SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=3657 comm=syz-executor.0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=3657 comm=syz-executor.0 ============================= WARNING: suspicious RCU usage 4.14.154+ #0 Not tainted EXT4-fs (loop1): VFS: Can't find ext4 filesystem ----------------------------- 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.2/3697: #0: (&sb->s_type->i_mutex_key#10){+.+.}, at: [<00000000257a99c7>] inode_lock include/linux/fs.h:724 [inline] #0: (&sb->s_type->i_mutex_key#10){+.+.}, at: [<00000000257a99c7>] shmem_add_seals+0x12b/0xf80 mm/shmem.c:2831 #1: (&(&mapping->tree_lock)->rlock){-.-.}, at: [<000000005b5bd169>] spin_lock_irq include/linux/spinlock.h:342 [inline] #1: (&(&mapping->tree_lock)->rlock){-.-.}, at: [<000000005b5bd169>] shmem_tag_pins mm/shmem.c:2685 [inline] #1: (&(&mapping->tree_lock)->rlock){-.-.}, at: [<000000005b5bd169>] shmem_wait_for_pins mm/shmem.c:2726 [inline] #1: (&(&mapping->tree_lock)->rlock){-.-.}, at: [<000000005b5bd169>] shmem_add_seals+0x2e1/0xf80 mm/shmem.c:2843 stack backtrace: CPU: 1 PID: 3697 Comm: syz-executor.2 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:00007f40e529cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000048 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a639 RDX: 0000000000000008 RSI: 0000000000000409 RDI: 0000000000000004 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f40e529d6d4 R13: 00000000004c1068 R14: 00000000004d3c60 R15: 00000000ffffffff EXT4-fs (loop1): VFS: Can't find ext4 filesystem EXT4-fs (loop1): VFS: Can't find ext4 filesystem EXT4-fs (loop1): VFS: Can't find ext4 filesystem EXT4-fs (loop1): VFS: Can't find ext4 filesystem EXT4-fs (loop1): VFS: Can't find ext4 filesystem EXT4-fs (loop1): VFS: Can't find ext4 filesystem netlink: 224 bytes leftover after parsing attributes in process `syz-executor.3'. PF_BRIDGE: RTM_DELNEIGH with unknown ifindex netlink: 224 bytes leftover after parsing attributes in process `syz-executor.3'. PF_BRIDGE: RTM_DELNEIGH with unknown ifindex EXT4-fs (loop1): VFS: Can't find ext4 filesystem EXT4-fs (loop1): VFS: Can't find ext4 filesystem EXT4-fs (loop1): VFS: Can't find ext4 filesystem EXT4-fs (loop1): VFS: Can't find ext4 filesystem audit: type=1400 audit(2000000018.910:105): avc: denied { create } for pid=3885 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_netfilter_socket permissive=1 EXT4-fs (loop1): VFS: Can't find ext4 filesystem EXT4-fs (loop1): VFS: Can't find ext4 filesystem audit: type=1400 audit(2000000019.850:106): avc: denied { map } for pid=3912 comm="syz-executor.4" path="/root/syzkaller-testdir308340569/syzkaller.qeUwEE/62/bus" dev="sda1" ino=16736 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 EXT4-fs (loop1): VFS: Can't find ext4 filesystem EXT4-fs (loop1): VFS: Can't find ext4 filesystem EXT4-fs (loop1): VFS: Can't find ext4 filesystem IPv6: addrconf: prefix option has invalid lifetime EXT4-fs (loop1): VFS: Can't find ext4 filesystem selinux_nlmsg_perm: 3094 callbacks suppressed SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=3990 comm=syz-executor.0 audit: type=1326 audit(2000000020.970:107): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=3988 comm="syz-executor.4" exe="/root/syz-executor.4" sig=31 arch=c000003e syscall=228 compat=0 ip=0x45d47a code=0x0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=3990 comm=syz-executor.0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=3990 comm=syz-executor.0 EXT4-fs (loop1): VFS: Can't find ext4 filesystem SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=3990 comm=syz-executor.0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=3990 comm=syz-executor.0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=3990 comm=syz-executor.0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=3990 comm=syz-executor.0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=3990 comm=syz-executor.0 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=3990 comm=syz-executor.0 EXT4-fs (loop1): VFS: Can't find ext4 filesystem SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=3990 comm=syz-executor.0 EXT4-fs (loop1): VFS: Can't find ext4 filesystem audit: type=1326 audit(2000000021.630:108): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 pid=3988 comm="syz-executor.4" exe="/root/syz-executor.4" sig=31 arch=c000003e syscall=228 compat=0 ip=0x45d47a code=0x0 EXT4-fs (loop1): VFS: Can't find ext4 filesystem binder: 4061:4063 ioctl c0306201 200003c0 returned -14 EXT4-fs (loop1): VFS: Can't find ext4 filesystem EXT4-fs (loop1): VFS: Can't find ext4 filesystem EXT4-fs (loop1): VFS: Can't find ext4 filesystem EXT4-fs (loop1): VFS: Can't find ext4 filesystem EXT4-fs (loop1): Unsupported filesystem blocksize 0 (1923657432 log_block_size) EXT4-fs (loop1): Unsupported filesystem blocksize 0 (1923657432 log_block_size) audit: type=1400 audit(2000000023.290:109): avc: denied { write } for pid=4165 comm="syz-executor.4" 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 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. EXT4-fs (loop1): Unsupported filesystem blocksize 0 (1923657432 log_block_size) EXT4-fs (loop1): Unsupported filesystem blocksize 0 (1923657432 log_block_size) F2FS-fs (loop4): Magic Mismatch, valid(0xf2f52010) - read(0x0) F2FS-fs (loop4): Can't find valid F2FS filesystem in 1th superblock F2FS-fs (loop4): Invalid segment/section count (72, 1714619780 x 3) F2FS-fs (loop4): Can't find valid F2FS filesystem in 2th superblock EXT4-fs (loop1): Unsupported filesystem blocksize 0 (1923657432 log_block_size) audit: type=1400 audit(2000000024.680:110): avc: denied { map } for pid=4242 comm="syz-executor.3" path="/dev/binder3" dev="sda1" ino=17342 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1 EXT4-fs (loop1): Unsupported filesystem blocksize 0 (1923657432 log_block_size) EXT4-fs (loop1): Unsupported filesystem blocksize 0 (1923657432 log_block_size) binder: 4273:4277 ioctl 4c00 5 returned -22 EXT4-fs (loop1): Unsupported filesystem blocksize 0 (1923657432 log_block_size) EXT4-fs (loop2): Unsupported filesystem blocksize 0 (1923657432 log_block_size) EXT4-fs (loop1): Unsupported filesystem blocksize 0 (1923657432 log_block_size) EXT4-fs (loop2): Unsupported filesystem blocksize 0 (1923657432 log_block_size) audit: type=1400 audit(2000000025.540:111): avc: denied { map } for pid=4319 comm="syz-executor.4" path=2F6D656D66643A2D42D54E49C56ABA707070F00884A26D202864656C6574656429 dev="tmpfs" ino=80883 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:tmpfs_t:s0 tclass=file permissive=1 EXT4-fs (loop1): Unsupported filesystem blocksize 0 (1923657432 log_block_size)