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1
WARNING: mm/page_alloc.c:5340 at alloc_order_allowed mm/page_alloc.c:5340 [inline], CPU#2: syz.2.531/7444
WARNING: mm/page_alloc.c:5340 at __alloc_frozen_pages_noprof+0x2137/0x3300 mm/page_alloc.c:5397, CPU#2: syz.2.531/7444
Modules linked in:
CPU: 2 UID: 0 PID: 7444 Comm: syz.2.531 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:alloc_order_allowed mm/page_alloc.c:5340 [inline]
RIP: 0010:__alloc_frozen_pages_noprof+0x2137/0x3300 mm/page_alloc.c:5397
Code: 13 00 00 39 84 24 98 00 00 00 0f 85 4a fa ff ff e9 91 f6 ff ff 80 3d a8 bf bb 0e 00 0f 85 9d e2 ff ff c6 05 9b bf bb 0e 01 90 <0f> 0b 90 e9 8d e2 ff ff 31 c0 e9 5f ec ff ff 48 8b 7c 24 08 48 c7
RSP: 0018:ffffc9000392f6e8 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000016 RDI: 0000000000040cc0
RBP: 0000000000000016 R08: 0000000000000000 R09: 0000000000000009
R10: 0000000000000016 R11: 0000000000000000 R12: 0000000000040cc0
R13: 1ffff92000725f39 R14: 0000000000000000 R15: 1ffff92000725ef7
FS:  00007fa2eb7fc6c0(0000) GS:ffff8880d5d61000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa2eb7fbff8 CR3: 000000003c8cc000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 alloc_pages_mpol+0x201/0x550 mm/mempolicy.c:2486
 ___kmalloc_large_node+0xe8/0x130 mm/slub.c:5353
 __kmalloc_large_node_noprof+0x1c/0x70 mm/slub.c:5385
 __do_kmalloc_node mm/slub.c:5402 [inline]
 __kmalloc_noprof+0x5a8/0x840 mm/slub.c:5439
 _kmalloc_noprof include/linux/slab.h:995 [inline]
 _kmalloc_array_noprof include/linux/slab.h:1211 [inline]
 drm_syncobj_array_find+0x34/0x3a0 drivers/gpu/drm/drm_syncobj.c:1274
 drm_syncobj_timeline_signal_ioctl+0x22a/0x8d0 drivers/gpu/drm/drm_syncobj.c:1601
 drm_ioctl_kernel+0x1f3/0x3e0 drivers/gpu/drm/drm_ioctl.c:817
 drm_ioctl+0x5e6/0xc60 drivers/gpu/drm/drm_ioctl.c:914
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl fs/ioctl.c:583 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
 do_syscall_64+0x123/0x790 arch/x86/entry/syscall_64.c:84
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa2ea99e159
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:00007fa2eb7fc028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fa2eac26090 RCX: 00007fa2ea99e159
RDX: 0000200000000180 RSI: 00000000c01864cd RDI: 0000000000000005
RBP: 00007fa2eaa35024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fa2eac26128 R14: 00007fa2eac26090 R15: 00007ffc0664f018
 </TASK>