====================================================== WARNING: possible circular locking dependency detected 4.19.37 #5 Not tainted ------------------------------------------------------ syz-executor.5/20161 is trying to acquire lock: 00000000e56d5e0e (&acct->lock#2){+.+.}, at: acct_pin_kill+0x27/0x100 kernel/acct.c:173 but task is already holding lock: kobject: 'loop4' (00000000614c330b): kobject_uevent_env 0000000024b65513 (sb_writers#4){.+.+}, at: sb_start_write include/linux/fs.h:1569 [inline] 0000000024b65513 (sb_writers#4){.+.+}, at: mnt_want_write+0x3f/0xc0 fs/namespace.c:360 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (sb_writers#4){.+.+}: percpu_down_read_preempt_disable include/linux/percpu-rwsem.h:36 [inline] percpu_down_read include/linux/percpu-rwsem.h:59 [inline] __sb_start_write+0x20b/0x360 fs/super.c:1387 sb_start_write include/linux/fs.h:1569 [inline] mnt_want_write+0x3f/0xc0 fs/namespace.c:360 ovl_want_write+0x76/0xa0 fs/overlayfs/util.c:24 ovl_xattr_set+0x53/0x5b0 fs/overlayfs/inode.c:332 ovl_posix_acl_xattr_set+0x33a/0x9a0 fs/overlayfs/super.c:908 kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' __vfs_setxattr+0x121/0x190 fs/xattr.c:149 __vfs_setxattr_noperm+0x11c/0x410 fs/xattr.c:180 vfs_setxattr+0xda/0x100 fs/xattr.c:223 setxattr+0x26f/0x380 fs/xattr.c:450 path_setxattr+0x197/0x1b0 fs/xattr.c:469 __do_sys_setxattr fs/xattr.c:484 [inline] __se_sys_setxattr fs/xattr.c:480 [inline] __x64_sys_setxattr+0xc4/0x150 fs/xattr.c:480 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #1 (&ovl_i_mutex_key[depth]){+.+.}: down_write+0x38/0x90 kernel/locking/rwsem.c:70 inode_lock include/linux/fs.h:738 [inline] ovl_write_iter+0x148/0xc20 fs/overlayfs/file.c:231 call_write_iter include/linux/fs.h:1811 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x58e/0x820 fs/read_write.c:487 __kernel_write+0x110/0x390 fs/read_write.c:506 kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env do_acct_process+0xd37/0x1150 kernel/acct.c:520 slow_acct_process kernel/acct.c:579 [inline] acct_process+0x568/0x61e kernel/acct.c:605 do_exit+0x17c0/0x2fa0 kernel/exit.c:866 do_group_exit+0x135/0x370 kernel/exit.c:979 get_signal+0x399/0x1d50 kernel/signal.c:2572 do_signal+0x95/0x1950 arch/x86/kernel/signal.c:816 exit_to_usermode_loop+0x244/0x2c0 arch/x86/entry/common.c:162 kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x52d/0x610 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #0 (&acct->lock#2){+.+.}: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3900 __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0xf7/0x1300 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 acct_pin_kill+0x27/0x100 kernel/acct.c:173 pin_kill+0x18f/0x860 fs/fs_pin.c:50 acct_on+0x574/0x790 kernel/acct.c:254 kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env __do_sys_acct kernel/acct.c:286 [inline] __se_sys_acct kernel/acct.c:273 [inline] __x64_sys_acct+0xae/0x200 kernel/acct.c:273 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe other info that might help us debug this: Chain exists of: &acct->lock#2 --> &ovl_i_mutex_key[depth] --> sb_writers#4 kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(sb_writers#4); lock(&ovl_i_mutex_key[depth]); lock(sb_writers#4); lock(&acct->lock#2); *** DEADLOCK *** 2 locks held by syz-executor.5/20161: #0: 00000000703f8a09 (acct_on_mutex){+.+.}, at: __do_sys_acct kernel/acct.c:285 [inline] #0: 00000000703f8a09 (acct_on_mutex){+.+.}, at: __se_sys_acct kernel/acct.c:273 [inline] #0: 00000000703f8a09 (acct_on_mutex){+.+.}, at: __x64_sys_acct+0xa6/0x200 kernel/acct.c:273 #1: 0000000024b65513 (sb_writers#4){.+.+}, at: sb_start_write include/linux/fs.h:1569 [inline] #1: 0000000024b65513 (sb_writers#4){.+.+}, at: mnt_want_write+0x3f/0xc0 fs/namespace.c:360 stack backtrace: CPU: 1 PID: 20161 Comm: syz-executor.5 Not tainted 4.19.37 #5 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+0x172/0x1f0 lib/dump_stack.c:113 print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1221 check_prev_add kernel/locking/lockdep.c:1861 [inline] check_prevs_add kernel/locking/lockdep.c:1974 [inline] validate_chain kernel/locking/lockdep.c:2415 [inline] __lock_acquire+0x2e6d/0x48f0 kernel/locking/lockdep.c:3411 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3900 __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0xf7/0x1300 kernel/locking/mutex.c:1072 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1087 acct_pin_kill+0x27/0x100 