binder: 8158:8170 ioctl 40046207 0 returned -16 binder_alloc: 8158: binder_alloc_buf, no vma binder: 8158:8186 transaction failed 29189/-3, size 0-0 line 3127 binder: 8158:8170 got reply transaction with no transaction stack binder: 8158:8170 transaction failed 29201/-71, size 0-0 line 2920 BUG: spinlock bad magic on CPU#0, syz-executor3/8168 lock: 0xffff8801b3318018, .magic: dead4eac, .owner: /-1, .owner_cpu: -1 CPU: 0 PID: 8168 Comm: syz-executor3 Not tainted 4.9.71-g2506378 #9 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 ffff8801d5def838 ffffffff81d922b9 ffff8801b3318018 ffff8801d6074800 dffffc0000000000 ffff8801d5defb70 ffff8801d5defba0 ffff8801d5def878 ffffffff81246a9d ffffffff81222604 ffff880100000000 0000000000000000 Call Trace: [] __dump_stack lib/dump_stack.c:15 [inline] [] dump_stack+0xc1/0x128 lib/dump_stack.c:51 [] spin_dump+0x14d/0x280 kernel/locking/spinlock_debug.c:67 [] spin_bug kernel/locking/spinlock_debug.c:75 [inline] [] debug_spin_lock_before kernel/locking/spinlock_debug.c:83 [inline] [] do_raw_spin_lock+0x174/0x1e0 kernel/locking/spinlock_debug.c:112 [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:119 [inline] [] _raw_spin_lock_irqsave+0x56/0x70 kernel/locking/spinlock.c:159 [] remove_wait_queue+0x14/0x40 kernel/sched/wait.c:49 [] free_poll_entry fs/select.c:133 [inline] [] poll_freewait+0xd2/0x250 fs/select.c:142 [] do_sys_poll+0x617/0xcb0 fs/select.c:926 [] SYSC_poll fs/select.c:983 [inline] [] SyS_poll+0x120/0x3f0 fs/select.c:971 [] do_syscall_32_irqs_on arch/x86/entry/common.c:322 [inline] [] do_fast_syscall_32+0x2f7/0x890 arch/x86/entry/common.c:384 [] entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124 binder: undelivered TRANSACTION_ERROR: 29201 binder: undelivered TRANSACTION_ERROR: 29189 binder: release 8158:8170 transaction 49 out, still active binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_COMPLETE binder: undelivered TRANSACTION_COMPLETE binder: undelivered transaction 48, process died. binder: send failed reply for transaction 49, target dead kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN Dumping ftrace buffer: (ftrace buffer empty) Modules linked in: CPU: 0 PID: 8182 Comm: syz-executor6 Not tainted 4.9.71-g2506378 #9 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8801d6029800 task.stack: ffff8801d5b68000 RIP: 0010:[] [] __read_once_size include/linux/compiler.h:243 [inline] RIP: 0010:[] [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] RIP: 0010:[] [] page_ref_count include/linux/page_ref.h:66 [inline] RIP: 0010:[] [] put_page_testzero include/linux/mm.h:450 [inline] RIP: 0010:[] [] __free_pages+0x21/0x80 mm/page_alloc.c:3903 RSP: 0018:ffff8801d5b6f990 EFLAGS: 00010a07 RAX: dffffc0000000000 RBX: dead4ead00000000 RCX: ffffffff82664deb RDX: 1bd5a9d5a0000003 RSI: 0000000000000002 RDI: dead4ead0000001c RBP: ffff8801d5b6f9a0 R08: 0000000000080000 R09: ffffed003b14641d R10: 0000000000000005 R11: ffffed003b14641c R12: 0000000000000004 R13: 0000000000000020 R14: ffff8801b331a100 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8801db200000(0063) knlGS:00000000f6f59b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f6f09db0 CR3: 00000001d8d78000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Stack: ffffffff838af9b9 ffff8801b331a258 ffff8801d5b6fa00 ffffffff82664e11 ffff8801b331a270 ffffed003666344b ffffed003666344e ffff8801b331a268 dead4ead00000000 ffff8801b331a240 0000000000000000 0000000000000000 Call Trace: [] sg_remove_scat.isra.19+0x1c1/0x2d0 drivers/scsi/sg.c:1954 [] sg_finish_rem_req+0x2b5/0x340 drivers/scsi/sg.c:1836 [] sg_read+0xa1c/0x1440 drivers/scsi/sg.c:527 [] do_loop_readv_writev.part.17+0x141/0x1e0 fs/read_write.c:714 [] do_loop_readv_writev fs/read_write.c:1105 [inline] [] compat_do_readv_writev+0x522/0x760 fs/read_write.c:1099 [] compat_readv+0xe3/0x150 fs/read_write.c:1128 [] do_compat_readv+0xf4/0x1d0 fs/read_write.c:1148 [] C_SYSC_readv fs/read_write.c:1160 [inline] [] compat_SyS_readv+0x26/0x30 fs/read_write.c:1156 [] do_syscall_32_irqs_on arch/x86/entry/common.c:322 [inline] [] do_fast_syscall_32+0x2f7/0x890 arch/x86/entry/common.c:384 [] entry_SYSENTER_compat+0x51/0x60 arch/x86/entry/entry_64_compat.S:124 Code: e9 27 fc ff ff 0f 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 55 48 89 e5 53 48 89 fb 48 83 c7 1c 48 89 fa 48 83 ec 08 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 3d RIP [] __read_once_size include/linux/compiler.h:243 [inline] RIP [] atomic_read arch/x86/include/asm/atomic.h:26 [inline] RIP [] page_ref_count include/linux/page_ref.h:66 [inline] RIP [] put_page_testzero include/linux/mm.h:450 [inline] RIP [] __free_pages+0x21/0x80 mm/page_alloc.c:3903 RSP ---[ end trace 2c5d028c0e5bcfb0 ]---