lo speed is unknown, defaulting to 1000 trusted_key: syz.1.4309 sent an empty control message without MSG_MORE. 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: 22561 Comm: syz.1.4309 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:memcpy_sglist+0x3eb/0x760 crypto/scatterwalk.c:177 Code: e8 0a e8 4d fd 4d 85 ff 48 8b 14 24 0f 85 09 02 00 00 48 89 14 24 e8 14 ed 4d fd 48 8b 14 24 48 8d 7a 08 48 89 f8 48 c1 e8 03 <0f> b6 04 18 84 c0 74 08 3c 03 0f 8e 22 03 00 00 48 8d 7a 0c 44 8b RSP: 0018:ffffc90002f2f820 EFLAGS: 00010202 RAX: 0000000000000001 RBX: dffffc0000000000 RCX: ffffc9000c4f2000 RDX: 0000000000000000 RSI: ffffffff84ba5bec RDI: 0000000000000008 RBP: ffff888074f600a0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000000 R12: ffff888023aab600 R13: 000000000000000b R14: 00000000000001f5 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff888097140000(0063) knlGS:00000000f5435b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000002f2e0000 CR3: 000000005f1fb000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 000000000000000e DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: _aead_recvmsg crypto/algif_aead.c:186 [inline] aead_recvmsg+0x60a/0x1180 crypto/algif_aead.c:240 sock_recvmsg_nosec net/socket.c:1078 [inline] ____sys_recvmsg+0x5b3/0x640 net/socket.c:2810 ___sys_recvmsg+0x16a/0x1a0 net/socket.c:2854 do_recvmmsg+0x563/0x760 net/socket.c:2941 __sys_recvmmsg+0x21f/0x270 net/socket.c:3023 __do_compat_sys_recvmmsg_time32 net/compat.c:418 [inline] __se_compat_sys_recvmmsg_time32 net/compat.c:414 [inline] __ia32_compat_sys_recvmmsg_time32+0xc4/0x160 net/compat.c:414 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline] __do_fast_syscall_32+0xe3/0x8c0 arch/x86/entry/syscall_32.c:307 do_fast_syscall_32+0x32/0x70 arch/x86/entry/syscall_32.c:332 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf7f92f6c Code: d2 74 05 c1 e8 0c 89 02 8b 5d fc 31 c0 c9 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 2e 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 58 b8 RSP: 002b:00000000f543550c EFLAGS: 00000292 ORIG_RAX: 0000000000000151 RAX: ffffffffffffffda RBX: 000000000000000a RCX: 0000000080001200 RDX: 0000000000000002 RSI: 0000000000000060 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000292 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:memcpy_sglist+0x3eb/0x760 crypto/scatterwalk.c:177 Code: e8 0a e8 4d fd 4d 85 ff 48 8b 14 24 0f 85 09 02 00 00 48 89 14 24 e8 14 ed 4d fd 48 8b 14 24 48 8d 7a 08 48 89 f8 48 c1 e8 03 <0f> b6 04 18 84 c0 74 08 3c 03 0f 8e 22 03 00 00 48 8d 7a 0c 44 8b RSP: 0018:ffffc90002f2f820 EFLAGS: 00010202 RAX: 0000000000000001 RBX: dffffc0000000000 RCX: ffffc9000c4f2000 RDX: 0000000000000000 RSI: ffffffff84ba5bec RDI: 0000000000000008 RBP: ffff888074f600a0 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000002 R11: 0000000000000000 R12: ffff888023aab600 R13: 000000000000000b R14: 00000000000001f5 R15: 0000000000000002 FS: 0000000000000000(0000) GS:ffff888097140000(0063) knlGS:00000000f5435b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000002f2e0000 CR3: 000000005f1fb000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 000000000000000e DR6: 00000000ffff0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: e8 0a e8 4d fd call 0xfd4de80f 5: 4d 85 ff test %r15,%r15 8: 48 8b 14 24 mov (%rsp),%rdx c: 0f 85 09 02 00 00 jne 0x21b 12: 48 89 14 24 mov %rdx,(%rsp) 16: e8 14 ed 4d fd call 0xfd4ded2f 1b: 48 8b 14 24 mov (%rsp),%rdx 1f: 48 8d 7a 08 lea 0x8(%rdx),%rdi 23: 48 89 f8 mov %rdi,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 0f b6 04 18 movzbl (%rax,%rbx,1),%eax <-- trapping instruction 2e: 84 c0 test %al,%al 30: 74 08 je 0x3a 32: 3c 03 cmp $0x3,%al 34: 0f 8e 22 03 00 00 jle 0x35c 3a: 48 8d 7a 0c lea 0xc(%rdx),%rdi 3e: 44 rex.R 3f: 8b .byte 0x8b