BUG: stack guard page was hit at ffffc900012dffe8 (stack is ffffc900012e0000..ffffc900012e7fff) kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 1881 Comm: syz-executor.0 Not tainted 5.10.112-syzkaller-00287-gde64d941a71a #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:check_preemption_disabled+0x18/0x100 lib/smp_processor_id.c:13 Code: 40 d2 43 85 e8 09 00 00 00 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 41 57 41 56 41 54 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 <48> 89 45 d8 65 8b 1d d5 7e 71 7b 65 8b 05 22 db 71 7b a9 ff ff ff RSP: 0018:ffffc900012dfff0 EFLAGS: 00010086 RAX: e760de4d7b569700 RBX: ffff8881f7055e00 RCX: 1ffff9200025c044 RDX: 1ffff9200025c024 RSI: ffffffff8543d240 RDI: ffffffff8543d200 RBP: ffffc900012e0020 R08: ffffffff86c2c008 R09: ffffffff86c2c018 R10: ffffffff86c2c010 R11: ffffffff86c2c003 R12: 0000000000000001 R13: dffffc0000000000 R14: dffffc0000000000 R15: ffff88811d590000 FS: 00007f8698d41700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc900012dffe8 CR3: 0000000119e63000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: Modules linked in: ---[ end trace 9761b35dad3656d6 ]--- RIP: 0010:check_preemption_disabled+0x18/0x100 lib/smp_processor_id.c:13 Code: 40 d2 43 85 e8 09 00 00 00 5d c3 0f 1f 80 00 00 00 00 55 48 89 e5 41 57 41 56 41 54 53 48 83 ec 10 65 48 8b 04 25 28 00 00 00 <48> 89 45 d8 65 8b 1d d5 7e 71 7b 65 8b 05 22 db 71 7b a9 ff ff ff RSP: 0018:ffffc900012dfff0 EFLAGS: 00010086 RAX: e760de4d7b569700 RBX: ffff8881f7055e00 RCX: 1ffff9200025c044 RDX: 1ffff9200025c024 RSI: ffffffff8543d240 RDI: ffffffff8543d200 RBP: ffffc900012e0020 R08: ffffffff86c2c008 R09: ffffffff86c2c018 R10: ffffffff86c2c010 R11: ffffffff86c2c003 R12: 0000000000000001 R13: dffffc0000000000 R14: dffffc0000000000 R15: ffff88811d590000 FS: 00007f8698d41700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc900012dffe8 CR3: 0000000119e63000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 40 d2 43 85 rolb %cl,-0x7b(%rbx) 4: e8 09 00 00 00 callq 0x12 9: 5d pop %rbp a: c3 retq b: 0f 1f 80 00 00 00 00 nopl 0x0(%rax) 12: 55 push %rbp 13: 48 89 e5 mov %rsp,%rbp 16: 41 57 push %r15 18: 41 56 push %r14 1a: 41 54 push %r12 1c: 53 push %rbx 1d: 48 83 ec 10 sub $0x10,%rsp 21: 65 48 8b 04 25 28 00 mov %gs:0x28,%rax 28: 00 00 * 2a: 48 89 45 d8 mov %rax,-0x28(%rbp) <-- trapping instruction 2e: 65 8b 1d d5 7e 71 7b mov %gs:0x7b717ed5(%rip),%ebx # 0x7b717f0a 35: 65 8b 05 22 db 71 7b mov %gs:0x7b71db22(%rip),%eax # 0x7b71db5e 3c: a9 .byte 0xa9 3d: ff (bad) 3e: ff (bad) 3f: ff .byte 0xff