kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN CPU: 1 PID: 974 Comm: syz-executor6 Not tainted 4.18.0-rc4-next-20180713+ #7 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:constant_test_bit arch/x86/include/asm/bitops.h:328 [inline] RIP: 0010:PageHead include/linux/page-flags.h:500 [inline] RIP: 0010:page_remove_file_rmap mm/rmap.c:1214 [inline] RIP: 0010:page_remove_rmap+0xba5/0x1260 mm/rmap.c:1300 Code: f9 ff ff e8 ed 74 cb ff 4d 8d a7 48 37 00 00 e9 16 fd ff ff e8 dc 74 cb ff 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 97 05 00 00 4c 8b 23 31 ff 49 c1 ec 0f 41 83 e4 RSP: 0000:ffff8801903bf300 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: ffffffff81b0f683 RDX: 1bffff8000000000 RSI: ffffffff81b0fb74 RDI: 0000000000000001 RBP: ffff8801903bf4f0 R08: ffff880196ef8480 R09: 0000000000000000 R10: ffffed0039706788 R11: ffff8801cb833c47 R12: ffff8801903bf580 R13: ffff8801cc3452f0 R14: ffff8801cc345318 R15: ffffffff81b5e2ac FS: 0000000001b07940(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4c9a2abd90 CR3: 00000001b3cfd000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: shrink_slab_memcg mm/vmscan.c:598 [inline] shrink_slab+0x861/0xa60 mm/vmscan.c:671 shrink_node+0x429/0x16a0 mm/vmscan.c:2735 shrink_zones mm/vmscan.c:2964 [inline] do_try_to_free_pages+0x3e7/0x1290 mm/vmscan.c:3026 try_to_free_mem_cgroup_pages+0x49d/0xc90 mm/vmscan.c:3324 reclaim_high.constprop.73+0x137/0x1e0 mm/memcontrol.c:2060 mem_cgroup_handle_over_high+0x8d/0x130 mm/memcontrol.c:2085 tracehook_notify_resume include/linux/tracehook.h:195 [inline] exit_to_usermode_loop+0x287/0x380 arch/x86/entry/common.c:166 prepare_exit_to_usermode+0x342/0x3b0 arch/x86/entry/common.c:197 retint_user+0x8/0x18 RIP: 0033:0x40d7ef Code: 0f 84 c8 02 00 00 48 83 bd 78 ff ff ff 00 0f 84 f9 04 00 00 48 8b 95 68 ff ff ff 44 89 95 38 ff ff ff 4c 8d ac 10 00 f7 ff ff <49> 89 85 90 06 00 00 49 8d 85 10 03 00 00 49 89 95 98 06 00 00 41 RSP: 002b:00007fff161d9e10 EFLAGS: 00010206 RAX: 00007f4c9a28b000 RBX: 0000000000020000 RCX: 0000000000455b0a RDX: 0000000000021000 RSI: 0000000000021000 RDI: 0000000000000000 RBP: 00007fff161d9ef0 R08: ffffffffffffffff R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff161d9f00 R13: 00007f4c9a2ab700 R14: 000000000072bf6c R15: 0000000000000001 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace 7eb2a0c9a055ca2c ]--- RIP: 0010:constant_test_bit arch/x86/include/asm/bitops.h:328 [inline] RIP: 0010:PageHead include/linux/page-flags.h:500 [inline] RIP: 0010:page_remove_file_rmap mm/rmap.c:1214 [inline] RIP: 0010:page_remove_rmap+0xba5/0x1260 mm/rmap.c:1300 Code: f9 ff ff e8 ed 74 cb ff 4d 8d a7 48 37 00 00 e9 16 fd ff ff e8 dc 74 cb ff 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <80> 3c 02 00 0f 85 97 05 00 00 4c 8b 23 31 ff 49 c1 ec 0f 41 83 e4 RSP: 0000:ffff8801903bf300 EFLAGS: 00010a06 RAX: dffffc0000000000 RBX: dffffc0000000000 RCX: ffffffff81b0f683 RDX: 1bffff8000000000 RSI: ffffffff81b0fb74 RDI: 0000000000000001 RBP: ffff8801903bf4f0 R08: ffff880196ef8480 R09: 0000000000000000 R10: ffffed0039706788 R11: ffff8801cb833c47 R12: ffff8801903bf580 R13: ffff8801cc3452f0 R14: ffff8801cc345318 R15: ffffffff81b5e2ac FS: 0000000001b07940(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f4c9a2abd90 CR3: 00000001b3cfd000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400