audit: type=1804 audit(1574278085.718:2911): pid=29013 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir065923927/syzkaller.0cHxuG/693/file0" dev="sda1" ino=16753 res=1 ============================= 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.1/29023: #0: 00000000c52d547b (&sb->s_type->i_mutex_key#12){+.+.}, at: inode_lock include/linux/fs.h:747 [inline] #0: 00000000c52d547b (&sb->s_type->i_mutex_key#12){+.+.}, at: memfd_add_seals mm/memfd.c:199 [inline] #0: 00000000c52d547b (&sb->s_type->i_mutex_key#12){+.+.}, at: memfd_fcntl+0x235/0x1750 mm/memfd.c:249 #1: 00000000e1424bad (&(&(&mapping->i_pages)->xa_lock)->rlock){-.-.}, at: spin_lock_irq include/linux/spinlock.h:354 [inline] #1: 00000000e1424bad (&(&(&mapping->i_pages)->xa_lock)->rlock){-.-.}, at: memfd_tag_pins mm/memfd.c:42 [inline] #1: 00000000e1424bad (&(&(&mapping->i_pages)->xa_lock)->rlock){-.-.}, at: memfd_wait_for_pins mm/memfd.c:83 [inline] #1: 00000000e1424bad (&(&(&mapping->i_pages)->xa_lock)->rlock){-.-.}, at: memfd_add_seals mm/memfd.c:217 [inline] #1: 00000000e1424bad (&(&(&mapping->i_pages)->xa_lock)->rlock){-.-.}, at: memfd_fcntl+0x4bc/0x1750 mm/memfd.c:249 stack backtrace: CPU: 1 PID: 29023 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:00007f96ff286c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000048 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a639 RDX: 0000000000000008 RSI: 0000000000000409 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f96ff2876d4 R13: 00000000004c1068 R14: 00000000004d3c60 R15: 00000000ffffffff protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 netlink: 'syz-executor.2': attribute type 22 has an invalid length. bond0: option ad_select: unable to set because the bond device is up protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 audit: type=1804 audit(1574278086.678:2912): pid=29132 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir065923927/syzkaller.0cHxuG/694/file0" dev="sda1" ino=16532 res=1 audit: type=1804 audit(1574278086.688:2913): pid=29173 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir127582922/syzkaller.acdX7G/684/file0" dev="sda1" ino=16593 res=1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 audit: type=1804 audit(1574278087.368:2914): pid=29336 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir127582922/syzkaller.acdX7G/685/file0" dev="sda1" ino=16546 res=1 FAT-fs (loop2): error, fat_get_cluster: invalid cluster chain (i_pos 17) FAT-fs (loop2): Filesystem has been set read-only FAT-fs (loop2): error, fat_free: invalid cluster chain (i_pos 17) audit: type=1804 audit(1574278087.698:2915): pid=29342 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir065923927/syzkaller.0cHxuG/695/file0" dev="sda1" ino=16532 res=1 audit: type=1800 audit(1574278088.378:2916): pid=29480 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=collect_data cause=failed(directio) comm="syz-executor.2" name="file0" dev="sda1" ino=16946 res=0 rtc_cmos 00:00: Alarms can be up to one day in the future net_ratelimit: 16 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 overlayfs: unrecognized mount option "l/werdir=.:file0(;A-~" or missing value kauditd_printk_skb: 10 callbacks suppressed audit: type=1804 audit(1574278090.718:2927): pid=30028 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor.0" name="/root/syzkaller-testdir127582922/syzkaller.acdX7G/689/file0" dev="sda1" ino=17041 res=1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 rxrpc: Assertion failed ------------[ cut here ]------------ kernel BUG at net/rxrpc/local_object.c:437! invalid