binder: 21270:21324 ioctl 40046207 0 returned -16 binder: 21270:21299 ERROR: BC_REGISTER_LOOPER called without request binder: 21270:21325 ioctl c0306201 20007000 returned -14 ====================================================== WARNING: possible circular locking dependency detected 4.18.0+ #192 Not tainted ------------------------------------------------------ syz-executor1/21330 is trying to acquire lock: 0000000047ed6e75 (sb_writers#3){.+.+}, at: file_start_write include/linux/fs.h:2752 [inline] 0000000047ed6e75 (sb_writers#3){.+.+}, at: vfs_fallocate+0x5be/0x8d0 fs/open.c:318 but task is already holding lock: 00000000dfb24c5e (ashmem_mutex){+.+.}, at: ashmem_shrink_scan+0xb4/0x580 drivers/staging/android/ashmem.c:442 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (ashmem_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:925 [inline] __mutex_lock+0x171/0x1700 kernel/locking/mutex.c:1073 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1088 ashmem_mmap+0x53/0x4a0 drivers/staging/android/ashmem.c:361 call_mmap include/linux/fs.h:1813 [inline] mmap_region+0xe39/0x1b50 mm/mmap.c:1762 do_mmap+0xa06/0x1320 mm/mmap.c:1535 do_mmap_pgoff include/linux/mm.h:2306 [inline] vm_mmap_pgoff+0x213/0x2c0 mm/util.c:357 ksys_mmap_pgoff+0x4da/0x660 mm/mmap.c:1585 __do_sys_mmap arch/x86/kernel/sys_x86_64.c:100 [inline] __se_sys_mmap arch/x86/kernel/sys_x86_64.c:91 [inline] __x64_sys_mmap+0xe9/0x1b0 arch/x86/kernel/sys_x86_64.c:91 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #2 (&mm->mmap_sem){++++}: __might_fault+0x155/0x1e0 mm/memory.c:4589 _copy_to_user+0x30/0x110 lib/usercopy.c:25 copy_to_user include/linux/uaccess.h:155 [inline] filldir+0x1ea/0x3a0 fs/readdir.c:196 dir_emit_dot include/linux/fs.h:3417 [inline] dir_emit_dots include/linux/fs.h:3428 [inline] dcache_readdir+0x13a/0x620 fs/libfs.c:192 iterate_dir+0x4b0/0x5d0 fs/readdir.c:51 __do_sys_getdents fs/readdir.c:231 [inline] __se_sys_getdents fs/readdir.c:212 [inline] __x64_sys_getdents+0x29f/0x510 fs/readdir.c:212 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe -> #1 (&sb->s_type->i_mutex_key#10){++++}: down_write+0x8f/0x130 kernel/locking/rwsem.c:70 inode_lock include/linux/fs.h:730 [inline] generic_file_write_iter+0xed/0x870 mm/filemap.c:3289 call_write_iter include/linux/fs.h:1808 [inline] new_sync_write fs/read_write.c:474 [inline] __vfs_write+0x6af/0x9d0 fs/read_write.c:487 vfs_write+0x1f8/0x560 fs/read_write.c:549 kernel_write+0xab/0x120 fs/read_write.c:526 fork_usermode_blob+0x11c/0x1b0 kernel/umh.c:493 load_umh+0x2b/0xbd net/bpfilter/bpfilter_kern.c:93 do_one_initcall+0x127/0x913 init/main.c:884 do_initcall_level init/main.c:952 [inline] do_initcalls init/main.c:960 [inline] do_basic_setup init/main.c:978 [inline] kernel_init_freeable+0x49b/0x58e init/main.c:1142 kernel_init+0x11/0x1b3 init/main.c:1061 ret_from_fork+0x3a/0x50 arch/x86/entry/entry_64.S:413 -> #0 (sb_writers#3){.+.+}: lock_acquire+0x1e4/0x540 kernel/locking/lockdep.c:3924 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+0x1e9/0x300 fs/super.c:1403 file_start_write include/linux/fs.h:2752 [inline] vfs_fallocate+0x5be/0x8d0 fs/open.c:318 ashmem_shrink_scan+0x1f9/0x580 drivers/staging/android/ashmem.c:449 ashmem_ioctl+0x3dd/0x13c0 drivers/staging/android/ashmem.c:791 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x1de/0x1720 fs/ioctl.c:684 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:701 __do_sys_ioctl fs/ioctl.c:708 [inline] __se_sys_ioctl fs/ioctl.c:706 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:706 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe other info that might help us debug this: Chain exists of: sb_writers#3 --> &mm->mmap_sem --> ashmem_mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(ashmem_mutex); lock(&mm->mmap_sem); lock(ashmem_mutex); lock(sb_writers#3); *** DEADLOCK *** 1 lock held by syz-executor1/21330: #0: 00000000dfb24c5e (ashmem_mutex){+.