------------[ cut here ]------------ WARNING: CPU: 0 PID: 26001 at mm/page_alloc.c:4977 __alloc_pages_nodemask+0x4e5/0x5a0 mm/page_alloc.c:5021 Modules linked in: CPU: 0 PID: 26001 Comm: syz-executor.5 Not tainted 5.11.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__alloc_pages_nodemask+0x4e5/0x5a0 mm/page_alloc.c:5021 Code: ab 09 00 e9 dd fd ff ff 44 89 e9 80 e1 07 80 c1 03 38 c1 0f 8c eb fd ff ff 4c 89 ef e8 f4 aa 09 00 8b 74 24 18 e9 da fd ff ff <0f> 0b e9 f3 fd ff ff a9 00 00 08 00 75 16 8b 4c 24 1c 89 cb 81 e3 RSP: 0018:ffffc90002007a60 EFLAGS: 00010246 RAX: ffffc90002007ae0 RBX: ffffc90002007ae0 RCX: 0000000000000000 RDX: 0000000000000028 RSI: 0000000000000000 RDI: ffffc90002007b08 RBP: ffffc90002007ba0 R08: dffffc0000000000 R09: ffffc90002007ae0 R10: fffff52000400f61 R11: 0000000000000000 R12: dffffc0000000000 R13: 0000000000000013 R14: 1ffff92000400f58 R15: 0000000000040cc0 FS: 00007f4fea202700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000074c698 CR3: 0000000053b90000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: alloc_pages include/linux/gfp.h:547 [inline] kmalloc_order+0x40/0x130 mm/slab_common.c:837 kmalloc_order_trace+0x15/0x70 mm/slab_common.c:853 kmalloc_large include/linux/slab.h:481 [inline] __kmalloc_track_caller+0x246/0x330 mm/slub.c:4457 memdup_user_nul+0x26/0xf0 mm/util.c:260 smk_write_syslog+0x29/0x90 security/smack/smackfs.c:2651 vfs_write+0x289/0xc90 fs/read_write.c:603 ksys_write+0x171/0x2a0 fs/read_write.c:658 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45e219 Code: 0d 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 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f4fea201c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045e219 RDX: 00000000fffffcdd RSI: 0000000020000180 RDI: 0000000000000004 RBP: 000000000119bfc0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c R13: 00007ffe3c6fb36f R14: 00007f4fea2029c0 R15: 000000000119bf8c