ci2 starts bisection 2023-04-26 19:59:11.03319607 +0000 UTC m=+35967.026543508
bisecting fixing commit since 493ffd6605b2d3d4dc7008ab927dba319f36671f
building syzkaller on 16a9c9e0fe35ce296944c5682f4a54d52bd67e71
ensuring issue is reproducible on original commit 493ffd6605b2d3d4dc7008ab927dba319f36671f

testing commit 493ffd6605b2d3d4dc7008ab927dba319f36671f gcc
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 6994d05037007ef4089175c7ffa53e786fc6e7710e26eed456feb4127c39f4d5
all runs: crashed: general protection fault in dtInsert
testing current HEAD 5c7ecada25d2086aee607ff7deb69e77faa4aa92
testing commit 5c7ecada25d2086aee607ff7deb69e77faa4aa92 gcc
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 8a80bdba5c89d20d30feb6aa94d5ec8572130b955b75f99213f66396db814480
all runs: crashed: general protection fault in dtInsert
revisions tested: 2, total time: 46m5.079211664s (build: 37m37.29996929s, test: 7m30.934078109s)
the crash still happens on HEAD
commit msg: Merge tag 'f2fs-for-6.4-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
crash: general protection fault in dtInsert
loop0: detected capacity change from 0 to 32768
general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 5408 Comm: syz-executor.0 Not tainted 6.3.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023
RIP: 0010:dtInsert+0x2f55/0x6c80
Code: 8b 9c 24 98 00 00 00 74 12 48 89 df e8 84 c8 02 ff 48 ba 00 00 00 00 00 fc ff df 4c 89 33 eb 03 45 31 f6 4c 89 f3 48 c1 eb 03 <80> 3c 13 00 74 08 4c 89 f7 e8 bd c7 02 ff 49 8b 36 48 85 f6 0f 84
RSP: 0018:ffffc90004e076e0 EFLAGS: 00010246
RAX: ffffc90004e07c30 RBX: 0000000000000000 RCX: ffffffff82bdaa05
RDX: dffffc0000000000 RSI: 1ffff920009c0f34 RDI: ffffc90004e07a70
RBP: ffffc90004e07b50 R08: dffffc0000000000 R09: fffff940001228ef
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 1ffff920009c0f35 R14: 0000000000000000 R15: ffff888071bd0000
FS:  00007faef2b69700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faef1b13e09 CR3: 000000007e766000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 jfs_create+0x5ec/0x970
 vfs_create+0x193/0x2d0
 do_mknodat+0x33f/0x640
 __x64_sys_mknodat+0xa4/0xb0
 do_syscall_64+0x41/0xc0
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7faef1a8b5a9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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:00007faef2b69168 EFLAGS: 00000246 ORIG_RAX: 0000000000000103
RAX: ffffffffffffffda RBX: 00007faef1babf80 RCX: 00007faef1a8b5a9
RDX: 0000000000000008 RSI: 0000000020000180 RDI: 0000000000000003
RBP: 00007faef1ae6580 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000103 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd4793885f R14: 00007faef2b69300 R15: 0000000000022000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:dtInsert+0x2f55/0x6c80
Code: 8b 9c 24 98 00 00 00 74 12 48 89 df e8 84 c8 02 ff 48 ba 00 00 00 00 00 fc ff df 4c 89 33 eb 03 45 31 f6 4c 89 f3 48 c1 eb 03 <80> 3c 13 00 74 08 4c 89 f7 e8 bd c7 02 ff 49 8b 36 48 85 f6 0f 84
RSP: 0018:ffffc90004e076e0 EFLAGS: 00010246
RAX: ffffc90004e07c30 RBX: 0000000000000000 RCX: ffffffff82bdaa05
RDX: dffffc0000000000 RSI: 1ffff920009c0f34 RDI: ffffc90004e07a70
RBP: ffffc90004e07b50 R08: dffffc0000000000 R09: fffff940001228ef
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: 1ffff920009c0f35 R14: 0000000000000000 R15: ffff888071bd0000
FS:  00007faef2b69700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f5cbde98378 CR3: 000000007e766000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
   0:	8b 9c 24 98 00 00 00 	mov    0x98(%rsp),%ebx
   7:	74 12                	je     0x1b
   9:	48 89 df             	mov    %rbx,%rdi
   c:	e8 84 c8 02 ff       	callq  0xff02c895
  11:	48 ba 00 00 00 00 00 	movabs $0xdffffc0000000000,%rdx
  18:	fc ff df
  1b:	4c 89 33             	mov    %r14,(%rbx)
  1e:	eb 03                	jmp    0x23
  20:	45 31 f6             	xor    %r14d,%r14d
  23:	4c 89 f3             	mov    %r14,%rbx
  26:	48 c1 eb 03          	shr    $0x3,%rbx
* 2a:	80 3c 13 00          	cmpb   $0x0,(%rbx,%rdx,1) <-- trapping instruction
  2e:	74 08                	je     0x38
  30:	4c 89 f7             	mov    %r14,%rdi
  33:	e8 bd c7 02 ff       	callq  0xff02c7f5
  38:	49 8b 36             	mov    (%r14),%rsi
  3b:	48 85 f6             	test   %rsi,%rsi
  3e:	0f                   	.byte 0xf
  3f:	84                   	.byte 0x84