+.}, at: ashmem_shrink_scan+0xb4/0x580 drivers/staging/android/ashmem.c:442 stack backtrace: CPU: 0 PID: 21330 Comm: syz-executor1 Not tainted 4.18.0+ #192 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+0x1c9/0x2b4 lib/dump_stack.c:113 print_circular_bug.isra.37.cold.58+0x1bd/0x27d kernel/locking/lockdep.c:1227 check_prev_add kernel/locking/lockdep.c:1867 [inline] check_prevs_add kernel/locking/lockdep.c:1980 [inline] validate_chain kernel/locking/lockdep.c:2421 [inline] __lock_acquire+0x3449/0x5020 kernel/locking/lockdep.c:3435 lock_acquire+0x1e4/0x540 kernel/locking/lockdep.c:3924 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+0x1e9/0x300 fs/super.c:1403 file_start_write include/linux/fs.h:2752 [inline] vfs_fallocate+0x5be/0x8d0 fs/open.c:318 ashmem_shrink_scan+0x1f9/0x580 drivers/staging/android/ashmem.c:449 ashmem_ioctl+0x3dd/0x13c0 drivers/staging/android/ashmem.c:791 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x1de/0x1720 fs/ioctl.c:684 ksys_ioctl+0xa9/0xd0 fs/ioctl.c:701 __do_sys_ioctl fs/ioctl.c:708 [inline] __se_sys_ioctl fs/ioctl.c:706 [inline] __x64_sys_ioctl+0x73/0xb0 fs/ioctl.c:706 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457089 Code: fd b4 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 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f184e9a2c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f184e9a36d4 RCX: 0000000000457089 RDX: 0000000000000000 RSI: 000000000000770a RDI: 0000000000000003 RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004cd2f0 R14: 00000000004c3dca R15: 0000000000000000 binder: 21347:21350 ERROR: BC_REGISTER_LOOPER called without request binder_alloc: binder_alloc_mmap_handler: 21347 20000000-20002000 already mapped failed -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 21347:21350 ioctl 40046207 0 returned -16 binder: 21347:21350 ERROR: BC_REGISTER_LOOPER called without request PM: Marking nosave pages: [mem 0x00000000-0x00000fff] PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] binder_alloc: 21347: binder_alloc_buf, no vma PM: Marking nosave pages: [mem 0xbfff3000-0xffffffff] binder: 21347:21388 transaction failed 29189/-3, size 0-0 line 2967 PM: Basic memory bitmaps created binder: release 21347:21350 transaction 544 in, still active binder: send failed reply for transaction 544 to 21347:21350 binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29189 PM: Basic memory bitmaps freed REISERFS warning (device loop6): super-6502 reiserfs_getopt: unknown mount option "C)yØ @*;(ÒÓ‡Y¥†VS(ñÑ(q™€ÞŒmôojoI"ûdÀŸ2~—¿\n Ïš…"#í ²«kÌs'–±Ž&÷éy1!ˆõlù`SÁÆNãôðã<ÔZŒ¹Ò3ð{Ô†•é‘¿hE^š2¬ñ®çyªü\i°×í¶-þv–EºzJŸu—Rý'½" binder: 21435:21436 ERROR: BC_REGISTER_LOOPER called without request binder_alloc: binder_alloc_mmap_handler: 21435 20000000-20002000 already mapped failed -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 21435:21436 ioctl 40046207 0 returned -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 21454:21457 ioctl 40046207 0 returned -16 binder: 21435:21450 ERROR: BC_REGISTER_LOOPER called without request binder: 21454:21457 ERROR: BC_REGISTER_LOOPER called without request binder_alloc: 21435: binder_alloc_buf, no vma binder: 21435:21475 transaction failed 29189/-3, size 0-0 line 2967 binder_alloc: 21435: binder_alloc_buf, no vma binder: 21454:21489 transaction failed 29189/-3, size 0-0 