kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 12644 Comm: syz-executor2 Not tainted 4.20.0-rc7-next-20181224 #190 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:transparent_hugepage_enabled+0x8c/0x5e0 mm/huge_memory.c:69 Code: 80 3c 02 00 0f 85 ae 04 00 00 4c 8b a3 a0 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bc 24 b8 01 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 91 04 00 00 49 8b bc 24 b8 01 00 00 e8 2d 70 e6 kobject: 'hidraw0' (00000000a5b96a5c): kobject_uevent_env RSP: 0018:ffff88804d1871b8 EFLAGS: 00010202 kobject: 'hidraw0' (00000000a5b96a5c): fill_kobj_path: path = '/devices/virtual/misc/uhid/0000:0000:0004.0049/hidraw/hidraw0' RAX: dffffc0000000000 RBX: ffff88808dd01ca0 RCX: ffffc90009e03000 RDX: 0000000000000037 RSI: ffffffff81c8f3ea RDI: 00000000000001b8 RBP: ffff88804d1871e0 R08: ffffed1009e1bdf9 R09: ffffed1009e1bdf8 R10: ffffed1009e1bdf8 R11: ffff88804f0defc6 R12: 0000000000000000 kobject: 'hidraw' (00000000af1c991a): kobject_cleanup, parent (null) R13: ffff88808dd01d40 R14: 0000000000000aa3 R15: 0000000000000ebe FS: 00007f833bf88700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2bf20000 CR3: 0000000086eb2000 CR4: 00000000001426f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: show_smap+0x167/0x580 fs/proc/task_mmu.c:805 seq_read+0xb81/0x1150 fs/seq_file.c:268 do_loop_readv_writev fs/read_write.c:700 [inline] do_iter_read+0x4bc/0x670 fs/read_write.c:924 vfs_readv+0x175/0x1c0 fs/read_write.c:986 kernel_readv fs/splice.c:362 [inline] default_file_splice_read+0x539/0xb20 fs/splice.c:417 kobject: 'hidraw' (00000000af1c991a): calling ktype release kobject: 'hidraw': free name kobject: 'hidraw0' (00000000a5b96a5c): kobject_cleanup, parent (null) do_splice_to+0x12e/0x190 fs/splice.c:880 splice_direct_to_actor+0x31c/0x9d0 fs/splice.c:957 kobject: 'hidraw0' (00000000a5b96a5c): calling ktype release do_splice_direct+0x2d4/0x420 fs/splice.c:1066 do_sendfile+0x62a/0xe50 fs/read_write.c:1439 kobject: 'hidraw0': free name __do_sys_sendfile64 fs/read_write.c:1500 [inline] __se_sys_sendfile64 fs/read_write.c:1486 [inline] __x64_sys_sendfile64+0x1fd/0x250 fs/read_write.c:1486 kobject: '0000:0000:0004.0049' (00000000efa7b25e): kobject_uevent_env do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 kobject: '0000:0000:0004.0049' (00000000efa7b25e): fill_kobj_path: path = '/devices/virtual/misc/uhid/0000:0000:0004.0049' kobject: '0000:0000:0004.0049' (00000000efa7b25e): kobject_uevent_env entry_SYSCALL_64_after_hwframe+0x49/0xbe kobject: '0000:0000:0004.0049' (00000000efa7b25e): fill_kobj_path: path = '/devices/virtual/misc/uhid/0000:0000:0004.0049' RIP: 0033:0x457ec9 Code: 6d b7 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 3b b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f833bf87c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 kobject: '0000:0000:0004.0049' (00000000efa7b25e): kobject_cleanup, parent (null) RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457ec9 RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004 RBP: 000000000073bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000040000000009 R11: 0000000000000246 R12: 00007f833bf886d4 R13: 00000000004c4b6b R14: 00000000004d8278 R15: 00000000ffffffff kobject: 'loop1' (000000008fb58c9a): kobject_uevent_env Modules linked in: kobject: 'loop1' (000000008fb58c9a): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: '0000:0000:0004.0049' (00000000efa7b25e): calling ktype release ---[ end trace 433671033f0328f3 ]--- kobject: '0000:0000:0004.0049': free name RIP: 0010:transparent_hugepage_enabled+0x8c/0x5e0 mm/huge_memory.c:69 PM: Basic memory bitmaps freed Code: 80 3c 02 00 0f 85 ae 04 00 00 4c 8b a3 a0 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bc 24 b8 01 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 91 04 00 00 49 8b bc 24 b8 01 00 00 e8 2d 70 e6 kobject: '0000:0000:0004.004A' (0000000071756ca3): kobject_add_internal: parent: 'uhid', set: 'devices' kobject: 'loop3' (00000000e5b39e03): kobject_uevent_env kobject: '0000:0000:0004.004A' (0000000071756ca3): kobject_uevent_env kobject: 'loop3' (00000000e5b39e03): fill_kobj_path: path = '/devices/virtual/block/loop3' PM: Marking nosave pages: [mem 0x00000000-0x00000fff] kobject: 'loop0' (0000000017452338): kobject_uevent_env kobject: '0000:0000:0004.004A' (0000000071756ca3): fill_kobj_path: path = '/devices/virtual/misc/uhid/0000:0000:0004.004A' PM: Marking nosave pages: [mem 0x0009f000-0x000fffff] hid-generic 0000:0000:0004.004A: unknown main item tag 0x0 kobject: 'loop0' (0000000017452338): fill_kobj_path: path = '/devices/virtual/block/loop0' RSP: 0018:ffff88804d1871b8 EFLAGS: 00010202 PM: Marking nosave pages: [mem 0xbfffd000-0xffffffff] hid-generic 0000:0000:0004.004A: unknown main item tag 0x0 kobject: 'loop4' (000000001c01a587): kobject_uevent_env hid-generic 0000:0000:0004.004A: unknown main item tag 0x0 kobject: 'loop4' (000000001c01a587): fill_kobj_path: path = '/devices/virtual/block/loop4' hid-generic 0000:0000:0004.004A: unknown main item tag 0x0 RAX: dffffc0000000000 RBX: ffff88808dd01ca0 RCX: ffffc90009e03000 RDX: 0000000000000037 RSI: ffffffff81c8f3ea RDI: 00000000000001b8 RBP: ffff88804d1871e0 R08: ffffed1009e1bdf9 R09: ffffed1009e1bdf8 R10: ffffed1009e1bdf8 R11: ffff88804f0defc6 R12: 0000000000000000 R13: ffff88808dd01d40 R14: 0000000000000aa3 R15: 0000000000000ebe FS: 00007f833bf88700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe7901ca000 CR3: 0000000086eb2000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400