BUG: stack guard page was hit at ffffc90000c2ffb8 (stack is ffffc90000c30000..ffffc90000c37fff) kernel stack overflow (double-fault): 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 365 Comm: syz-executor380 Not tainted 5.10.95-syzkaller-00575-ga9839858b556 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:arch_stack_walk+0x4a/0x140 arch/x86/kernel/stacktrace.c:18 Code: 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 00 00 48 c7 45 b0 00 00 00 00 <48> c7 45 a8 00 00 00 00 48 c7 45 a0 00 00 00 00 48 c7 45 98 00 00 RSP: 0018:ffffc90000c2ffc0 EFLAGS: 00010286 RAX: f2fe978a75b25c00 RBX: 1ffff92000186016 RCX: 0000000000000000 RDX: ffff88810799a780 RSI: ffffc90000c300a0 RDI: ffffffff815bf740 RBP: ffffc90000c30050 R08: dffffc0000000000 R09: ffffc90000c300a0 R10: fffff52000186017 R11: 0000000000000000 R12: ffff88810799a780 R13: ffffffff815bf740 R14: ffffc90000c300a0 R15: 0000000000000000 FS: 0000555556aaf300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90000c2ffb8 CR3: 00000001077ae000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: Modules linked in: ---[ end trace 3b6037dd09a196aa ]--- RIP: 0010:arch_stack_walk+0x4a/0x140 arch/x86/kernel/stacktrace.c:18 Code: 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 00 00 48 c7 45 b0 00 00 00 00 <48> c7 45 a8 00 00 00 00 48 c7 45 a0 00 00 00 00 48 c7 45 98 00 00 RSP: 0018:ffffc90000c2ffc0 EFLAGS: 00010286 RAX: f2fe978a75b25c00 RBX: 1ffff92000186016 RCX: 0000000000000000 RDX: ffff88810799a780 RSI: ffffc90000c300a0 RDI: ffffffff815bf740 RBP: ffffc90000c30050 R08: dffffc0000000000 R09: ffffc90000c300a0 R10: fffff52000186017 R11: 0000000000000000 R12: ffff88810799a780 R13: ffffffff815bf740 R14: ffffc90000c300a0 R15: 0000000000000000 FS: 0000555556aaf300(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: ffffc90000c2ffb8 CR3: 00000001077ae000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 04 25 add $0x25,%al 2: 28 00 sub %al,(%rax) 4: 00 00 add %al,(%rax) 6: 48 89 45 d0 mov %rax,-0x30(%rbp) a: 48 c7 45 c8 00 00 00 movq $0x0,-0x38(%rbp) 11: 00 12: 48 c7 45 c0 00 00 00 movq $0x0,-0x40(%rbp) 19: 00 1a: 48 c7 45 b8 00 00 00 movq $0x0,-0x48(%rbp) 21: 00 22: 48 c7 45 b0 00 00 00 movq $0x0,-0x50(%rbp) 29: 00 * 2a: 48 c7 45 a8 00 00 00 movq $0x0,-0x58(%rbp) <-- trapping instruction 31: 00 32: 48 c7 45 a0 00 00 00 movq $0x0,-0x60(%rbp) 39: 00 3a: 48 rex.W 3b: c7 .byte 0xc7 3c: 45 98 rex.RB cwtl