------------[ cut here ]------------
kernel BUG at arch/x86/mm/physaddr.c:28!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 804 Comm: kworker/0:2 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
Workqueue: events drm_fb_helper_damage_work
RIP: 0010:__phys_addr+0xf7/0x100 arch/x86/mm/physaddr.c:28
Code: c7 e9 55 57 90 e8 59 f1 bc 00 eb 8b 48 c7 c7 f0 0f 9c 8e 48 89 de 48 89 ca 49 89 ce e8 12 be 98 03 4c 89 f1 e9 7b ff ff ff 90 <0f> 0b 90 0f 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900043b7558 EFLAGS: 00010206
RAX: 1ffffffff1c9e1e0 RBX: 7001000040765880 RCX: 0000000800170012
RDX: 0000000800170013 RSI: ffffea0000009c00 RDI: 7000888040765880
RBP: 7000888040765880 R08: 0000000000000000 R09: ffffffff8236588e
R10: dffffc0000000000 R11: fffffbfff20aed87 R12: ffffea0000000000
R13: 0000000000000000 R14: 70008880c0765880 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff88808c549000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd4a7f40a0 CR3: 0000000012422000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 virt_to_slab mm/slab.h:193 [inline]
 qlink_to_cache mm/kasan/quarantine.c:131 [inline]
 qlist_free_all+0x39/0x100 mm/kasan/quarantine.c:176
 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
 kasan_slab_alloc include/linux/kasan.h:253 [inline]
 slab_post_alloc_hook mm/slub.c:4584 [inline]
 slab_alloc_node mm/slub.c:4917 [inline]
 __kmalloc_cache_noprof+0x2ab/0x660 mm/slub.c:5485
 _kmalloc_noprof include/linux/slab.h:988 [inline]
 _kzalloc_noprof include/linux/slab.h:1309 [inline]
 drm_atomic_commit_alloc+0xa9/0x100 drivers/gpu/drm/drm_atomic.c:178
 drm_atomic_helper_dirtyfb+0x129/0xfd0 drivers/gpu/drm/drm_damage_helper.c:128
 drm_fbdev_shmem_helper_fb_dirty+0x160/0x310 drivers/gpu/drm/drm_fbdev_shmem.c:117
 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:339 [inline]
 drm_fb_helper_damage_work+0x84c/0xf20 drivers/gpu/drm/drm_fb_helper.c:365
 process_one_work kernel/workqueue.c:3322 [inline]
 process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486
 kthread+0x388/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__phys_addr+0xf7/0x100 arch/x86/mm/physaddr.c:28
Code: c7 e9 55 57 90 e8 59 f1 bc 00 eb 8b 48 c7 c7 f0 0f 9c 8e 48 89 de 48 89 ca 49 89 ce e8 12 be 98 03 4c 89 f1 e9 7b ff ff ff 90 <0f> 0b 90 0f 0b 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900043b7558 EFLAGS: 00010206
RAX: 1ffffffff1c9e1e0 RBX: 7001000040765880 RCX: 0000000800170012
RDX: 0000000800170013 RSI: ffffea0000009c00 RDI: 7000888040765880
RBP: 7000888040765880 R08: 0000000000000000 R09: ffffffff8236588e
R10: dffffc0000000000 R11: fffffbfff20aed87 R12: ffffea0000000000
R13: 0000000000000000 R14: 70008880c0765880 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff88808c549000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd4a7f40a0 CR3: 0000000012422000 CR4: 0000000000352ef0