kernel: kexec_file: fix error return code of kexec_calculate_store_digests()

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[ Upstream commit 31d82c2c78 ]

When vzalloc() returns NULL to sha_regions, no error return code of
kexec_calculate_store_digests() is assigned.  To fix this bug, ret is
assigned with -ENOMEM in this case.

Link: https://lkml.kernel.org/r/20210309083904.24321-1-baijiaju1990@gmail.com
Fixes: a43cac0d9d ("kexec: split kexec_file syscall code to kexec_file.c")
Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com>
Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Acked-by: Baoquan He <bhe@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Jia-Ju Bai 2021-05-06 18:04:38 -07:00 • committed by Greg Kroah-Hartman

parent d43be02fc4

commit 0886bb143c

1 changed files with 3 additions and 1 deletions

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kernel/kexec_file.c

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