general protection fault, probably for non-canonical address 0xdffffc0006eedf84: 0000 [#1] PREEMPT SMP KASAN KASAN: probably user-memory-access in range [0x000000003776fc20-0x000000003776fc27] CPU: 0 PID: 14662 Comm: syz-executor.3 Not tainted 5.6.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:page_to_nid include/linux/mm.h:1245 [inline] RIP: 0010:lookup_node mm/mempolicy.c:877 [inline] RIP: 0010:do_get_mempolicy mm/mempolicy.c:941 [inline] RIP: 0010:kernel_get_mempolicy+0x4d1/0xf10 mm/mempolicy.c:1586 Code: cf 48 89 c1 e8 f0 f6 f3 ff 85 c0 0f 88 10 06 00 00 48 8b 94 24 88 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 d1 48 c1 e9 03 <80> 3c 01 00 0f 85 f6 08 00 00 48 8b 1a 48 83 fb ff 0f 84 bb 06 00 RSP: 0018:ffffc9000206fdb8 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: ffffc9000206ff58 RCX: 0000000006eedf84 RDX: 000000003776fc22 RSI: dffffc0000000000 RDI: ffff888090e1aa98 RBP: 1ffff9200040dfbc R08: ffffed10121c3469 R09: ffffed10121c3469 R10: ffffed10121c3468 R11: ffff888090e1a347 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff88c60ce0 FS: 00007fb3427a5700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb342762db8 CR3: 00000000a8726000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __do_sys_get_mempolicy mm/mempolicy.c:1604 [inline] __se_sys_get_mempolicy mm/mempolicy.c:1600 [inline] __x64_sys_get_mempolicy+0xb5/0x150 mm/mempolicy.c:1600 do_syscall_64+0xc6/0x620 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x45c849 Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fb3427a4c78 EFLAGS: 00000246 ORIG_RAX: 00000000000000ef RAX: ffffffffffffffda RBX: 00007fb3427a56d4 RCX: 000000000045c849 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 000000000076bf00 R08: 0000000000000003 R09: 0000000000000000 R10: 000000002073b000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000000eb R14: 00000000004c371a R15: 000000000076bf0c Modules linked in: ---[ end trace 5304fe0e5c2a2ad2 ]--- RIP: 0010:page_to_nid include/linux/mm.h:1245 [inline] RIP: 0010:lookup_node mm/mempolicy.c:877 [inline] RIP: 0010:do_get_mempolicy mm/mempolicy.c:941 [inline] RIP: 0010:kernel_get_mempolicy+0x4d1/0xf10 mm/mempolicy.c:1586 Code: cf 48 89 c1 e8 f0 f6 f3 ff 85 c0 0f 88 10 06 00 00 48 8b 94 24 88 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 d1 48 c1 e9 03 <80> 3c 01 00 0f 85 f6 08 00 00 48 8b 1a 48 83 fb ff 0f 84 bb 06 00 RSP: 0018:ffffc9000206fdb8 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: ffffc9000206ff58 RCX: 0000000006eedf84 RDX: 000000003776fc22 RSI: dffffc0000000000 RDI: ffff888090e1aa98 RBP: 1ffff9200040dfbc R08: ffffed10121c3469 R09: ffffed10121c3469 R10: ffffed10121c3468 R11: ffff888090e1a347 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff88c60ce0 FS: 00007fb3427a5700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd3c59cd58 CR3: 00000000a8726000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400