------------[ cut here ]------------ 1 WARNING: mm/page_alloc.c:5216 at __alloc_frozen_pages_noprof+0x1e8a/0x2410 mm/page_alloc.c:5216, CPU#2: syz.2.1616/10336 Modules linked in: CPU: 2 UID: 0 PID: 10336 Comm: syz.2.1616 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 73 bc 0d 00 e9 05 fa ff ff c6 05 f2 2b 3c 0e 01 90 <0f> 0b 90 e9 bd e4 ff ff 65 48 8b 05 ce ad 80 11 48 8d b8 98 09 00 RSP: 0018:ffffc90006597750 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: 1ffff92000cb2f32 R14: 1ffff92000cb2f00 R15: 0000000000000015 FS: 00007fa202df96c0(0000) GS:ffff8880d67dc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffffffff000 CR3: 00000000342b6000 CR4: 0000000000352ef0 Call Trace: 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_query_ioctl+0x25d/0xb70 drivers/gpu/drm/drm_syncobj.c:1695 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: 0033:0x7fa201f9acb9 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:00007fa202df9028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fa202215fa0 RCX: 00007fa201f9acb9 RDX: 0000200000000100 RSI: 00000000c01864cb RDI: 0000000000000006 RBP: 00007fa202008bf7 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fa202216038 R14: 00007fa202215fa0 R15: 00007ffd7f4e1cf8