kernel/acct.c:173 pin_kill+0x18f/0x860 fs/fs_pin.c:50 acct_on+0x574/0x790 kernel/acct.c:254 __do_sys_acct kernel/acct.c:286 [inline] __se_sys_acct kernel/acct.c:273 [inline] __x64_sys_acct+0xae/0x200 kernel/acct.c:273 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x458da9 Code: ad b8 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 b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fd2b8f47c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000a3 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 0000000000458da9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000020000080 RBP: 000000000073bfa0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fd2b8f486d4 R13: 00000000004becd2 R14: 00000000004cfa50 R15: 00000000ffffffff kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' Process accounting resumed kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env Process accounting resumed kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' audit: type=1804 audit(2000000145.200:231): pid=7824 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.5" name="file0" dev="sda1" ino=17341 res=1 kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' 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 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' nla_parse: 25 callbacks suppressed netlink: 5 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 20 bytes leftover after parsing attributes in process `syz-executor.1'. kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' netlink: 5 bytes leftover after parsing attributes in process `syz-executor.1'. protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 netlink: 20 bytes leftover after parsing attributes in process `syz-executor.1'. kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env netlink: 5 bytes leftover after parsing attributes in process `syz-executor.1'. kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' netlink: 20 bytes leftover after parsing attributes in process `syz-executor.1'. kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' QAT: Invalid ioctl kobject: 'loop4' (00000000614c330b): kobject_uevent_env QAT: Invalid ioctl kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' netlink: 5 bytes leftover after parsing attributes in process `syz-executor.1'. QAT: Invalid ioctl QAT: Invalid ioctl kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' netlink: 20 bytes leftover after parsing attributes in process `syz-executor.1'. kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' QAT: Invalid ioctl kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' QAT: Invalid ioctl kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' netlink: 5 bytes leftover after parsing attributes in process `syz-executor.1'. kobject: 'loop4' (00000000614c330b): kobject_uevent_env QAT: Invalid ioctl kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' QAT: Invalid ioctl netlink: 20 bytes leftover after parsing attributes in process `syz-executor.1'. kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000614c330b): kobject_uevent_env QAT: Invalid ioctl kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' QAT: Invalid ioctl kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' QAT: Invalid ioctl QAT: Invalid ioctl kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' QAT: Invalid ioctl kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env QAT: Invalid ioctl kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' QAT: Invalid ioctl kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' QAT: Invalid ioctl kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env QAT: Invalid ioctl kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' QAT: Invalid ioctl QAT: Invalid ioctl kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' QAT: Invalid ioctl kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env QAT: Invalid ioctl QAT: Invalid ioctl kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' QAT: Invalid ioctl kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' QAT: Invalid ioctl kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' QAT: Invalid ioctl kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' QAT: Invalid ioctl QAT: Invalid ioctl kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' QAT: Invalid ioctl kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env syz-executor.3 invoked oom-killer: gfp_mask=0x7080c0(GFP_KERNEL_ACCOUNT|__GFP_ZERO), nodemask=(null), order=3, oom_score_adj=1000 kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' QAT: Invalid ioctl syz-executor.3 cpuset=syz3 mems_allowed=0-1 QAT: Invalid ioctl QAT: Invalid ioctl CPU: 1 PID: 21980 Comm: syz-executor.3 Not tainted 4.19.37 #5 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+0x172/0x1f0 lib/dump_stack.c:113 dump_header+0x15e/0x929 mm/oom_kill.c:441 kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env oom_kill_process.cold+0x10/0x6f5 mm/oom_kill.c:954 kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' out_of_memory mm/oom_kill.c:1129 [inline] out_of_memory+0x936/0x12d0 mm/oom_kill.c:1062 mem_cgroup_out_of_memory+0x1d2/0x240 mm/memcontrol.c:1397 QAT: Invalid ioctl mem_cgroup_oom mm/memcontrol.c:1723 [inline] try_charge+0x1028/0x15b0 mm/memcontrol.c:2285 memcg_kmem_charge_memcg+0x7c/0x130 mm/memcontrol.c:2615 memcg_kmem_charge+0x136/0x300 mm/memcontrol.c:2648 __alloc_pages_nodemask+0x3c6/0x760 mm/page_alloc.c:4413 QAT: Invalid ioctl __alloc_pages include/linux/gfp.h:473 [inline] __alloc_pages_node include/linux/gfp.h:486 [inline] alloc_pages_node include/linux/gfp.h:500 [inline] alloc_thread_stack_node kernel/fork.c:241 [inline] dup_task_struct kernel/fork.c:806 [inline] copy_process.part.0+0x3e0/0x7970 kernel/fork.c:1707 copy_process kernel/fork.c:1664 [inline] _do_fork+0x257/0xfe0 kernel/fork.c:2175 __do_sys_clone kernel/fork.c:2282 [inline] __se_sys_clone kernel/fork.c:2276 [inline] __x64_sys_clone+0xbf/0x150 kernel/fork.c:2276 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45b779 Code: ff 48 85 f6 0f 84 d7 8e fb ff 48 83 ee 10 48 89 4e 08 48 89 3e 48 89 d7 4c 89 c2 4d 89 c8 4c 8b 54 24 08 b8 38 00 00 00 0f 05 <48> 85 c0 0f 8c ae 8e fb ff 74 01 c3 31 ed 48 f7 c7 00 00 01 00 75 RSP: 002b:00007ffeeb0235d8 EFLAGS: 00000202 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 00007fb7af4ad700 RCX: 000000000045b779 RDX: 00007fb7af4ad9d0 RSI: 00007fb7af4acdb0 RDI: 00000000003d0f00 RBP: 00007ffeeb0237f0 R08: 00007fb7af4ad700 R09: 00007fb7af4ad700 R10: 00007fb7af4ad9d0 R11: 0000000000000202 R12: 0000000000000000 R13: 00007ffeeb02368f R14: 00007fb7af4ad9c0 R15: 000000000073bfac kobject: 'loop4' (00000000614c330b): kobject_uevent_env Task in /syz3 killed as a result of limit of /syz3 kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' memory: usage 307196kB, limit 307200kB, failcnt 1819 memory+swap: usage 0kB, limit 9007199254740988kB, failcnt 0 kmem: usage 0kB, limit 9007199254740988kB, failcnt 0 Memory cgroup stats for /syz3: cache:88KB rss:246504KB rss_huge:219136KB shmem:144KB mapped_file:0KB dirty:0KB writeback:0KB swap:0KB inactive_anon:0KB active_anon:246536KB inactive_file:0KB active_file:0KB unevictable:0KB Memory cgroup out of memory: Kill process 21553 (syz-executor.3) score 1113 or sacrifice child kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env Killed process 21553 (syz-executor.3) total-vm:72452kB, anon-rss:2192kB, file-rss:35812kB, shmem-rss:0kB kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' oom_reaper: reaped process 21553 (syz-executor.3), now anon-rss:0kB, file-rss:34852kB, shmem-rss:0kB kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' QAT: Invalid ioctl QAT: Invalid ioctl kobject: 'loop4' (00000000614c330b): kobject_uevent_env QAT: Invalid ioctl kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' QAT: Invalid ioctl QAT: Invalid ioctl kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env QAT: Invalid ioctl kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' QAT: Invalid ioctl kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' QAT: Invalid ioctl QAT: Invalid ioctl kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' QAT: Invalid ioctl QAT: Invalid ioctl kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' QAT: Invalid ioctl kobject: 'loop4' (00000000614c330b): kobject_uevent_env QAT: Invalid ioctl kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000614c330b): kobject_uevent_env QAT: Invalid ioctl QAT: Invalid ioctl kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' QAT: Invalid ioctl kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' QAT: Invalid ioctl kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl 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 QAT: Invalid ioctl protocol 88fb is buggy, dev hsr_slave_0 QAT: Invalid ioctl protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' QAT: Invalid ioctl kobject: 