udf: Verify partition map count

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[ Upstream commit 1a11201668 ]

Verify that number of partition maps isn't insanely high which can lead
to large allocation in udf_sb_alloc_partition_maps(). All partition maps
have to fit in the LVD which is in a single block.

Reported-by: syzbot+478f2c1a6f0f447a46bb@syzkaller.appspotmail.com
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Jan Kara 2025-07-11 19:01:20 +02:00 • committed by Greg Kroah-Hartman

parent 9d5012ffe1

commit dc83df485f

1 changed files with 11 additions and 2 deletions

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fs/udf/super.c

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