BUG: unable to handle page fault for address: fffffffffffffff4
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD ca8f067 P4D ca8f067 PUD ca91067 PMD 0 
Oops: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 10692 Comm: syz-executor.0 Not tainted 5.19.0-syzkaller-13930-g7ebfc85e2cd7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/22/2022
RIP: 0010:dma_unmap_sgtable include/linux/dma-mapping.h:378 [inline]
RIP: 0010:put_sg_table drivers/dma-buf/udmabuf.c:89 [inline]
RIP: 0010:release_udmabuf+0xda/0x250 drivers/dma-buf/udmabuf.c:114
Code: 48 89 df e8 38 3a d3 fc 4c 8b 3b 4c 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 4c 89 ef e8 16 3a d3 fc <49> 8b 5d 00 49 8d 7d 0c 48 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00
RSP: 0018:ffffc90003517d20 EFLAGS: 00010246
RAX: 1ffffffffffffffe RBX: ffffffff8d523390 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88807b2a4800
RBP: dffffc0000000000 R08: ffffffff8508420f R09: fffffbfff1c4ace6
R10: fffffbfff1c4ace6 R11: 1ffffffff1c4ace5 R12: ffff88802d6f05e0
R13: fffffffffffffff4 R14: ffff88807db76800 R15: ffff888147938000
FS:  00005555564b6400(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffff4 CR3: 0000000082c3f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 dma_buf_release+0x103/0x250 drivers/dma-buf/dma-buf.c:78
 __dentry_kill+0x418/0x5b0 fs/dcache.c:612
 dentry_kill+0xbb/0x290
 dput+0x1f3/0x410 fs/dcache.c:913
 __fput+0x5a8/0x820 fs/file_table.c:333
 task_work_run+0x146/0x1c0 kernel/task_work.c:177
 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
 exit_to_user_mode_loop+0x134/0x160 kernel/entry/common.c:169
 exit_to_user_mode_prepare+0xad/0x110 kernel/entry/common.c:201
 __syscall_exit_to_user_mode_work kernel/entry/common.c:283 [inline]
 syscall_exit_to_user_mode+0x2e/0x60 kernel/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f97b143bebb
Code: 0f 05 48 3d 00 f0 ff ff 77 45 c3 0f 1f 40 00 48 83 ec 18 89 7c 24 0c e8 63 fc ff ff 8b 7c 24 0c 41 89 c0 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 44 89 c7 89 44 24 0c e8 a1 fc ff ff 8b 44
RSP: 002b:00007fff0b350e90 EFLAGS: 00000293 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 0000000000000007 RCX: 00007f97b143bebb
RDX: 00007f97b15a0428 RSI: ffffffffffffffff RDI: 0000000000000006
RBP: 00007f97b159d980 R08: 0000000000000000 R09: 00007f97b15a0430
R10: 00007fff0b350f90 R11: 0000000000000293 R12: 0000000000051aa8
R13: 00007fff0b350f90 R14: 00007f97b159bf80 R15: 0000000000000032
 </TASK>
Modules linked in:
CR2: fffffffffffffff4
---[ end trace 0000000000000000 ]---
RIP: 0010:dma_unmap_sgtable include/linux/dma-mapping.h:378 [inline]
RIP: 0010:put_sg_table drivers/dma-buf/udmabuf.c:89 [inline]
RIP: 0010:release_udmabuf+0xda/0x250 drivers/dma-buf/udmabuf.c:114
Code: 48 89 df e8 38 3a d3 fc 4c 8b 3b 4c 89 e8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 4c 89 ef e8 16 3a d3 fc <49> 8b 5d 00 49 8d 7d 0c 48 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00
RSP: 0018:ffffc90003517d20 EFLAGS: 00010246
RAX: 1ffffffffffffffe RBX: ffffffff8d523390 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88807b2a4800
RBP: dffffc0000000000 R08: ffffffff8508420f R09: fffffbfff1c4ace6
R10: fffffbfff1c4ace6 R11: 1ffffffff1c4ace5 R12: ffff88802d6f05e0
R13: fffffffffffffff4 R14: ffff88807db76800 R15: ffff888147938000
FS:  00005555564b6400(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffff4 CR3: 0000000082c3f000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	48 89 df             	mov    %rbx,%rdi
   3:	e8 38 3a d3 fc       	callq  0xfcd33a40
   8:	4c 8b 3b             	mov    (%rbx),%r15
   b:	4c 89 e8             	mov    %r13,%rax
   e:	48 c1 e8 03          	shr    $0x3,%rax
  12:	48 b9 00 00 00 00 00 	movabs $0xdffffc0000000000,%rcx
  19:	fc ff df
  1c:	80 3c 08 00          	cmpb   $0x0,(%rax,%rcx,1)
  20:	74 08                	je     0x2a
  22:	4c 89 ef             	mov    %r13,%rdi
  25:	e8 16 3a d3 fc       	callq  0xfcd33a40
* 2a:	49 8b 5d 00          	mov    0x0(%r13),%rbx <-- trapping instruction
  2e:	49 8d 7d 0c          	lea    0xc(%r13),%rdi
  32:	48 89 f8             	mov    %rdi,%rax
  35:	48 c1 e8 03          	shr    $0x3,%rax
  39:	48                   	rex.W
  3a:	b9 00 00 00 00       	mov    $0x0,%ecx