------------[ cut here ]------------ 1 WARNING: mm/page_alloc.c:5340 at alloc_order_allowed mm/page_alloc.c:5340 [inline], CPU#1: syz.9.1883/14593 WARNING: mm/page_alloc.c:5340 at __alloc_frozen_pages_noprof+0x2137/0x3300 mm/page_alloc.c:5397, CPU#1: syz.9.1883/14593 Modules linked in: CPU: 1 UID: 0 PID: 14593 Comm: syz.9.1883 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 0f a4 ba 0f 00 0f 85 9d e2 ff ff c6 05 02 a4 ba 0f 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:ffffc90004557728 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 000000000000000d RDI: 0000000000040cc0 RBP: 000000000000000d R08: 0000000000000000 R09: 0000000000000009 R10: 000000000000000d R11: 0000000000000000 R12: 0000000000040cc0 R13: 1ffff920008aaf41 R14: 0000000000000000 R15: 1ffff920008aaeff FS: 00007f67f8bc46c0(0000) GS:ffff8880d4a47000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f67f5fd4ff8 CR3: 000000002f5b5000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 000000000000aee9 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: 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_signal_ioctl+0x20b/0x460 drivers/gpu/drm/drm_syncobj.c:1563 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: 0033:0x7f67f7d9e199 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:00007f67f8bc4028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f67f8026090 RCX: 00007f67f7d9e199 RDX: 0000200000000080 RSI: 00000000c01064c5 RDI: 0000000000000005 RBP: 00007f67f7e35888 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f67f8026128 R14: 00007f67f8026090 R15: 00007ffe17f15a08