Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 1 UID: 0 PID: 6031 Comm: syz.4.44 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026 RIP: 0010:memcpy_sglist+0x420/0x730 crypto/scatterwalk.c:177 Code: e8 b5 b9 52 fd f6 c3 01 0f 85 0a 01 00 00 e8 c7 b4 52 fd 4c 89 f3 eb 07 e8 bd b4 52 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:ffffc9000c347638 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc9000d5c3000 RSI: 00000000000001e8 RDI: 00000000000001e9 RBP: dffffc0000000000 R08: e8059c3bce7ea168 R09: 0000c527311d8ef3 R10: 27311d8ef3e8059c R11: 0007000c000000c5 R12: 0000000000000004 R13: ffff888076b52840 R14: ffff888058482880 R15: 0000000000000008 FS: 0000000000000000(0000) GS:ffff888125557000(0063) knlGS:00000000f540db40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 0000000080001200 CR3: 000000007aa04000 CR4: 00000000003526f0 Call Trace: _aead_recvmsg crypto/algif_aead.c:186 [inline] aead_recvmsg+0x719/0x1030 crypto/algif_aead.c:240 sock_recvmsg_nosec+0x10c/0x140 net/socket.c:1078 ____sys_recvmsg+0x3e3/0x4a0 net/socket.c:2810 ___sys_recvmsg+0x215/0x590 net/socket.c:2854 do_recvmmsg+0x3a5/0x800 net/socket.c:2941 __sys_recvmmsg+0x1a5/0x290 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+0xbf/0xe0 net/compat.c:414 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline] __do_fast_syscall_32+0x20d/0x640 arch/x86/entry/syscall_32.c:307 do_fast_syscall_32+0x33/0x70 arch/x86/entry/syscall_32.c:332 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf701ef6c Code: 90 85 d2 74 0a 89 ce 81 e6 ff 0f 00 00 89 32 85 c0 74 05 c1 e9 0c 89 08 31 c0 5e 5d c3 90 0f 1f 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 58 b8 RSP: 002b:00000000f540d50c EFLAGS: 00000206 ORIG_RAX: 0000000000000151 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000080001200 RDX: 0000000000000002 RSI: 0000000000002023 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:memcpy_sglist+0x420/0x730 crypto/scatterwalk.c:177 Code: e8 b5 b9 52 fd f6 c3 01 0f 85 0a 01 00 00 e8 c7 b4 52 fd 4c 89 f3 eb 07 e8 bd b4 52 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:ffffc9000c347638 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc9000d5c3000 RSI: 00000000000001e8 RDI: 00000000000001e9 RBP: dffffc0000000000 R08: e8059c3bce7ea168 R09: 0000c527311d8ef3 R10: 27311d8ef3e8059c R11: 0007000c000000c5 R12: 0000000000000004 R13: ffff888076b52840 R14: ffff888058482880 R15: 0000000000000008 FS: 0000000000000000(0000) GS:ffff888125557000(0063) knlGS:00000000f540db40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000055aec7862a80 CR3: 000000007aa04000 CR4: 00000000003526f0 ---------------- Code disassembly (best guess): 0: e8 b5 b9 52 fd call 0xfd52b9ba 5: f6 c3 01 test $0x1,%bl 8: 0f 85 0a 01 00 00 jne 0x118 e: e8 c7 b4 52 fd call 0xfd52b4da 13: 4c 89 f3 mov %r14,%rbx 16: eb 07 jmp 0x1f 18: e8 bd b4 52 fd call 0xfd52b4da 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