s390/extmem: Replace sprintf() with snprintf() for buffer safety

Browse source

Replace unsafe sprintf() calls with snprintf() in segment_save() to
prevent potential buffer overflows. The function builds command strings
by repeatedly appending to a fixed-size buffer, which could overflow if
segment ranges are numerous or values are large.

Signed-off-by: Josephine Pfeiffer <hi@josie.lol>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>

...

This commit is contained in:

Josephine Pfeiffer 2025-10-01 21:14:04 +02:00 • committed by Heiko Carstens

parent dd7d1d34ae

commit 5379879a76

1 changed files with 8 additions and 6 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

14

arch/s390/mm/extmem.c

View file