x86_64 Translation Block error (cmp eax, 0x6; jnle 0x524)

Host environment

• QEMU flavor: qemu-system-x86_64
• QEMU version: 6.1.50 (c52d69e7)

Emulated/Virtualized environment

• Architecture: x86

Description of problem

Qemu produces a Translation block of 4 instructions:

0x0000558a53039ffc: 83f806       (cmp eax, 0x6)
0x0000558a53039fff: 0f           (nothing)
0x0000558a53039ffc: 83f806       (cmp eax, 0x6)
0x0000558a53039fff: 0f8f1e050000 (jnle 0x524)

This problem occurs several time with different addresses but the same pattern:

• 1st and 3th instructions are the same (both addresses and opcodes);
• 2nd is the prefix of the 4th (same addresses).