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WARNING: CPU: 1 PID: 12362 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: 12362 Comm: syz-executor.0 Not tainted 5.15.0-rc1-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 4d ee 20 fd 85 db 75 1a e8 04 e7 20 fd 48 89 ef 5b 5d 41 5c e9 c8 66 f5 ff e8 f3 e6 20 fd 0f 0b eb ca e8 ea e6 20 fd <0f> 0b eb dd e8 51 30 68 fd eb 89 e8 4a 30 68 fd eb a8 0f 1f 84 00
RSP: 0018:ffffc900047f7b98 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 00000000fffffffc RCX: 0000000000000000
RDX: ffff88805fe58000 RSI: ffffffff845524f6 RDI: 0000000000000003
RBP: ffff88806110d738 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff845524d3 R11: 0000000000000001 R12: ffff888145a77000
R13: ffff88805fe1db58 R14: 00000000201d8000 R15: ffff88806110d7c8
FS:  00007f644c74f700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3351461000 CR3: 0000000062352000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
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: 0033:0x7f644cfd8782
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:00007f644c74f0f8 EFLAGS: 00000206 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000008011 RCX: 00007f644cfd8782
RDX: 0000000000000003 RSI: 0000000000004940 RDI: 00000000201d8000
RBP: 00000000201d8000 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000008011 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000020190000 R14: 0000000020000000 R15: 00000000201d8000