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1
WARNING: mm/page_alloc.c:5280 at __alloc_frozen_pages_noprof+0x2427/0x2dc0 mm/page_alloc.c:5280, CPU#3: syz.0.1894/11925
Modules linked in:
CPU: 3 UID: 0 PID: 11925 Comm: syz.0.1894 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+0x2427/0x2dc0 mm/page_alloc.c:5280
Code: e9 8d fb ff ff 31 d2 be 28 12 00 00 48 c7 c7 a0 54 c1 8b e8 5b ab 68 ff 2e 2e 2e 31 c0 e9 02 ed ff ff c6 05 f7 70 57 0e 01 90 <0f> 0b 90 e9 6f df ff ff 48 c7 c7 a0 97 93 8e 45 89 f7 44 8b 74 24
RSP: 0018:ffffc90003f07728 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 1ffff920007e0eff RDI: 0000000000040cc0
RBP: 0000000000000015 R08: 0000000000000005 R09: 0000000000000009
R10: 0000000000000015 R11: 0000000000000001 R12: 0000000000040cc0
R13: 1ffff920007e0f3d R14: ffffffff9b24a404 R15: 0000000000000001
FS:  00007f3e79dd56c0(0000) GS:ffff8880d65ef000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3e7bb86480 CR3: 0000000020e12000 CR4: 0000000000352ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000010000001 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 alloc_pages_mpol+0x1fb/0x540 mm/mempolicy.c:2490
 ___kmalloc_large_node+0xe5/0x120 mm/slub.c:5302
 __kmalloc_large_node_noprof+0x1c/0x70 mm/slub.c:5333
 __do_kmalloc_node mm/slub.c:5350 [inline]
 __kmalloc_noprof+0x5a1/0x820 mm/slub.c:5387
 _kmalloc_noprof include/linux/slab.h:973 [inline]
 _kmalloc_array_noprof include/linux/slab.h:1189 [inline]
 drm_syncobj_array_find+0x34/0x3a0 drivers/gpu/drm/drm_syncobj.c:1274
 drm_syncobj_timeline_wait_ioctl+0x236/0x390 drivers/gpu/drm/drm_syncobj.c:1389
 drm_ioctl_kernel+0x1f3/0x3e0 drivers/gpu/drm/drm_ioctl.c:805
 drm_ioctl+0x5e6/0xc60 drivers/gpu/drm/drm_ioctl.c:902
 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+0x115/0x870 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3e7bb9ce59
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:00007f3e79dd5028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f3e7be16090 RCX: 00007f3e7bb9ce59
RDX: 0000200000000200 RSI: 00000000c03064ca RDI: 0000000000000001
RBP: 00007f3e7bc32e6f R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f3e7be16128 R14: 00007f3e7be16090 R15: 00007ffe7ed6c208
 </TASK>