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1
WARNING: mm/page_alloc.c:5216 at __alloc_frozen_pages_noprof+0x1e8a/0x2410 mm/page_alloc.c:5216, CPU#2: syz.2.1878/12116
Modules linked in:
CPU: 2 UID: 0 PID: 12116 Comm: syz.2.1878 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_frozen_pages_noprof+0x1e8a/0x2410 mm/page_alloc.c:5216
Code: 48 8d bb 70 05 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 84 0f fa ff ff e8 f3 bc 0d 00 e9 05 fa ff ff c6 05 71 40 3c 0e 01 90 <0f> 0b 90 e9 bd e4 ff ff 65 48 8b 05 4e de 80 11 48 8d b8 98 09 00
RSP: 0018:ffffc90007fe7770 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000015 RDI: 0000000000040cc0
RBP: 0000000000000015 R08: 0000000000000005 R09: 0000000000000009
R10: 0000000000000015 R11: 0000000000000000 R12: 0000000000040cc0
R13: 1ffff92000ffcf36 R14: 1ffff92000ffcf04 R15: 0000000000000015
FS:  00007faf5eb7b6c0(0000) GS:ffff8880d67d9000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faf5dd84580 CR3: 000000002b30c000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2486
 ___kmalloc_large_node+0x104/0x150 mm/slub.c:5598
 __kmalloc_large_node_noprof+0x1c/0x70 mm/slub.c:5629
 __do_kmalloc_node mm/slub.c:5645 [inline]
 __kmalloc_noprof+0x6b1/0x9c0 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+0x35/0x3a0 drivers/gpu/drm/drm_syncobj.c:1297
 drm_syncobj_timeline_signal_ioctl+0x22a/0x8d0 drivers/gpu/drm/drm_syncobj.c:1624
 drm_ioctl_kernel+0x1f3/0x3e0 drivers/gpu/drm/drm_ioctl.c:804
 drm_ioctl+0x5e6/0xc60 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 fs/ioctl.c:583 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xc9/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7faf5dd9aeb9
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:00007faf5eb7b028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007faf5e016090 RCX: 00007faf5dd9aeb9
RDX: 0000200000000000 RSI: 00000000c01864cd RDI: 0000000000000004
RBP: 00007faf5de08c1f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007faf5e016128 R14: 00007faf5e016090 R15: 00007ffcb2c6d8e8
 </TASK>