------------[ cut here ]------------ WARNING: CPU: 3 PID: 24402 at mm/page_alloc.c:5124 __alloc_frozen_pages_noprof+0x30b/0x23f0 mm/page_alloc.c:5124 Modules linked in: CPU: 3 UID: 0 PID: 24402 Comm: syz.4.4673 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__alloc_frozen_pages_noprof+0x30b/0x23f0 mm/page_alloc.c:5124 Code: f0 5b 5d 41 5c 41 5d 41 5e 41 5f e9 cf bf 81 09 83 fe 0a 0f 86 0a fe ff ff 80 3d bd a3 7e 0e 00 75 0b c6 05 b4 a3 7e 0e 01 90 <0f> 0b 90 45 31 f6 eb 81 4d 85 f6 74 22 44 89 fa 89 ee 4c 89 f7 e8 RSP: 0018:ffffc9002307f7e0 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: 1ffff9200460ff11 R14: ffffffff9ae78a24 R15: 0000000000000015 FS: 00007f7e84b586c0(0000) GS:ffff8880d69bc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7e83d729a0 CR3: 0000000040833000 CR4: 0000000000352ef0 Call Trace: alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2416 ___kmalloc_large_node+0xed/0x160 mm/slub.c:4306 __kmalloc_large_node_noprof+0x1c/0x70 mm/slub.c:4337 __do_kmalloc_node mm/slub.c:4353 [inline] __kmalloc_noprof.cold+0xc/0x61 mm/slub.c:4377 kmalloc_noprof include/linux/slab.h:909 [inline] kmalloc_array_noprof include/linux/slab.h:948 [inline] drm_syncobj_array_find+0x35/0x3c0 drivers/gpu/drm/drm_syncobj.c:1297 drm_syncobj_wait_ioctl+0x238/0x390 drivers/gpu/drm/drm_syncobj.c:1368 drm_ioctl_kernel+0x1f4/0x3e0 drivers/gpu/drm/drm_ioctl.c:796 drm_ioctl+0x5c9/0xc30 drivers/gpu/drm/drm_ioctl.c:893 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:598 [inline] __se_sys_ioctl fs/ioctl.c:584 [inline] __x64_sys_ioctl+0x18b/0x210 fs/ioctl.c:584 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f7e83d8ebe9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f7e84b58038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f7e83fb5fa0 RCX: 00007f7e83d8ebe9 RDX: 0000200000000080 RSI: 00000000c02864c3 RDI: 0000000000000003 RBP: 00007f7e83e11e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f7e83fb6038 R14: 00007f7e83fb5fa0 R15: 00007ffda72f1e88