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(parent: 21d0a5c) | patch
exfat: fix overflow issue in exfat_cluster_to_sector()
authorNamjae Jeon <namjae.jeon@samsung.com>
Fri, 3 Jul 2020 02:16:32 +0000 (11:16 +0900)
committerNamjae Jeon <namjae.jeon@samsung.com>
Tue, 21 Jul 2020 01:44:06 +0000 (10:44 +0900)
commite8166955d67e691f300dfb5ccd2e85c1285ff3bd
tree70aa76f22938b1d00033ed174e7ea6af7d7aa043tree | snapshot
parent21d0a5cf950768933cb88e716f8a3bf1031bcec4commit | diff
exfat: fix overflow issue in exfat_cluster_to_sector()

An overflow issue can occur while calculating sector in
exfat_cluster_to_sector(). It needs to cast clus's type to sector_t
before left shifting.

Fixes: e2bb47f710df ("exfat: add in-memory and on-disk structures and headers")
Cc: stable@vger.kernel.org # v5.7
Reviewed-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
fs/exfat/exfat_fs.h diff | blob | history
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