line 2967 binder: release 21435:21436 transaction 547 in, still active binder: send failed reply for transaction 547 to 21435:21436 binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29189 binder: 21501:21502 unknown command 922772235 binder: 21501:21502 ioctl c0306201 20008fd0 returned -22 binder: undelivered TRANSACTION_ERROR: 29189 binder: BINDER_SET_CONTEXT_MGR already set binder: 21501:21564 ioctl 40046207 0 returned -16 binder: 21501:21565 unknown command 922772235 binder_alloc: 21501: binder_alloc_buf, no vma binder: 21501:21565 ioctl c0306201 20008fd0 returned -22 binder: 21501:21566 transaction failed 29189/-3, size 0-0 line 2967 binder: release 21501:21502 transaction 551 out, still active binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29189 binder_alloc: 21501: binder_alloc_buf, no vma binder: 21569:21575 transaction failed 29189/-3, size -140067482516848640-0 line 2967 binder: send failed reply for transaction 551, target dead binder: 21585:21586 ioctl c0306201 20008fd0 returned -14 binder: 21569:21589 unknown command 1986356271 binder: 21569:21589 ioctl c0306201 20000140 returned -22 binder: 21569:21607 got reply transaction with no transaction stack binder: 21569:21607 transaction failed 29201/-71, size 0-0 line 2759 binder: BINDER_SET_CONTEXT_MGR already set binder_alloc: 21585: binder_alloc_buf size -140067482516848640 failed, no address space binder_alloc: allocated: 8 (num: 1 largest: 8), free: 16376 (num: 1 largest: 16376) binder: 21569:21589 transaction failed 29201/-28, size -140067482516848640-0 line 2967 binder: 21569:21607 unknown command 1986356271 binder: 21569:21607 ioctl c0306201 20000140 returned -22 binder: 21569:21575 ioctl 40046207 0 returned -16 binder: 21569:21589 got reply transaction with no transaction stack binder: undelivered TRANSACTION_ERROR: 29189 binder: 21569:21589 transaction failed 29201/-71, size 0-0 line 2759 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_ERROR: 29201 binder_alloc: binder_alloc_mmap_handler: 21585 20001000-20005000 already mapped failed -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 21585:21624 ioctl c0306201 20008fd0 returned -14 binder: 21585:21622 ioctl 40046207 0 returned -16 binder_alloc: 21585: binder_alloc_buf, no vma binder: 21585:21623 transaction failed 29189/-3, size 0-0 line 2967 binder: release 21585:21586 transaction 556 out, still active binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29189 kernel msg: ebtables bug: please report to author: Wrong len argument binder: send failed reply for transaction 556, target dead kernel msg: ebtables bug: please report to author: Wrong len argument binder: 21643:21644 ERROR: BC_REGISTER_LOOPER called without request binder: 21643:21644 ioctl c0306201 20007000 returned -14 binder_alloc: binder_alloc_mmap_handler: 21643 20000000-20002000 already mapped failed -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 21643:21680 ERROR: BC_REGISTER_LOOPER called without request binder: 21643:21681 ioctl c0306201 20007000 returned -14 binder: 21643:21679 ioctl 40046207 0 returned -16 binder: 21701:21702 ERROR: BC_REGISTER_LOOPER called without request FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 21707 Comm: syz-executor1 Not tainted 4.18.0+ #192 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 binder_alloc: binder_alloc_mmap_handler: 21701 20000000-20002000 already mapped failed -16 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1c9/0x2b4 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x11 lib/fault-inject.c:149 binder: BINDER_SET_CONTEXT_MGR already set binder: 21701:21702 ioctl 40046207 0 returned -16 __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc_trace+0x2cb/0x780 mm/slab.c:3618 kmalloc include/linux/slab.h:513 [inline] kzalloc include/linux/slab.h:707 [inline] do_shmat+0x6a2/0xef0 ipc/shm.c:1466 __do_sys_shmat ipc/shm.c:1542 [inline] __se_sys_shmat ipc/shm.c:1537 [inline] __x64_sys_shmat+0xd7/0x1a0 ipc/shm.c:1537 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457089 Code: fd b4 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 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f184e9a2c78 EFLAGS: 00000246 ORIG_RAX: 000000000000001e RAX: ffffffffffffffda RBX: 00007f184e9a36d4 RCX: 0000000000457089 RDX: 0000000000004000 RSI: 0000000020ffc000 RDI: 0000000000000000 RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 R13: 00000000004d5af8 R14: 00000000004c950b R15: 0000000000000000 binder: 21701:21722 ERROR: BC_REGISTER_LOOPER called without request binder_alloc: 21701: binder_alloc_buf, no vma binder: 21701:21724 transaction failed 29189/-3, size 0-0 line 2967 binder: release 21701:21702 transaction 563 in, still active binder: send failed reply for transaction 563 to 21701:21712 binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29189 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 21740 Comm: syz-executor1 Not tainted 4.18.0+ #192 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+0x1c9/0x2b4 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x11 lib/fault-inject.c:149 __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc+0x2af/0x760 mm/slab.c:3552 kmem_cache_zalloc include/linux/slab.h:697 [inline] alloc_empty_file+0x11a/0x580 fs/file_table.c:122 alloc_file+0x5c/0x430 fs/file_table.c:165 alloc_file_clone+0x25/0xd0 fs/file_table.c:216 do_shmat+0x738/0xef0 ipc/shm.c:1472 __do_sys_shmat ipc/shm.c:1542 [inline] __se_sys_shmat ipc/shm.c:1537 [inline] __x64_sys_shmat+0xd7/0x1a0 ipc/shm.c:1537 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 binder: 21754:21766 ERROR: BC_REGISTER_LOOPER called without request binder_alloc: binder_alloc_mmap_handler: 21754 20000000-20002000 already mapped failed -16 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457089 Code: fd b4 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 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f184e9a2c78 EFLAGS: 00000246 binder: BINDER_SET_CONTEXT_MGR already set ORIG_RAX: 000000000000001e RAX: ffffffffffffffda RBX: 00007f184e9a36d4 RCX: 0000000000457089 RDX: 0000000000004000 RSI: 0000000020ffc000 RDI: 0000000000000000 RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 binder: 21754:21766 ioctl 40046207 0 returned -16 R13: 00000000004d5af8 R14: 00000000004c950b R15: 0000000000000001 binder: 21754:21771 ERROR: BC_REGISTER_LOOPER called without request binder_alloc: 21754: binder_alloc_buf, no vma binder: 21754:21777 transaction failed 29189/-3, size 0-0 line 2967 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 binder: release 21754:21766 transaction 566 in, still active CPU: 1 PID: 21788 Comm: syz-executor1 Not tainted 4.18.0+ #192 binder: send failed reply for transaction 566 to 21754:21766 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+0x1c9/0x2b4 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x11 lib/fault-inject.c:149 __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc+0x2af/0x760 mm/slab.c:3552 vm_area_dup+0x7a/0x220 kernel/fork.c:322 __split_vma+0xae/0x570 mm/mmap.c:2623 do_munmap+0x2fe/0xf60 mm/mmap.c:2732 mmap_region+0x69c/0x1b50 mm/mmap.c:1705 do_mmap+0xa06/0x1320 mm/mmap.c:1535 do_mmap_pgoff include/linux/mm.h:2306 [inline] do_shmat+0xcd4/0xef0 ipc/shm.c:1507 __do_sys_shmat ipc/shm.c:1542 [inline] __se_sys_shmat ipc/shm.c:1537 [inline] __x64_sys_shmat+0xd7/0x1a0 ipc/shm.c:1537 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457089 Code: fd b4 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 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f184e9a2c78 EFLAGS: 00000246 ORIG_RAX: 000000000000001e RAX: ffffffffffffffda RBX: 00007f184e9a36d4 RCX: 0000000000457089 RDX: 0000000000004000 RSI: 0000000020ffc000 RDI: 0000000000000000 RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 R13: 00000000004d5af8 R14: 00000000004c950b R15: 0000000000000002 binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29189 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 0 PID: 21813 Comm: syz-executor1 Not tainted 4.18.0+ #192 binder: 21809:21812 ERROR: BC_REGISTER_LOOPER called without request 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+0x1c9/0x2b4 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x11 lib/fault-inject.c:149 binder: BINDER_SET_CONTEXT_MGR already set binder: 21809:21815 ioctl 40046207 0 returned -16 binder: 21809:21821 ERROR: BC_REGISTER_LOOPER called without request binder_alloc: 21809: binder_alloc_buf, no vma __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc+0x2af/0x760 mm/slab.c:3552 binder: 21809:21812 transaction failed 29189/-3, size 0-0 line 2967 vm_area_dup+0x7a/0x220 kernel/fork.c:322 __split_vma+0xae/0x570 mm/mmap.c:2623 do_munmap+0x377/0xf60 mm/mmap.c:2741 mmap_region+0x69c/0x1b50 mm/mmap.c:1705 do_mmap+0xa06/0x1320 mm/mmap.c:1535 do_mmap_pgoff include/linux/mm.h:2306 [inline] do_shmat+0xcd4/0xef0 ipc/shm.c:1507 __do_sys_shmat ipc/shm.c:1542 [inline] __se_sys_shmat ipc/shm.c:1537 [inline] __x64_sys_shmat+0xd7/0x1a0 ipc/shm.c:1537 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457089 Code: fd b4 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 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f184e9a2c78 EFLAGS: 00000246 ORIG_RAX: 000000000000001e RAX: ffffffffffffffda RBX: 00007f184e9a36d4 RCX: 0000000000457089 RDX: 0000000000004000 RSI: 0000000020ffc000 RDI: 0000000000000000 RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 R13: 00000000004d5af8 R14: 00000000004c950b R15: 0000000000000003 binder: undelivered TRANSACTION_ERROR: 29189 binder: release 21809:21812 transaction 569 out, still active binder: undelivered TRANSACTION_COMPLETE binder: BINDER_SET_CONTEXT_MGR already set binder: release 21809:21812 transaction 569 in, still active binder: send failed reply for transaction 569, target dead binder: 21852:21854 ioctl 40046207 0 returned -16 binder: 21852:21854 unknown command 0 binder: 21852:21854 ioctl c0306201 20008fd0 returned -22 binder: 21852:21862 transaction failed 29189/-22, size 0-0 line 2852 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 21892 Comm: syz-executor1 Not tainted 4.18.0+ #192 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+0x1c9/0x2b4 lib/dump_stack.c:113 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold.4+0xa/0x11 lib/fault-inject.c:149 __should_failslab+0x124/0x180 mm/failslab.c:32 should_failslab+0x9/0x14 mm/slab_common.c:1557 slab_pre_alloc_hook mm/slab.h:423 [inline] slab_alloc mm/slab.c:3378 [inline] kmem_cache_alloc+0x2af/0x760 mm/slab.c:3552 kmem_cache_zalloc include/linux/slab.h:697 [inline] vm_area_alloc+0x7a/0x1c0 kernel/fork.c:313 mmap_region+0x9c6/0x1b50 mm/mmap.c:1732 do_mmap+0xa06/0x1320 mm/mmap.c:1535 do_mmap_pgoff include/linux/mm.h:2306 [inline] do_shmat+0xcd4/0xef0 ipc/shm.c:1507 __do_sys_shmat ipc/shm.c:1542 [inline] __se_sys_shmat ipc/shm.c:1537 [inline] __x64_sys_shmat+0xd7/0x1a0 ipc/shm.c:1537 