BUG: stack guard page was hit at ffffc90006297f98 (stack is ffffc90006298000..ffffc9000629ffff) kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 1550 Comm: syz-executor.2 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:arch_stack_walk+0x2a/0x140 arch/x86/kernel/stacktrace.c:18 Code: 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 68 49 89 cf 49 89 d4 49 89 f6 49 89 fd 65 48 8b 04 25 28 00 00 00 48 89 45 d0 <48> c7 45 c8 00 00 00 00 48 c7 45 c0 00 00 00 00 48 c7 45 b8 00 00 RSP: 0018:ffffc90006297fa0 EFLAGS: 00010286 RAX: ddae6e62d8fff300 RBX: 1ffff92000c53012 RCX: 0000000000000000 RDX: ffff888114f7a780 RSI: ffffc90006298080 RDI: ffffffff815b4d50 RBP: ffffc90006298030 R08: dffffc0000000000 R09: ffffc90006298130 R10: 0000000000000006 R11: 0000000000000000 R12: ffff888114f7a780 R13: ffffffff815b4d50 R14: ffffc90006298080 R15: 0000000000000000 FS: 00007f6975e34700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90006297f98 CR3: 000000010eaf2000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: Modules linked in: ---[ end trace 0da0c8dc6c06f9f1 ]--- RIP: 0010:arch_stack_walk+0x2a/0x140 arch/x86/kernel/stacktrace.c:18 Code: 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 68 49 89 cf 49 89 d4 49 89 f6 49 89 fd 65 48 8b 04 25 28 00 00 00 48 89 45 d0 <48> c7 45 c8 00 00 00 00 48 c7 45 c0 00 00 00 00 48 c7 45 b8 00 00 RSP: 0018:ffffc90006297fa0 EFLAGS: 00010286 RAX: ddae6e62d8fff300 RBX: 1ffff92000c53012 RCX: 0000000000000000 RDX: ffff888114f7a780 RSI: ffffc90006298080 RDI: ffffffff815b4d50 RBP: ffffc90006298030 R08: dffffc0000000000 R09: ffffc90006298130 R10: 0000000000000006 R11: 0000000000000000 R12: ffff888114f7a780 R13: ffffffff815b4d50 R14: ffffc90006298080 R15: 0000000000000000 FS: 00007f6975e34700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90006297f98 CR3: 000000010eaf2000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 55 push %rbp 1: 48 89 e5 mov %rsp,%rbp 4: 41 57 push %r15 6: 41 56 push %r14 8: 41 55 push %r13 a: 41 54 push %r12 c: 53 push %rbx d: 48 83 ec 68 sub $0x68,%rsp 11: 49 89 cf mov %rcx,%r15 14: 49 89 d4 mov %rdx,%r12 17: 49 89 f6 mov %rsi,%r14 1a: 49 89 fd mov %rdi,%r13 1d: 65 48 8b 04 25 28 00 mov %gs:0x28,%rax 24: 00 00 26: 48 89 45 d0 mov %rax,-0x30(%rbp) * 2a: 48 c7 45 c8 00 00 00 movq $0x0,-0x38(%rbp) <-- trapping instruction 31: 00 32: 48 c7 45 c0 00 00 00 movq $0x0,-0x40(%rbp) 39: 00 3a: 48 rex.W 3b: c7 .byte 0xc7 3c: 45 rex.RB 3d: b8 .byte 0xb8