RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 00007fa193102ca0 R08: 00080000fffffffc R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000003 R13: 00007fff6ffad10f R14: 00007fa1931039c0 R15: 000000000119bf8c 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: 0 PID: 25536 Comm: syz-executor.3 Not tainted 4.14.217-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff888055fd4540 task.stack: ffff88809df58000 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:ffff88809df5f760 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 000000000000001e RCX: ffffc900082dd000 RDX: 0000000000000002 RSI: ffffffff83155024 RDI: ffff88805278d158 RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed100b5ad003 R10: ffff88805ad6801d R11: 0000000000000010 R12: 000000000000001e R13: ffff88809df5f818 R14: 0000000000000001 R15: ffff88805278d164 FS: 00007f9439ae4700(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055f8e17be160 CR3: 000000004ef4c000 CR4: 00000000001406f0 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: ffff88809df5f760 RIP: scatterwalk_pagedone include/crypto/scatterwalk.h:111 [inline] RSP: ffff88809df5f760 RIP: scatterwalk_copychunks+0x4a3/0x680 crypto/scatterwalk.c:55 RSP: ffff88809df5f760 FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 CPU: 1 PID: 25585 Comm: syz-executor.0 Tainted: G D 4.14.217-syzkaller #0 ---[ end trace 4ab4cee0d2777258 ]--- Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 fail_dump lib/fault-inject.c:51 [inline] should_fail.cold+0x10a/0x149 lib/fault-inject.c:149