static int set_reg_profile(RAnal *anal) {
	const char *p =
		"=PC	pcl\n"
		"=SP	sp\n"
		"=A0	r25\n"
		"=A1	r24\n"
		"=A2	r23\n"
		"=A3	r22\n"
		"=R0	r24\n"
#if 0
PC: 16- or 22-bit program counter
SP: 8- or 16-bit stack pointer
SREG: 8-bit status register
RAMPX, RAMPY, RAMPZ, RAMPD and EIND:
#endif
		"gpr	r0	.8	0	0\n"
		"gpr	r1	.8	1	0\n"
		"gpr	r2	.8	2	0\n"
		"gpr	r3	.8	3	0\n"
		"gpr	r4	.8	4	0\n"
		"gpr	r5	.8	5	0\n"
		"gpr	r6	.8	6	0\n"
		"gpr	r7	.8	7	0\n"
		"gpr	text	.64	0	0\n"
		"gpr	r8	.8	8	0\n"
		"gpr	r9	.8	9	0\n"
		"gpr	r10	.8	10	0\n"
		"gpr	r11	.8	11	0\n"
		"gpr	r12	.8	12	0\n"
		"gpr	r13	.8	13	0\n"
		"gpr	r14	.8	14	0\n"
		"gpr	r15	.8	15	0\n"
		"gpr	deskey	.64	8	0\n"
		"gpr	r16	.8	16	0\n"
		"gpr	r17	.8	17	0\n"
		"gpr	r18	.8	18	0\n"
		"gpr	r19	.8	19	0\n"
		"gpr	r20	.8	20	0\n"
		"gpr	r21	.8	21	0\n"
		"gpr	r22	.8	22	0\n"
		"gpr	r23	.8	23	0\n"
		"gpr	r24	.8	24	0\n"
		"gpr	r25	.8	25	0\n"
		"gpr	r26	.8	26	0\n"
		"gpr	r27	.8	27	0\n"
		"gpr	r28	.8	28	0\n"
		"gpr	r29	.8	29	0\n"
		"gpr	r30	.8	30	0\n"
		"gpr	r31	.8	31	0\n"

		"gpr	r17:r16	.16	16	0\n"
		"gpr	r19:r18	.16	18	0\n"
		"gpr	r21:r20	.16	20	0\n"
		"gpr	r23:r22	.16	22	0\n"
		"gpr	r25:r24	.16	24	0\n"
		"gpr	r27:r26	.16	26	0\n"
		"gpr	r29:r28	.16	28	0\n"
		"gpr	r31:r30	.16	30	0\n"

		"gpr	x	.16	26	0\n"
		"gpr	y	.16	28	0\n"
		"gpr	z	.16	30	0\n"
		"gpr	pc	.32	32	0\n"
		"gpr	pcl	.16	32	0\n"
		"gpr	pch	.16	34	0\n"
		"gpr	sp	.16	36	0\n"
		"gpr	spl	.8	36	0\n"
		"gpr	sph	.8	37	0\n"
		"gpr	sreg	.8	38	0\n"
		"gpr	cf	.1	38.0	0\n" // Carry. This is a borrow flag on subtracts.
		"gpr	zf	.1	38.1	0\n" // Zero. Set to 1 when an arithmetic result is zero.
		"gpr	nf	.1	38.2	0\n" // Negative. Set to a copy of the most significant bit of an arithmetic result.
		"gpr	vf	.1	38.3	0\n" // Overflow flag. Set in case of two's complement overflow.
		"gpr	sf	.1	38.4	0\n" // Sign flag. Unique to AVR, this is always (N ^ V) (xor), and shows the true sign of a comparison.
		"gpr	hf	.1	38.5	0\n" // Half carry. This is an internal carry from additions and is used to support BCD arithmetic.
		"gpr	tf	.1	38.6	0\n" // Bit copy. Special bit load and bit store instructions use this bit.
		"gpr	if	.1	38.7	0\n" // Interrupt flag. Set when interrupts are enabled.
		"gpr	rampx	.8	39	0\n"
		"gpr	rampy	.8	40	0\n"
		"gpr	rampz	.8	41	0\n"
		"gpr	rampd	.8	42	0\n"
		"gpr	eind	.8	43	0\n"
		"gpr	_prog	.32	44	0\n"
		"gpr    _page   .32     48	0\n"
		"gpr	_eeprom	.32	52	0\n"
		"gpr	_ram	.32	56	0\n"
		"gpr	_io	.32	56	0\n"
		"gpr	_sram	.32	60	0\n"
		"gpr    spmcsr  .8      64      0\n"
		;

	return r_reg_set_profile_string (anal->reg, p);
}

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory belongs to the code that operates on the new pointer.