netlink: 116 bytes leftover after parsing attributes in process `syz-executor.2'. INFO: task syz-executor.6:8735 blocked for more than 143 seconds. Not tainted 5.10.242 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.6 state:D stack:27936 pid: 8735 ppid: 287 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:3799 [inline] __schedule+0x824/0x1ea0 kernel/sched/core.c:4547 schedule+0xcb/0x270 kernel/sched/core.c:4625 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4684 __mutex_lock_common kernel/locking/mutex.c:1047 [inline] __mutex_lock+0x7a8/0x10b0 kernel/locking/mutex.c:1109 perf_event_ctx_lock_nested+0x243/0x4f0 kernel/events/core.c:1392 perf_event_ctx_lock kernel/events/core.c:1405 [inline] perf_event_release_kernel+0x3c1/0xc80 kernel/events/core.c:5112 perf_release+0x33/0x50 kernel/events/core.c:5223 __fput+0x285/0x9f0 fs/file_table.c:281 task_work_run+0xe2/0x1a0 kernel/task_work.c:185 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop kernel/entry/common.c:172 [inline] exit_to_user_mode_prepare+0x186/0x190 kernel/entry/common.c:199 syscall_exit_to_user_mode+0x38/0x1d0 kernel/entry/common.c:274 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f3e1958f72b RSP: 002b:00007fff3cbbad60 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007f3e1958f72b RDX: ffffffffffffffbc RSI: 0000000000000081 RDI: 0000000000000006 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 00007f3e196f7688 R13: 00007fff3cbbae80 R14: 00007f3e196eff60 R15: 00000000001496b7 INFO: task syz-executor.6:8745 blocked for more than 143 seconds. Not tainted 5.10.242 #1 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz-executor.6 state:D stack:29168 pid: 8745 ppid: 287 flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:3799 [inline] __schedule+0x824/0x1ea0 kernel/sched/core.c:4547 schedule+0xcb/0x270 kernel/sched/core.c:4625 schedule_preempt_disabled+0xc/0x20 kernel/sched/core.c:4684 __mutex_lock_common kernel/locking/mutex.c:1047 [inline] __mutex_lock+0x7a8/0x10b0 kernel/locking/mutex.c:1109 mutex_lock_double kernel/events/core.c:11738 [inline] __perf_event_ctx_lock_double kernel/events/core.c:11882 [inline] __do_sys_perf_event_open+0x1244/0x2e60 kernel/events/core.c:12155 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 RIP: 0033:0x7f3e195dcb19 RSP: 002b:00007f3e16b52188 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: ffffffffffffffda RBX: 00007f3e196eff60 RCX: 00007f3e195dcb19 RDX: 0000000000000000 RSI: 0000000000000235 RDI: 0000000020001d80 RBP: 00007f3e19636f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff3cbbacff R14: 00007f3e16b52300 R15: 0000000000022000 Showing all locks held in the system: 1 lock held by khungtaskd/23: #0: ffffffff84ff9a60 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x27b kernel/locking/lockdep.c:6410 2 locks held by jbd2/sda-8/77: #0: ffff88806ce3b2d8 (&rq->lock){-.-.}-{2:2}, at: rq_lock kernel/sched/sched.h:1296 [inline] #0: ffff88806ce3b2d8 (&rq->lock){-.-.}-{2:2}, at: __schedule+0x1be/0x1ea0 kernel/sched/core.c:4465 #1: ffff888008b6bc18 (&host->lock){-.-.}-{2:2}, at: ktime_get_ns include/linux/timekeeping.h:154 [inline] #1: ffff888008b6bc18 (&host->lock){-.-.}-{2:2}, at: __delayacct_blkio_start+0x3d/0x80 kernel/delayacct.c:61 1 lock held by in:imklog/177: 2 locks held by rs:main Q:Reg/178: #0: ffff88800d0420f0 (&f->f_pos_lock){+.+.}-{3:3}, at: __fdget_pos+0xf1/0x190 fs/file.c:997 #1: ffff88800fb86438 (sb_writers#3){.+.+}-{0:0}, at: ksys_write+0x12d/0x260 fs/read_write.c:658 1 lock held by syz-executor.6/8735: #0: ffff8880501f4cb0 (&ctx->mutex){+.+.}-{3:3}, at: perf_event_ctx_lock_nested+0x243/0x4f0 kernel/events/core.c:1392 3 locks held by syz-executor.6/8745: #0: ffff88804808c6d8 (&sig->exec_update_lock){++++}-{3:3}, at: __do_sys_perf_event_open+0xfc1/0x2e60 kernel/events/core.c:12137 #1: ffff8880501f4cb0 (&ctx->mutex){+.+.}-{3:3}, at: mutex_lock_double kernel/events/core.c:11737 [inline] #1: ffff8880501f4cb0 (&ctx->mutex){+.+.}-{3:3}, at: __perf_event_ctx_lock_double kernel/events/core.c:11882 [inline] #1: ffff8880501f4cb0 (&ctx->mutex){+.+.}-{3:3}, at: __do_sys_perf_event_open+0x1237/0x2e60 kernel/events/core.c:12155 #2: ffff8880501f4cb0 (&ctx->mutex/1){+.+.}-{3:3}, at: mutex_lock_double kernel/events/core.c:11738 [inline] #2: ffff8880501f4cb0 (&ctx->mutex/1){+.+.}-{3:3}, at: __perf_event_ctx_lock_double kernel/events/core.c:11882 [inline] #2: ffff8880501f4cb0 (&ctx->mutex/1){+.+.}-{3:3}, at: __do_sys_perf_event_open+0x1244/0x2e60 kernel/events/core.c:12155 =============================================