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| author | Colin Ian King <colin.king@canonical.com> | 2020-08-12 04:35:53 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-12 20:58:01 +0300 |
| commit | 88b2e9b06381551b707d980627ad0591191f7a2d (patch) | |
| tree | bf3516545621b2c7faec249367949a8fc6a8ea94 /fs/ocfs2/uptodate.c | |
| parent | a1d0747a393a079631130d61faa2a61027d1c789 (diff) | |
| download | linux-88b2e9b06381551b707d980627ad0591191f7a2d.tar.xz | |
fs/ufs: avoid potential u32 multiplication overflow
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>
Diffstat (limited to 'fs/ocfs2/uptodate.c')
0 files changed, 0 insertions, 0 deletions