Kunwu Chan f6781add1c powerpc/mm: Fix null-pointer dereference in pgtable_cache_add
[ Upstream commit f46c8a75263f97bda13c739ba1c90aced0d3b071 ]

kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure. Ensure the allocation was successful
by checking the pointer validity.

Suggested-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231204023223.2447523-1-chentao@kylinos.cn
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-02-23 08:24:53 +01:00
..
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2023-09-23 10:59:38 +02:00
2023-11-20 10:30:13 +01:00
2023-09-23 10:59:53 +02:00
2023-08-08 19:56:33 +02:00