Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 UID: 0 PID: 5319 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:memcpy_sglist+0x420/0x730 crypto/scatterwalk.c:177 Code: e8 b5 2a 51 fd f6 c3 01 0f 85 0a 01 00 00 e8 c7 25 51 fd 4c 89 f3 eb 07 e8 bd 25 51 fd 31 db 4c 8d 7b 08 4c 89 f8 48 c1 e8 03 <0f> b6 04 28 84 c0 0f 85 1d 02 00 00 41 8b 07 89 44 24 04 49 8d 7d RSP: 0018:ffffc9000ef7f6d8 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000100000 RDX: ffffc9000f681000 RSI: 000000000000068e RDI: 000000000000068f RBP: dffffc0000000000 R08: ffff888050ac7080 R09: 1ffff1100a158e10 R10: dffffc0000000000 R11: ffffed100a158e11 R12: 0000000000000007 R13: ffff888038527180 R14: ffff88801f0c8020 R15: 0000000000000008 FS: 00007f55b4b7f6c0(0000) GS:ffff88808ca4c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f55b0194000 CR3: 0000000038a50000 CR4: 0000000000352ef0 Call Trace: _aead_recvmsg crypto/algif_aead.c:186 [inline] aead_recvmsg+0x719/0x1030 crypto/algif_aead.c:240 sock_recvmsg_nosec net/socket.c:1078 [inline] sock_recvmsg+0x172/0x1b0 net/socket.c:1100 sock_read_iter+0x251/0x320 net/socket.c:1170 aio_read+0x33a/0x4d0 fs/aio.c:1602 __io_submit_one fs/aio.c:-1 [inline] io_submit_one+0x79d/0x14c0 fs/aio.c:2052 __do_sys_io_submit fs/aio.c:2111 [inline] __se_sys_io_submit+0x195/0x340 fs/aio.c:2081 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f55b3d9c819 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f55b4b7efe8 EFLAGS: 00000246 ORIG_RAX: 00000000000000d1 RAX: ffffffffffffffda RBX: 00007f55b4015fa0 RCX: 00007f55b3d9c819 RDX: 0000200000000580 RSI: 0000000000000001 RDI: 00007f55b0194000 RBP: 00007f55b3e32c91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f55b4016038 R14: 00007f55b4015fa0 R15: 00007ffd2c24eb58 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:memcpy_sglist+0x420/0x730 crypto/scatterwalk.c:177 Code: e8 b5 2a 51 fd f6 c3 01 0f 85 0a 01 00 00 e8 c7 25 51 fd 4c 89 f3 eb 07 e8 bd 25 51 fd 31 db 4c 8d 7b 08 4c 89 f8 48 c1 e8 03 <0f> b6 04 28 84 c0 0f 85 1d 02 00 00 41 8b 07 89 44 24 04 49 8d 7d RSP: 0018:ffffc9000ef7f6d8 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000100000 RDX: ffffc9000f681000 RSI: 000000000000068e RDI: 000000000000068f RBP: dffffc0000000000 R08: ffff888050ac7080 R09: 1ffff1100a158e10 R10: dffffc0000000000 R11: ffffed100a158e11 R12: 0000000000000007 R13: ffff888038527180 R14: ffff88801f0c8020 R15: 0000000000000008 FS: 00007f55b4b7f6c0(0000) GS:ffff88808ca4c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f55b3fed6b8 CR3: 0000000038a50000 CR4: 0000000000352ef0 ---------------- Code disassembly (best guess): 0: e8 b5 2a 51 fd call 0xfd512aba 5: f6 c3 01 test $0x1,%bl 8: 0f 85 0a 01 00 00 jne 0x118 e: e8 c7 25 51 fd call 0xfd5125da 13: 4c 89 f3 mov %r14,%rbx 16: eb 07 jmp 0x1f 18: e8 bd 25 51 fd call 0xfd5125da 1d: 31 db xor %ebx,%ebx 1f: 4c 8d 7b 08 lea 0x8(%rbx),%r15 23: 4c 89 f8 mov %r15,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 0f b6 04 28 movzbl (%rax,%rbp,1),%eax <-- trapping instruction 2e: 84 c0 test %al,%al 30: 0f 85 1d 02 00 00 jne 0x253 36: 41 8b 07 mov (%r15),%eax 39: 89 44 24 04 mov %eax,0x4(%rsp) 3d: 49 rex.WB 3e: 8d .byte 0x8d 3f: 7d .byte 0x7d