INFO: task syz-executor.2:6774 blocked for more than 143 seconds. Not tainted 5.14.0-rc2-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:27224 pid: 6774 ppid: 4602 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4683 [inline] __schedule+0x93a/0x26f0 kernel/sched/core.c:5940 schedule+0xd3/0x270 kernel/sched/core.c:6019 rwsem_down_write_slowpath+0x7b9/0x11d0 kernel/locking/rwsem.c:1106 __down_write_common kernel/locking/rwsem.c:1261 [inline] __down_write_common kernel/locking/rwsem.c:1258 [inline] __down_write kernel/locking/rwsem.c:1270 [inline] down_write+0x137/0x150 kernel/locking/rwsem.c:1407 inode_lock include/linux/fs.h:774 [inline] process_measurement+0x1606/0x17e0 security/integrity/ima/ima_main.c:234 ima_file_check+0xb1/0x100 security/integrity/ima/ima_main.c:499 do_open fs/namei.c:3376 [inline] path_openat+0x15ca/0x27f0 fs/namei.c:3507 do_filp_open+0x1aa/0x400 fs/namei.c:3534 do_sys_openat2+0x16d/0x420 fs/open.c:1204 do_sys_open fs/open.c:1220 [inline] __do_sys_open fs/open.c:1228 [inline] __se_sys_open fs/open.c:1224 [inline] __x64_sys_open+0x119/0x1c0 fs/open.c:1224 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665e9 RSP: 002b:00007f877d92e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 000000000056c038 RCX: 00000000004665e9 RDX: 0000000000000000 RSI: 0000000000141042 RDI: 0000000020000080 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c038 R13: 00007ffcbd7ed1bf R14: 00007f877d92e300 R15: 0000000000022000 INFO: task syz-executor.2:6793 blocked for more than 143 seconds. Not tainted 5.14.0-rc2-syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.2 state:D stack:27328 pid: 6793 ppid: 4602 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:4683 [inline] __schedule+0x93a/0x26f0 kernel/sched/core.c:5940 schedule+0xd3/0x270 kernel/sched/core.c:6019 rwsem_down_write_slowpath+0x7b9/0x11d0 kernel/locking/rwsem.c:1106 __down_write_common kernel/locking/rwsem.c:1261 [inline] __down_write_common kernel/locking/rwsem.c:1258 [inline] __down_write kernel/locking/rwsem.c:1270 [inline] down_write+0x137/0x150 kernel/locking/rwsem.c:1407 inode_lock include/linux/fs.h:774 [inline] process_measurement+0x1606/0x17e0 security/integrity/ima/ima_main.c:234 ima_file_check+0xb1/0x100 security/integrity/ima/ima_main.c:499 do_open fs/namei.c:3376 [inline] path_openat+0x15ca/0x27f0 fs/namei.c:3507 do_filp_open+0x1aa/0x400 fs/namei.c:3534 do_sys_openat2+0x16d/0x420 fs/open.c:1204 do_sys_open fs/open.c:1220 [inline] __do_sys_open fs/open.c:1228 [inline] __se_sys_open fs/open.c:1224 [inline] __x64_sys_open+0x119/0x1c0 fs/open.c:1224 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4665e9 RSP: 002b:00007f877d8ec188 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 RAX: ffffffffffffffda RBX: 000000000056c1a8 RCX: 00000000004665e9 RDX: 0000000000000000 RSI: 000000000006e842 RDI: 0000000020000100 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c1a8 R13: 00007ffcbd7ed1bf R14: 00007f877d8ec300 R15: 0000000000022000 Showing all locks held in the system: 2 locks held by kworker/u4:1/10: #0: ffff888017fb5938 ((wq_completion)writeback){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline] #0: ffff888017fb5938 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic64_set include/asm-generic/atomic-instrumented.h:620 [inline] #0: ffff888017fb5938 ((wq_completion)writeback){+.+.}-{0:0}, at: atomic_long_set include/asm-generic/atomic-long.h:41 [inline] #0: ffff888017fb5938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:617 [inline] #0: ffff888017fb5938 ((wq_completion)writeback){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:644 [inline] #0: ffff888017fb5938 ((wq_completion)writeback){+.+.}-{0:0}, at: process_one_work+0x871/0x1630 kernel/workqueue.c:2247 #1: ffffc90000cf7db0 ((work_completion)(&(&wb->dwork)->work)){+.+.}-{0:0}, at: process_one_work+0x8a5/0x1630 kernel/workqueue.c:2251 1 lock held by khungtaskd/1605: #0: ffffffff8b97b9c0 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6446 2 locks held by rs:main Q:Reg/8160: #0: ffff8880340b6870 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xe9/0x100 fs/file.c:974 #1: ffff888028a08460 (sb_writers#5){.+.+}-{0:0}, at: ksys_write+0x12d/0x250 fs/read_write.c:658 1 lock held by syz-executor.0/10009: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/12551: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/12624: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/12671: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/19505: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/19748: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/19816: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/21459: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/24489: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/24504: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/24522: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/24568: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/27447: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/27562: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/27889: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/27926: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/29252: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/29269: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/29282: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/31376: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/32081: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/32120: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/32202: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/32230: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/32248: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/32268: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/32361: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/32379: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/32395: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/32405: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/1072: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/1121: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/1318: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 2 locks held by syz-executor.0/1658: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 #1: ffff888028a08460 (sb_writers#5){.