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1
WARNING: mm/page_alloc.c:5216 at __alloc_frozen_pages_noprof+0x2d1/0x380 mm/page_alloc.c:5216, CPU#0: syz.0.0/5327
Modules linked in:
CPU: 0 UID: 0 PID: 5327 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:__alloc_frozen_pages_noprof+0x2d1/0x380 mm/page_alloc.c:5216
Code: 74 10 4c 89 e7 89 54 24 0c e8 ab 16 0e 00 8b 54 24 0c 49 83 3c 24 00 0f 85 a8 fe ff ff e9 a9 fe ff ff c6 05 6b 99 d9 0d 01 90 <0f> 0b 90 e9 17 ff ff ff a9 00 00 08 00 48 8b 4c 24 10 4c 8d 44 24
RSP: 0018:ffffc9000af47920 EFLAGS: 00010246
RAX: ffffc9000af47900 RBX: 0000000000000016 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffc9000af47988
RBP: ffffc9000af47a18 R08: ffffc9000af47987 R09: 0000000000000000
R10: ffffc9000af47960 R11: fffff520015e8f31 R12: 0000000000000000
R13: 1ffff920015e8f28 R14: 0000000000040cc0 R15: dffffc0000000000
FS:  00007fe1c6c3e6c0(0000) GS:ffff88808cad4000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe1c6c3dff0 CR3: 000000001312f000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2486
 ___kmalloc_large_node+0x4e/0x150 mm/slub.c:5598
 __kmalloc_large_node_noprof+0x18/0x90 mm/slub.c:5629
 __do_kmalloc_node mm/slub.c:5645 [inline]
 __kmalloc_noprof+0x4b8/0x7e0 mm/slub.c:5669
 kmalloc_noprof include/linux/slab.h:961 [inline]
 kmalloc_array_noprof include/linux/slab.h:1003 [inline]
 drm_syncobj_array_find+0x3a/0x450 drivers/gpu/drm/drm_syncobj.c:1297
 drm_syncobj_timeline_signal_ioctl+0x165/0x8a0 drivers/gpu/drm/drm_syncobj.c:1624
 drm_ioctl_kernel+0x2df/0x3b0 drivers/gpu/drm/drm_ioctl.c:804
 drm_ioctl+0x6ba/0xb80 drivers/gpu/drm/drm_ioctl.c:901
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xe2/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fe1c5d9af79
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fe1c6c3e028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fe1c6016090 RCX: 00007fe1c5d9af79
RDX: 0000200000000300 RSI: 00000000c01864cd RDI: 0000000000000007
RBP: 00007fe1c5e316e0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe1c6016128 R14: 00007fe1c6016090 R15: 00007fff3a56c3f8
 </TASK>