Alexander Egorenkov 957e612720 zdump/dfi_vmcoreinfo: Fix illegal memory access in dfi_vmcoreinfo_init() ...

Before reading data in dfi_vmcoreinfo_init(), check the validity
of the memory range. Otherwise this can result in a segmentation fault when
zgetdump is given a very small dump, e.g. S390 DASD single-volume dump of
size 0x10 bytes.

Signed-off-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>

2021-10-01 14:53:14 +02:00

4.5 KiB

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