kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 1 PID: 1295 Comm: syz-executor.1 Not tainted 4.14.224-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff8880956e21c0 task.stack: ffff8880a1b28000 RIP: 0010:scatterwalk_start include/crypto/scatterwalk.h:86 [inline] RIP: 0010:scatterwalk_pagedone include/crypto/scatterwalk.h:111 [inline] RIP: 0010:scatterwalk_copychunks+0x4a3/0x680 crypto/scatterwalk.c:55 RSP: 0018:ffff8880a1b2f760 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 000000000000001e RCX: ffffc900064de000 RDX: 0000000000000002 RSI: ffffffff83156f74 RDI: ffff888056f07558 RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed101547a003 R10: ffff8880aa3d001d R11: 0000000000000010 R12: 000000000000001e R13: ffff8880a1b2f818 R14: 0000000000000001 R15: ffff888056f07564 FS: 00007f40d32e1700(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000970004 CR3: 0000000059be0000 CR4: 00000000001426e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: scatterwalk_map_and_copy crypto/scatterwalk.c:72 [inline] scatterwalk_map_and_copy+0x100/0x1a0 crypto/scatterwalk.c:60 gcmaes_encrypt.constprop.0+0x6cd/0xc00 arch/x86/crypto/aesni-intel_glue.c:802 Code: fc ff df 80 3c 02 00 0f 85 d9 01 00 00 48 8d 45 10 49 89 6d 00 48 89 c2 48 89 44 24 18 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 81 01 00 00 48 b8 00 00 00 RIP: scatterwalk_start include/crypto/scatterwalk.h:86 [inline] RSP: ffff8880a1b2f760 RIP: scatterwalk_pagedone include/crypto/scatterwalk.h:111 [inline] RSP: ffff8880a1b2f760 RIP: scatterwalk_copychunks+0x4a3/0x680 crypto/scatterwalk.c:55 RSP: ffff8880a1b2f760 ---[ end trace 1285d3fbd485c8b5 ]---