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| author | Colin Ian King <colin.king@canonical.com> | 2020-08-11 18:35:53 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-21 13:15:18 +0200 |
| commit | f47254f20a4bf7340fb897ef6728bff4e181068f (patch) | |
| tree | bad43774b11327c3e3728be66d010c6356ce78d7 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 86593fd4e57f6b9fb91456194d8938c3a61ec758 (diff) | |
fs/ufs: avoid potential u32 multiplication overflow
[ Upstream commit 88b2e9b06381551b707d980627ad0591191f7a2d ]
The 64 bit ino is being compared to the product of two u32 values,
however, the multiplication is being performed using a 32 bit multiply so
there is a potential of an overflow. To be fully safe, cast uspi->s_ncg
to a u64 to ensure a 64 bit multiplication occurs to avoid any chance of
overflow.
Fixes: f3e2a520f5fb ("ufs: NFS support")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Evgeniy Dushistov <dushistov@mail.ru>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Link: http://lkml.kernel.org/r/20200715170355.1081713-1-colin.king@canonical.com
Addresses-Coverity: ("Unintentional integer overflow")
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions