------------[ cut here ]------------ WARNING: CPU: 0 PID: 17696 at drivers/gpu/drm/drm_gem_shmem_helper.c:562 drm_gem_shmem_vm_open+0x96/0xb0 drivers/gpu/drm/drm_gem_shmem_helper.c:562 Modules linked in: CPU: 0 PID: 17696 Comm: syz-executor.4 Not tainted 5.15.0-rc6-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:drm_gem_shmem_vm_open+0x96/0xb0 drivers/gpu/drm/drm_gem_shmem_helper.c:562 Code: 89 c6 e8 cd f3 1f fd 85 db 75 1a e8 14 eb 1f fd 48 89 ef 5b 5d 41 5c e9 08 67 f5 ff e8 03 eb 1f fd 0f 0b eb ca e8 fa ea 1f fd <0f> 0b eb dd e8 a1 b8 66 fd eb 89 e8 9a b8 66 fd eb a8 0f 1f 84 00 RSP: 0018:ffffc90016f5fb98 EFLAGS: 00010212 RAX: 0000000000002d71 RBX: 00000000fffffffc RCX: ffffc90014405000 RDX: 0000000000040000 RSI: ffffffff84563896 RDI: 0000000000000003 RBP: ffff88807a934840 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff84563873 R11: 0000000000000001 R12: ffff88814640e000 R13: ffff88806deca778 R14: 0000000020190000 R15: ffff88807a9348d0 FS: 00007f6e54825700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2b46a513a4 CR3: 000000001c7c5000 CR4: 00000000003506e0 Call Trace: __split_vma+0x23c/0x550 mm/mmap.c:2737 __do_munmap+0x32a/0x11c0 mm/mmap.c:2841 do_munmap mm/mmap.c:2895 [inline] munmap_vma_range mm/mmap.c:603 [inline] mmap_region+0x2fd/0x1650 mm/mmap.c:1742 do_mmap+0x869/0xfb0 mm/mmap.c:1575 vm_mmap_pgoff+0x1b7/0x290 mm/util.c:519 ksys_mmap_pgoff+0x49f/0x620 mm/mmap.c:1624 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f6e572afa82 Code: 00 00 00 00 00 0f 1f 00 41 f7 c1 ff 0f 00 00 75 27 55 48 89 fd 53 89 cb 48 85 ff 74 3b 41 89 da 48 89 ef b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 66 5b 5d c3 0f 1f 00 48 c7 c0 bc ff ff ff 64 RSP: 002b:00007f6e548250f8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 0000000000008011 RCX: 00007f6e572afa82 RDX: 0000000000000003 RSI: 0000000000008000 RDI: 0000000020190000 RBP: 0000000020190000 R08: 0000000000000005 R09: 0000000010000000 R10: 0000000000008011 R11: 0000000000000206 R12: 0000000020000100 R13: 0000000020190000 R14: 0000000020000000 R15: 000000002017c000