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(parent: 2a973d4) | patch
s390/crash: fix incorrect number of bytes to copy to user space
authorAlexander Gordeev <agordeev@linux.ibm.com>
Fri, 15 Jul 2022 10:59:33 +0000 (12:59 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 17 Aug 2022 12:24:10 +0000 (14:24 +0200)
commit9165563b5e27443daf3b400f256b8273b54b1d49
tree0fbe544230f66f2a3fbb65998fdb5f4ad5cb14b2tree | snapshot
parent2a973d4389c707a903249c6bdc051caef6b1ea90commit | diff
s390/crash: fix incorrect number of bytes to copy to user space

[ Upstream commit 675228ddf44cd157e84657fdf0a10ed226ca7d24 ]

The number of bytes in a chunk is correctly calculated, but instead
the total number of bytes is passed to copy_to_user_real() function.

Reported-by: Matthew Wilcox <willy@infradead.org>
Fixes: 056ae38a45b2 ("s390/dump: streamline oldmem copy functions")
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
arch/s390/kernel/crash_dump.c diff | blob | history
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