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libsepol: avoid integer overflow in add_i_to_a()

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Signed-off-by: Christian Göttsche <cgzones@googlemail.com>
Acked-by: James Carter <jwcart2@gmail.com>
This commit is contained in:
Christian Göttsche 2023-12-11 15:48:25 +01:00 committed by James Carter
parent 22d3609b13
commit a55cd37461
1 changed files with 1 additions and 1 deletions
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2
libsepol/src/util.c
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@ -44,7 +44,7 @@ int add_i_to_a(uint32_t i, uint32_t * cnt, uint32_t ** a)
{
uint32_t *new;
if (cnt == NULL || a == NULL)
if (cnt == NULL || *cnt == UINT32_MAX || a == NULL)
return -1;
/* FIX ME: This is not very elegant! We use an array that we