syzbot

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WARNING: CPU: 0 PID: 5531 at mm/page_alloc.c:5124 __alloc_frozen_pages_noprof+0x2c8/0x370 mm/page_alloc.c:5124
Modules linked in:
CPU: 0 UID: 0 PID: 5531 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:__alloc_frozen_pages_noprof+0x2c8/0x370 mm/page_alloc.c:5124
Code: 74 10 4c 89 e7 89 54 24 0c e8 64 1e 0d 00 8b 54 24 0c 49 83 3c 24 00 0f 85 a5 fe ff ff e9 a6 fe ff ff c6 05 ca 14 96 0d 01 90 <0f> 0b 90 e9 18 ff ff ff a9 00 00 08 00 48 8b 4c 24 10 4c 8d 44 24
RSP: 0018:ffffc9000222f8e0 EFLAGS: 00010246
RAX: ffffc9000222f900 RBX: 0000000000000014 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc9000222f948
RBP: ffffc9000222f9c8 R08: ffffc9000222f947 R09: 0000000000000000
R10: ffffc9000222f920 R11: fffff52000445f29 R12: 0000000000000000
R13: 1ffff92000445f20 R14: 0000000000040cc0 R15: dffffc0000000000
FS:  0000555593d2a500(0000) GS:ffff88808d007000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000000041c CR3: 0000000046af4000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2416
 ___kmalloc_large_node+0x5f/0x1b0 mm/slub.c:4317
 __kmalloc_large_node_noprof+0x18/0x90 mm/slub.c:4348
 __do_kmalloc_node mm/slub.c:4364 [inline]
 __kmalloc_noprof+0x36f/0x4f0 mm/slub.c:4388
 kmalloc_noprof include/linux/slab.h:909 [inline]
 kmalloc_array_noprof include/linux/slab.h:948 [inline]
 drm_syncobj_array_find+0x3a/0x450 drivers/gpu/drm/drm_syncobj.c:1297
 drm_syncobj_wait_ioctl+0x208/0x520 drivers/gpu/drm/drm_syncobj.c:1368
 drm_ioctl_kernel+0x2cf/0x390 drivers/gpu/drm/drm_ioctl.c:796
 drm_ioctl+0x67f/0xb10 drivers/gpu/drm/drm_ioctl.c:893
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:598 [inline]
 __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:584
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f61f2f8eec9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff17981dc8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f61f31e5fa0 RCX: 00007f61f2f8eec9
RDX: 0000200000000400 RSI: 00000000c02864c3 RDI: 0000000000000003
RBP: 00007f61f3011f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f61f31e5fa0 R14: 00007f61f31e5fa0 R15: 0000000000000003
 </TASK>