+.+}-{0:0}, at: slow_acct_process kernel/acct.c:578 [inline] #1: ffff888028a08460 (sb_writers#5){.+.+}-{0:0}, at: acct_process+0x3d4/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/1950: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/2648: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/2650: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/3074: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/3076: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/3091: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/3096: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/3098: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/3106: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/3107: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/3108: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/3685: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/3796: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/4031: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/4138: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 1 lock held by syz-executor.0/6179: #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_get kernel/acct.c:161 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: slow_acct_process kernel/acct.c:576 [inline] #0: ffff888021613900 (&acct->lock#2){+.+.}-{3:3}, at: acct_process+0x1e1/0x500 kernel/acct.c:602 3 locks held by syz-executor.2/6766: #0: ffff888028a08460 (sb_writers#5){.+.+}-{0:0}, at: do_pwritev+0x1bc/0x270 fs/read_write.c:1036 #1: ffff8880824bac68 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: inode_lock include/linux/fs.h:774 [inline] #1: ffff8880824bac68 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: ext4_dio_write_iter fs/ext4/file.c:510 [inline] #1: ffff8880824bac68 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: ext4_file_write_iter+0xaeb/0x14e0 fs/ext4/file.c:678 #2: ffff8880824baa58 (&ei->i_data_sem){++++}-{3:3}, at: ext4_map_blocks+0x5e1/0x17d0 fs/ext4/inode.c:631 1 lock held by syz-executor.2/6774: #0: ffff8880824bac68 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: inode_lock include/linux/fs.h:774 [inline] #0: ffff8880824bac68 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: process_measurement+0x1606/0x17e0 security/integrity/ima/ima_main.c:234 1 lock held by syz-executor.2/6793: #0: ffff8880824bac68 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: inode_lock include/linux/fs.h:774 [inline] #0: ffff8880824bac68 (&sb->s_type->i_mutex_key#10){++++}-{3:3}, at: process_measurement+0x1606/0x17e0 security/integrity/ima/ima_main.c:234 ============================================= NMI backtrace for cpu 1 CPU: 1 PID: 1605 Comm: khungtaskd Not tainted 5.14.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:105 nmi_cpu_backtrace.cold+0x44/0xd7 lib/nmi_backtrace.c:105 nmi_trigger_cpumask_backtrace+0x1b3/0x230 lib/nmi_backtrace.c:62 trigger_all_cpu_backtrace include/linux/nmi.h:146 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline] watchdog+0xd0a/0xfc0 kernel/hung_task.c:295 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 6795 Comm: kworker/u4:2 Not tainted 5.14.0-rc2-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Workqueue: bat_events batadv_nc_worker RIP: 0010:hlock_class kernel/locking/lockdep.c:194 [inline] RIP: 0010:check_wait_context kernel/locking/lockdep.c:4689 [inline] RIP: 0010:__lock_acquire+0x455/0x54a0 kernel/locking/lockdep.c:4965 Code: b8 00 00 00 00 00 fc ff df 48 8b 54 24 38 44 0f b6 bd b8 00 00 00 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e ef 10 00 00 <41> 0f b7 6c 24 20 66 81 e5 ff 1f 0f b7 ed be 08 00 00 00 48 89 e8 RSP: 0018:ffffc90001fdf9f8 EFLAGS: 00000046 RAX: 0000000000000000 RBX: ffffffff8b97b9c0 RCX: ffffffff815aa796 RDX: 1ffff11003134be4 RSI: 0000000000000008 RDI: ffffffff8fcd3b78 RBP: ffffffff8fcd3ac0 R08: 0000000000000000 R09: ffffffff8fcd18a7 R10: fffffbfff1f9a314 R11: 0000000000000000 R12: ffff8880189a5f00 R13: ffff8880189a54c0 R14: 0000000000020000 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3e4070e010 CR3: 0000000016cb5000 CR4: 0000000000350ef0 Call Trace: lock_acquire kernel/locking/lockdep.c:5625 [inline] lock_acquire+0x1ab/0x510 kernel/locking/lockdep.c:5590 rcu_lock_acquire include/linux/rcupdate.h:267 [inline] rcu_read_lock include/linux/rcupdate.h:687 [inline] batadv_nc_process_nc_paths.part.0+0xec/0x3c0 net/batman-adv/network-coding.c:683 batadv_nc_process_nc_paths net/batman-adv/network-coding.c:675 [inline] batadv_nc_worker+0xafa/0xe50 net/batman-adv/network-coding.c:724 process_one_work+0x98d/0x1630 kernel/workqueue.c:2276 worker_thread+0x658/0x11f0 kernel/workqueue.c:2422 kthread+0x3e5/0x4d0 kernel/kthread.c:319 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295