netlink: 32 bytes leftover after parsing attributes in process `syz.1.1205'. capability: warning: `syz.1.1205' uses 32-bit capabilities (legacy support in use) ------------[ cut here ]------------ 1 WARNING: mm/page_alloc.c:5220 at __alloc_frozen_pages_noprof+0x22ae/0x2ae0 mm/page_alloc.c:5220, CPU#3: syz.1.1205/9846 Modules linked in: CPU: 3 UID: 0 PID: 9846 Comm: syz.1.1205 Not tainted syzkaller #0 PREEMPT(full) 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+0x22ae/0x2ae0 mm/page_alloc.c:5220 Code: 6e f9 ff ff e8 d3 ea 86 ff 84 c0 0f 85 fb fa ff ff 48 8d 3d a4 db 78 0e 67 48 0f b9 3a e9 ea fa ff ff c6 05 50 57 5c 0e 01 90 <0f> 0b 90 e9 a7 e0 ff ff 48 8d bc 24 a8 01 00 00 e8 1d 71 de ff 84 RSP: 0018:ffffc900037c7760 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000016 RDI: 0000000000040cc0 RBP: 0000000000000016 R08: 0000000000000005 R09: 0000000000000009 R10: 0000000000000016 R11: 0000000000000000 R12: 0000000000040cc0 R13: 1ffff920006f8f3b R14: 0000000000000016 R15: 1ffff920006f8f05 FS: 00007fe18f9bf6c0(0000) GS:ffff8880d668b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000001680 CR3: 0000000059fee000 CR4: 0000000000352ef0 Call Trace: alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2485 ___kmalloc_large_node+0x104/0x150 mm/slub.c:5118 __kmalloc_large_node_noprof+0x1c/0x70 mm/slub.c:5149 __do_kmalloc_node mm/slub.c:5165 [inline] __kmalloc_noprof+0x5be/0x850 mm/slub.c:5189 kmalloc_noprof include/linux/slab.h:966 [inline] kmalloc_array_noprof include/linux/slab.h:1113 [inline] drm_syncobj_array_find+0x35/0x3a0 drivers/gpu/drm/drm_syncobj.c:1272 drm_syncobj_timeline_signal_ioctl+0x22a/0x8d0 drivers/gpu/drm/drm_syncobj.c:1599 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+0x106/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe18eb9bf79 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:00007fe18f9bf028 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fe18ee16090 RCX: 00007fe18eb9bf79 RDX: 0000200000000340 RSI: 00000000c01864cd RDI: 0000000000000003 RBP: 00007fe18ec327e0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fe18ee16128 R14: 00007fe18ee16090 R15: 00007ffca4745fd8