general protection fault, probably for non-canonical address 0x1ffffffff1215a8d: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 8801 Comm: syz-executor.3 Not tainted 5.6.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__read_once_size include/linux/compiler.h:199 [inline] RIP: 0010:do_syscall_64+0x5f/0x1b0 arch/x86/entry/common.c:289 Code: 48 c7 c7 68 d4 0a 89 e8 4f 72 b0 00 48 83 3d ef 5b 0a 08 00 0f 84 58 01 00 00 fb 66 0f 1f 44 00 00 65 48 8b 1c 25 c0 1d 02 00 <48> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 RSP: 0018:ffffc90002a67f28 EFLAGS: 00010282 RAX: 1ffffffff1215a8d RBX: ffff888060846180 RCX: ffff888060846180 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff8880608469c4 RBP: 0000000000000000 R08: ffffffff817a3af0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 00000000000000e4 R13: dffffc0000000000 R14: ffffc90002a67f58 R15: 0000000000000000 FS: 0000000001a8e940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f75f09b6518 CR3: 0000000060ff2000 CR4: 00000000001406f0 DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600 Call Trace: entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45f2ea Code: 25 18 00 00 00 00 74 01 f0 48 0f b1 3d 5f 96 82 00 48 39 c2 75 da f3 c3 0f 1f 84 00 00 00 00 00 48 63 ff b8 e4 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 06 f3 c3 0f 1f 40 00 48 c7 c2 d4 ff ff ff f7 RSP: 002b:00007ffc58340f58 EFLAGS: 00000246 ORIG_RAX: 00000000000000e4 RAX: ffffffffffffffda RBX: 00000000000cb390 RCX: 000000000045f2ea RDX: 0000000000000000 RSI: 00007ffc58340f60 RDI: 0000000000000001 RBP: 0000000000000cba R08: 0000000000000001 R09: 0000000001a8e940 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001 R13: 00007ffc58340fc0 R14: 00000000000cb36f R15: 00007ffc58340fd0 Modules linked in: ---[ end trace 3cc16b50e737f1b7 ]--- RIP: 0010:__read_once_size include/linux/compiler.h:199 [inline] RIP: 0010:do_syscall_64+0x5f/0x1b0 arch/x86/entry/common.c:289 Code: 48 c7 c7 68 d4 0a 89 e8 4f 72 b0 00 48 83 3d ef 5b 0a 08 00 0f 84 58 01 00 00 fb 66 0f 1f 44 00 00 65 48 8b 1c 25 c0 1d 02 00 <48> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 RSP: 0018:ffffc90002a67f28 EFLAGS: 00010282 RAX: 1ffffffff1215a8d RBX: ffff888060846180 RCX: ffff888060846180 RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffff8880608469c4 RBP: 0000000000000000 R08: ffffffff817a3af0 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 00000000000000e4 R13: dffffc0000000000 R14: ffffc90002a67f58 R15: 0000000000000000 FS: 0000000001a8e940(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f75f09b6518 CR3: 0000000060ff2000 CR4: 00000000001406f0 DR0: 0000000020000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600