general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027]
CPU: 0 PID: 5431 Comm: syz-executor.0 Not tainted 6.4.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023
RIP: 0010:crypto_shash_alg include/crypto/hash.h:827 [inline]
RIP: 0010:crypto_shash_update crypto/shash.c:124 [inline]
RIP: 0010:shash_ahash_update+0xdb/0x1e0 crypto/shash.c:306
Code: e8 6a d7 ff ff 85 c0 89 c2 7e 6c 41 80 7d 00 00 48 8b 74 24 40 0f 85 9d 00 00 00 49 8b 1c 24 48 8d 7b 20 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 bb 00 00 00 48 8b 5b 20 48 8d 7b 2c 48 89 f8 48
RSP: 0018:ffffc900048af978 EFLAGS: 00010202
RAX: 0000000000000004 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 0000000000000f00 RSI: ffff888066e5b100 RDI: 0000000000000020
RBP: dffffc0000000000 R08: ffff88807d8e6aa8 R09: 000000000000ff00
R10: 7fffffffffff00ff R11: ffffed100fb1cd01 R12: ffff88807d8e6b58
R13: ffffed100fb1cd6b R14: 1ffff92000915f31 R15: ffff88807d8e6a40
FS:  00007fd220e53700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 0000000028c90000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 crypto_ahash_update include/crypto/hash.h:608 [inline]
 hash_sendmsg+0x314/0xc60 crypto/algif_hash.c:139
 sock_sendmsg_nosec net/socket.c:724 [inline]
 sock_sendmsg+0xc0/0x150 net/socket.c:747
 ____sys_sendmsg+0x5e5/0x880 net/socket.c:2505
 ___sys_sendmsg+0xdb/0x160 net/socket.c:2559
 __sys_sendmsg+0xc7/0x160 net/socket.c:2588
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fd22008c389
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd220e53168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fd2201abf80 RCX: 00007fd22008c389
RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000004
RBP: 00007fd2200d7493 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffc247e1d5f R14: 00007fd220e53300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:crypto_shash_alg include/crypto/hash.h:827 [inline]
RIP: 0010:crypto_shash_update crypto/shash.c:124 [inline]
RIP: 0010:shash_ahash_update+0xdb/0x1e0 crypto/shash.c:306
Code: e8 6a d7 ff ff 85 c0 89 c2 7e 6c 41 80 7d 00 00 48 8b 74 24 40 0f 85 9d 00 00 00 49 8b 1c 24 48 8d 7b 20 48 89 f8 48 c1 e8 03 <80> 3c 28 00 0f 85 bb 00 00 00 48 8b 5b 20 48 8d 7b 2c 48 89 f8 48
RSP: 0018:ffffc900048af978 EFLAGS: 00010202
RAX: 0000000000000004 RBX: 0000000000000000 RCX: dffffc0000000000
RDX: 0000000000000f00 RSI: ffff888066e5b100 RDI: 0000000000000020
RBP: dffffc0000000000 R08: ffff88807d8e6aa8 R09: 000000000000ff00
R10: 7fffffffffff00ff R11: ffffed100fb1cd01 R12: ffff88807d8e6b58
R13: ffffed100fb1cd6b R14: 1ffff92000915f31 R15: ffff88807d8e6a40
FS:  00007fd220e53700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000000 CR3: 0000000028c90000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	e8 6a d7 ff ff       	callq  0xffffd76f
   5:	85 c0                	test   %eax,%eax
   7:	89 c2                	mov    %eax,%edx
   9:	7e 6c                	jle    0x77
   b:	41 80 7d 00 00       	cmpb   $0x0,0x0(%r13)
  10:	48 8b 74 24 40       	mov    0x40(%rsp),%rsi
  15:	0f 85 9d 00 00 00    	jne    0xb8
  1b:	49 8b 1c 24          	mov    (%r12),%rbx
  1f:	48 8d 7b 20          	lea    0x20(%rbx),%rdi
  23:	48 89 f8             	mov    %rdi,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
* 2a:	80 3c 28 00          	cmpb   $0x0,(%rax,%rbp,1) <-- trapping instruction
  2e:	0f 85 bb 00 00 00    	jne    0xef
  34:	48 8b 5b 20          	mov    0x20(%rbx),%rbx
  38:	48 8d 7b 2c          	lea    0x2c(%rbx),%rdi
  3c:	48 89 f8             	mov    %rdi,%rax
  3f:	48                   	rex.W