linux

iv/linux

History

Heiko Carstens 794fa52b94 s390/mm: Add NULL pointer check to crst_table_free() base_crst_free()

commit b5efb63acf7bddaf20eacfcac654c25c446eabe8 upstream.

crst_table_free() used to work with NULL pointers before the conversion
to ptdescs.  Since crst_table_free() can be called with a NULL pointer
(error handling in crst_table_upgrade() add an explicit check.

Also add the same check to base_crst_free() for consistency reasons.

In real life this should not happen, since order two GFP_KERNEL
allocations will not fail, unless FAIL_PAGE_ALLOC is enabled and used.

Reported-by: Yunseong Kim <yskelg@gmail.com>
Fixes: 6326c26c1514 ("s390: convert various pgalloc functions to use ptdescs")
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Acked-by: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2024-07-18 13:21:20 +02:00

appldata

sysctl: Add size to register_sysctl

2023-08-15 15:26:17 -07:00

boot

s390/boot: Remove alt_stfle_fac_list from decompressor

2024-06-12 11:12:33 +02:00

configs

cred: get rid of CONFIG_DEBUG_CREDENTIALS

2023-12-20 17:01:51 +01:00

crypto

crypto: s390/aes - Fix buffer overread in CTR mode