer supported REISERFS warning (device loop0): super-6509 reiserfs_parse_options: nolargeio option is no longer supported REISERFS warning (device loop0): super-6509 reiserfs_parse_options: nolargeio option is no longer supported REISERFS warning (device loop0): super-6509 reiserfs_parse_options: nolargeio option is no longer supported hfsplus: unable to find HFS+ superblock REISERFS warning (device loop0): reiserfs_fill_super: Cannot allocate commit workqueue