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1
WARNING: mm/slub.c:5459 at ___kmalloc_large_node+0x132/0x170 mm/slub.c:5459, CPU#3: syz.2.1848/12611
Modules linked in:
CPU: 3 UID: 0 PID: 12611 Comm: syz.2.1848 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:___kmalloc_large_node+0x132/0x170 mm/slub.c:5459
Code: db 0f 85 66 ff ff ff 45 31 e4 eb cb 48 81 ff 00 00 40 00 0f 86 07 ff ff ff 80 3d 18 26 d6 0f 00 75 0b c6 05 0f 26 d6 0f 01 90 <0f> 0b 90 48 83 c4 08 31 c0 5b 5d 41 5c 41 5d 41 5e c3 cc cc cc cc
RSP: 0018:ffffc90006187a60 EFLAGS: 00010246
RAX: ffffffff85e71ea4 RBX: 00000000bc000000 RCX: ffffc900264b6000
RDX: 00000000ffffffff RSI: 0000000000000cc0 RDI: 00000000bc000000
RBP: 0000000000000cc0 R08: 0000000000000000 R09: 000000002f000000
R10: 0000000000000200 R11: 0000000000000001 R12: 0000000000000cc0
R13: 00000000ffffffff R14: 00000000bc000000 R15: ffff88805f2ac000
FS:  00007f42d42556c0(0000) GS:ffff8880d478e000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000001054 CR3: 0000000037810000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 __kmalloc_large_node_noprof+0x1c/0x70 mm/slub.c:5502
 __do_kmalloc_node mm/slub.c:5519 [inline]
 __kmalloc_noprof+0x5a3/0x840 mm/slub.c:5556
 _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:1241
 drm_syncobj_timeline_signal_ioctl+0x22a/0x8d0 drivers/gpu/drm/drm_syncobj.c:1568
 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: 0033:0x7f42d339f559
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:00007f42d4255028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f42d3626180 RCX: 00007f42d339f559
RDX: 0000200000001040 RSI: 00000000c01864cd RDI: 0000000000000005
RBP: 00007f42d3436b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f42d3626218 R14: 00007f42d3626180 R15: 00007ffdc94b77d8
 </TASK>