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: 1 PID: 3608 Comm: syz-executor229 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:ffffc9000373fbe0 EFLAGS: 00010246
RAX: 1ffffffffffffffe RBX: ffffffff8d523390 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88807e0dd000
RBP: dffffc0000000000 R08: ffffffff8508420f R09: fffffbfff1c4ace6
R10: fffffbfff1c4ace6 R11: 1ffffffff1c4ace5 R12: ffff888076151d60
R13: fffffffffffffff4 R14: ffff8880228984c0 R15: ffff88801ea74000
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffff4 CR3: 0000000026f46000 CR4: 00000000003506e0
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
 exit_task_work include/linux/task_work.h:38 [inline]
 do_exit+0x55e/0x20a0 kernel/exit.c:795
 do_group_exit+0x23b/0x2f0 kernel/exit.c:925
 __do_sys_exit_group kernel/exit.c:936 [inline]
 __se_sys_exit_group kernel/exit.c:934 [inline]
 __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:934
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fe757979299
Code: Unable to access opcode bytes at RIP 0x7fe75797926f.
RSP: 002b:00007ffe1db72138 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 00007fe7579fc470 RCX: 00007fe757979299
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 0000000000000001 R08: ffffffffffffffb8 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe7579fc470
R13: 0000000000000001 R14: 0000000000000000 R15: 0000000000000001
 </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:ffffc9000373fbe0 EFLAGS: 00010246
RAX: 1ffffffffffffffe RBX: ffffffff8d523390 RCX: dffffc0000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88807e0dd000
RBP: dffffc0000000000 R08: ffffffff8508420f R09: fffffbfff1c4ace6
R10: fffffbfff1c4ace6 R11: 1ffffffff1c4ace5 R12: ffff888076151d60
R13: fffffffffffffff4 R14: ffff8880228984c0 R15: ffff88801ea74000
FS:  0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: fffffffffffffff4 CR3: 0000000026f46000 CR4: 00000000003506e0
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