BUG: stack guard page was hit at ffffc900018cffb8 (stack is ffffc900018d0000..ffffc900018d7fff)
kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 2750 Comm: syz-executor.3 Not tainted 5.10.178-syzkaller-00127-g43c801dc3325 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/25/2023
RIP: 0010:__unwind_start+0x2f/0x3a0 arch/x86/kernel/unwind_frame.c:368
Code: 57 41 56 41 55 41 54 53 48 83 ec 48 48 89 4d d0 49 89 d4 49 89 f5 49 89 ff 48 bb 00 00 00 00 00 fc ff df ba 60 00 00 00 31 f6 <e8> 4c 70 75 00 49 8d 7f 28 48 89 f8 48 c1 e8 03 80 3c 18 00 74 05
RSP: 0018:ffffc900018cffc0 EFLAGS: 00010246
RAX: ffff88810ceabb40 RBX: dffffc0000000000 RCX: ffffc900018d00d0
RDX: 0000000000000060 RSI: 0000000000000000 RDI: ffffc900018d0040
RBP: ffffc900018d0030 R08: dffffc0000000000 R09: ffffc900018d0200
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff88810ceabb40 R14: ffffc900018d0120 R15: ffffc900018d0040
FS: 00007f7e28c19700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc900018cffb8 CR3: 000000010f879000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
Modules linked in:
---[ end trace bab7eefd4181181b ]---
RIP: 0010:__unwind_start+0x2f/0x3a0 arch/x86/kernel/unwind_frame.c:368
Code: 57 41 56 41 55 41 54 53 48 83 ec 48 48 89 4d d0 49 89 d4 49 89 f5 49 89 ff 48 bb 00 00 00 00 00 fc ff df ba 60 00 00 00 31 f6 <e8> 4c 70 75 00 49 8d 7f 28 48 89 f8 48 c1 e8 03 80 3c 18 00 74 05
RSP: 0018:ffffc900018cffc0 EFLAGS: 00010246
RAX: ffff88810ceabb40 RBX: dffffc0000000000 RCX: ffffc900018d00d0
RDX: 0000000000000060 RSI: 0000000000000000 RDI: ffffc900018d0040
RBP: ffffc900018d0030 R08: dffffc0000000000 R09: ffffc900018d0200
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff88810ceabb40 R14: ffffc900018d0120 R15: ffffc900018d0040
FS: 00007f7e28c19700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffc900018cffb8 CR3: 000000010f879000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 57 push %rdi
1: 41 56 push %r14
3: 41 55 push %r13
5: 41 54 push %r12
7: 53 push %rbx
8: 48 83 ec 48 sub $0x48,%rsp
c: 48 89 4d d0 mov %rcx,-0x30(%rbp)
10: 49 89 d4 mov %rdx,%r12
13: 49 89 f5 mov %rsi,%r13
16: 49 89 ff mov %rdi,%r15
19: 48 bb 00 00 00 00 00 movabs $0xdffffc0000000000,%rbx
20: fc ff df
23: ba 60 00 00 00 mov $0x60,%edx
28: 31 f6 xor %esi,%esi
* 2a: e8 4c 70 75 00 callq 0x75707b <-- trapping instruction
2f: 49 8d 7f 28 lea 0x28(%r15),%rdi
33: 48 89 f8 mov %rdi,%rax
36: 48 c1 e8 03 shr $0x3,%rax
3a: 80 3c 18 00 cmpb $0x0,(%rax,%rbx,1)
3e: 74 05 je 0x45