'loop4' (00000000614c330b): kobject_uevent_env QAT: Invalid ioctl QAT: Invalid ioctl kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' QAT: Invalid ioctl QAT: Invalid ioctl kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env QAT: Invalid ioctl kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' QAT: Invalid ioctl QAT: Invalid ioctl kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' QAT: Invalid ioctl QAT: Invalid ioctl kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' QAT: Invalid ioctl kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_0 QAT: Invalid ioctl kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' QAT: Invalid ioctl kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' CPU: 0 PID: 25598 Comm: syz-executor.3 Not tainted 4.19.37 #5 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+0x172/0x1f0 lib/dump_stack.c:113 kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env __should_failslab+0x121/0x190 mm/failslab.c:32 kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] kmem_cache_alloc_trace+0x2cf/0x760 mm/slab.c:3623 kobject: 'loop4' (00000000614c330b): kobject_uevent_env kmalloc include/linux/slab.h:515 [inline] kzalloc include/linux/slab.h:709 [inline] rxrpc_alloc_local net/rxrpc/local_object.c:83 [inline] rxrpc_lookup_local+0x69b/0x1b80 net/rxrpc/local_object.c:283 kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' rxrpc_sendmsg+0x387/0x5f0 net/rxrpc/af_rxrpc.c:572 kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:632 kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' ___sys_sendmsg+0x3e2/0x930 net/socket.c:2115 kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env __sys_sendmmsg+0x1bf/0x4e0 net/socket.c:2210 kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' __do_sys_sendmmsg net/socket.c:2239 [inline] __se_sys_sendmmsg net/socket.c:2236 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2236 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe kobject: 'loop4' (00000000614c330b): kobject_uevent_env RIP: 0033:0x458da9 Code: ad b8 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 b8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' RSP: 002b:00007fb7af4cdc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007fb7af4cdc90 RCX: 0000000000458da9 RDX: 0000000000000001 RSI: 0000000020008300 RDI: 0000000000000003 kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fb7af4ce6d4 R13: 00000000004c5fac R14: 00000000004da760 R15: 0000000000000004 kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (0000000059a5a8c5): kobject_uevent_env kobject: 'loop2' (0000000059a5a8c5): fill_kobj_path: path = '/devices/virtual/block/loop2' FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 kobject: 'loop4' (00000000614c330b): kobject_uevent_env kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (00000000b5fe6017): kobject_uevent_env kobject: 'loop3' (00000000b5fe6017): fill_kobj_path: path = '/devices/virtual/block/loop3' CPU: 1 PID: 25751 Comm: syz-executor.3 Not tainted 4.19.37 #5 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+0x172/0x1f0 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0xa/0x1b lib/fault-inject.c:149 kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' __should_failslab+0x121/0x190 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:424 [inline] slab_alloc mm/slab.c:3383 [inline] kmem_cache_alloc+0x2b1/0x700 mm/slab.c:3557 kobject: 'loop4' (00000000614c330b): kobject_uevent_env sock_alloc_inode+0x1d/0x260 net/socket.c:244 alloc_inode+0x66/0x190 fs/inode.c:210 new_inode_pseudo+0x19/0xf0 fs/inode.c:903 sock_alloc+0x41/0x270 net/socket.c:547 __sock_create+0xc0/0x750 net/socket.c:1240 sock_create_kern+0x3b/0x50 net/socket.c:1322 kobject: 'loop4' (00000000614c330b): fill_kobj_path: path = '/devices/virtual/block/loop4' rxrpc_open_socket net/rxrpc/local_object.c:119 [inline] rxrpc_lookup_local+0xb86/0x1b80 net/rxrpc/local_object.c:287 kobject: 'loop0' (00000000bb7303e4): kobject_uevent_env rxrpc_sendmsg+0x387/0x5f0 net/rxrpc/af_rxrpc.c:572 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xdd/0x130 net/socket.c:632 ___sys_sendmsg+0x3e2/0x930 net/socket.c:2115 kobject: 'loop0' (00000000bb7303e4): fill_kobj_path: path = '/devices/virtual/block/loop0' __sys_sendmmsg+0x1bf/0x4e0 net/socket.c:2210 __do_sys_sendmmsg net/socket.c:2239 [inline] __se_sys_sendmmsg net/socket.c:2236 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2236 do_syscall_64+0x103/0x610 arch/x86/entry/common.c:290