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457089 Code: fd b4 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 cb b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f184e9a2c78 EFLAGS: 00000246 ORIG_RAX: 000000000000001e RAX: ffffffffffffffda RBX: 00007f184e9a36d4 RCX: 0000000000457089 RDX: 0000000000004000 RSI: 0000000020ffc000 RDI: 0000000000000000 RBP: 00000000009300a0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 R13: 00000000004d5af8 R14: 00000000004c950b R15: 0000000000000004 binder: 21852:21862 unknown command 0 binder_alloc: 21852: binder_alloc_buf, no vma binder: 21852:21862 ioctl c0306201 20008fd0 returned -22 binder: 21852:21907 transaction failed 29189/-3, size 0-0 line 2967 binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29189 binder: 21914:21925 ERROR: BC_REGISTER_LOOPER called without request binder_alloc: binder_alloc_mmap_handler: 21914 20000000-20002000 already mapped failed -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 21914:21959 ioctl 40046207 0 returned -16 binder: 21914:21932 ERROR: BC_REGISTER_LOOPER called without request binder: 21914:21925 got new transaction with bad transaction stack, transaction 575 has target 21914:21925 binder: 21914:21925 transaction failed 29201/-71, size 0-0 line 2879 binder: release 21914:21925 transaction 575 out, still active binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29201 binder: release 21914:21925 transaction 575 in, still active binder: send failed reply for transaction 575, target dead binder: 21973:21977 ERROR: BC_REGISTER_LOOPER called without request binder_alloc: binder_alloc_mmap_handler: 21973 20000000-20002000 already mapped failed -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 21973:21977 ioctl 40046207 0 returned -16 binder: 21973:21977 ERROR: BC_REGISTER_LOOPER called without request binder_alloc: 21973: binder_alloc_buf, no vma binder: 21973:21983 transaction failed 29189/-3, size 0-0 line 2967 binder: release 21973:21977 transaction 578 in, still active binder: send failed reply for transaction 578 to 21973:21977 binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29189 binder: undelivered TRANSACTION_ERROR: 29189 binder: 21989:21990 ERROR: BC_REGISTER_LOOPER called without request binder_alloc: binder_alloc_mmap_handler: 21989 20000000-20002000 already mapped failed -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 21989:22002 ERROR: BC_REGISTER_LOOPER called without request binder: 21989:21990 ioctl 40046207 0 returned -16 binder_alloc: 21989: binder_alloc_buf, no vma binder: 21989:22010 transaction failed 29189/-3, size 0-0 line 2967 binder: release 21989:21990 transaction 581 out, still active binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_ERROR: 29189 binder: release 21989:21990 transaction 581 in, still active binder: send failed reply for transaction 581, target dead binder: 22033:22037 ERROR: BC_REGISTER_LOOPER called without request binder: 22033:22045 unknown command 1145579486 binder: 22033:22045 ioctl c0306201 20007000 returned -22 binder_alloc: binder_alloc_mmap_handler: 22033 20000000-20003000 already mapped failed -16 binder: BINDER_SET_CONTEXT_MGR already set binder: 22033:22045 ioctl 40046207 0 returned -16 binder: 22033:22092 ERROR: BC_REGISTER_LOOPER called without request binder: 22033:22095 unknown command 1145579486 binder: 22033:22095 ioctl c0306201 20007000 returned -22 binder: 22116:22117 unknown command -1169453218 binder: 22116:22117 ioctl c0306201 20008fd0 returned -22 binder: 22116:22117 got transaction to context manager from process owning it binder: 22116:22117 transaction failed 29201/-22, size 0-0 line 2843