thrieg/ft_malloc
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fixed segfault in free (reading header type after munmap of the zone)

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thrieg 2025-12-13 06:54:57 +01:00
parent 0384df02e9
commit 6bc3783b67
1 changed files with 6 additions and 4 deletions
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10
srcs/ft_free.c
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@ -3,10 +3,10 @@
/* ::: :::::::: */ /* ::: :::::::: */
/* ft_free.c :+: :+: :+: */ /* ft_free.c :+: :+: :+: */
/* +:+ +:+ +:+ */ /* +:+ +:+ +:+ */
/* By: thrieg < thrieg@student.42mulhouse.fr> +#+ +:+ +#+ */ /* By: thrieg <thrieg@student.42mulhouse.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */ /* +#+#+#+#+#+ +#+ */
/* Created: 2025/11/19 15:44:05 by thrieg #+# #+# */ /* Created: 2025/11/19 15:44:05 by thrieg #+# #+# */
/* Updated: 2025/12/08 15:57:17 by thrieg ### ########.fr */ /* Updated: 2025/12/13 06:52:01 by thrieg ### ########.fr */
/* */ /* */
/* ************************************************************************** */ /* ************************************************************************** */
@ -92,12 +92,14 @@ void free(void *ptr)
else if (header->zone->type == E_SMALL) else if (header->zone->type == E_SMALL)
{ {
header->occupied = false; header->occupied = false;
defrag_zone(header->zone); if (defrag_zone(header->zone))
return; //zone munmaped, avoid all other logic on this memory
} }
else if (header->zone->type == E_TINY) else if (header->zone->type == E_TINY)
{ {
header->occupied = false; header->occupied = false;
defrag_zone(header->zone); if (defrag_zone(header->zone))
return; //zone munmaped, avoid all other logic on this memory
} }
else else
{ {