opcode: 0000 [#1] PREEMPT SMP KASAN kobject: 'loop3' (000000002214cec5): kobject_uevent_env CPU: 1 PID: 7654 Comm: kworker/1:4 Not tainted 4.19.84 #0 kobject: 'loop3' (000000002214cec5): fill_kobj_path: path = '/devices/virtual/block/loop3' Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: krxrpcd rxrpc_local_processor RIP: 0010:rxrpc_local_destroyer net/rxrpc/local_object.c:437 [inline] RIP: 0010:rxrpc_local_processor.cold+0x24/0x29 net/rxrpc/local_object.c:470 Code: 1f c2 fe fa 0f 0b e8 c4 5c 14 fb 48 c7 c7 40 42 f1 87 e8 0c c2 fe fa 0f 0b e8 b1 5c 14 fb 48 c7 c7 40 42 f1 87 e8 f9 c1 fe fa <0f> 0b 90 90 90 55 48 89 e5 41 57 49 89 ff 41 56 41 55 41 54 53 48 kobject: 'loop3' (000000002214cec5): kobject_uevent_env RSP: 0018:ffff888053c7fce8 EFLAGS: 00010282 RAX: 0000000000000017 RBX: ffff88808e836038 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff81559456 RDI: ffffed100a78ff8f RBP: ffff888053c7fd30 R08: 0000000000000017 R09: ffffed1015d25079 R10: ffffed1015d25078 R11: ffff8880ae9283c7 R12: ffff88808fdf4f48 R13: ffff8880961fafc8 R14: ffff88808e836000 R15: ffff88803dedb680 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fefca281000 CR3: 000000008c3af000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kobject: 'loop3' (000000002214cec5): fill_kobj_path: path = '/devices/virtual/block/loop3' DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: process_one_work+0x989/0x1750 kernel/workqueue.c:2153 kobject: 'loop3' (000000002214cec5): kobject_uevent_env kobject: 'loop3' (000000002214cec5): fill_kobj_path: path = '/devices/virtual/block/loop3' worker_thread+0x98/0xe40 kernel/workqueue.c:2296 kobject: 'loop5' (00000000e137e438): kobject_uevent_env kthread+0x354/0x420 kernel/kthread.c:246 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:415 Modules linked in: kobject: 'loop5' (00000000e137e438): fill_kobj_path: path = '/devices/virtual/block/loop5' protocol 88fb is buggy, dev hsr_slave_0 audit: type=1800 audit(1574278091.018:2928): pid=30167 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=collect_data cause=failed(directio) comm="syz-executor.4" name="file0" dev="sda1" ino=16501 res=0 protocol 88fb is buggy, dev hsr_slave_1 audit: type=1804 audit(1574278091.018:2929): pid=30167 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir065923927/syzkaller.0cHxuG/699/file0" dev="sda1" ino=16501 res=1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 ---[ end trace 63874fa2c3771d01 ]--- RIP: 0010:rxrpc_local_destroyer net/rxrpc/local_object.c:437 [inline] RIP: 0010:rxrpc_local_processor.cold+0x24/0x29 net/rxrpc/local_object.c:470 Code: 1f c2 fe fa 0f 0b e8 c4 5c 14 fb 48 c7 c7 40 42 f1 87 e8 0c c2 fe fa 0f 0b e8 b1 5c 14 fb 48 c7 c7 40 42 f1 87 e8 f9 c1 fe fa <0f> 0b 90 90 90 55 48 89 e5 41 57 49 89 ff 41 56 41 55 41 54 53 48 RSP: 0018:ffff888053c7fce8 EFLAGS: 00010282 RAX: 0000000000000017 RBX: ffff88808e836038 RCX: 0000000000000000 kobject: 'kvm' (00000000e7359d88): kobject_uevent_env RDX: 0000000000000000 RSI: ffffffff81559456 RDI: ffffed100a78ff8f RBP: ffff888053c7fd30 R08: 0000000000000017 R09: ffffed1015d25079 R10: ffffed1015d25078 R11: ffff8880ae9283c7 R12: ffff88808fdf4f48 R13: ffff8880961fafc8 R14: ffff88808e836000 R15: ffff88803dedb680 FS: 0000000000000000(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: 'kvm' (00000000e7359d88): kobject_uevent_env CR2: 00007fefca281000 CR3: 000000008c3af000 CR4: 00000000001426e0 kobject: 'kvm' (00000000e7359d88): fill_kobj_path: path = '/devices/virtual/misc/kvm' DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400