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author | Michał Kępień <kernel@kempniu.pl> | 2022-06-29 14:57:35 +0200 |
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committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2022-09-21 10:38:07 +0200 |
commit | 745df17906029cc683b8b5ac8bcb08f82860baff (patch) | |
tree | 7880199cc6c84d6715d0b6979fe7bdf5cc8cc576 /drivers/mtd/mtdblock.c | |
parent | mtd: track maximum number of bitflips for each read request (diff) | |
download | linux-745df17906029cc683b8b5ac8bcb08f82860baff.tar.xz linux-745df17906029cc683b8b5ac8bcb08f82860baff.zip |
mtd: always initialize 'stats' in struct mtd_oob_ops
As the 'stats' field in struct mtd_oob_ops is used in conditional
expressions, ensure it is always zero-initialized in all such structures
to prevent random stack garbage from being interpreted as a pointer.
Strictly speaking, this problem currently only needs to be fixed for
struct mtd_oob_ops structures subsequently passed to mtd_read_oob().
However, this commit goes a step further and makes all instances of
struct mtd_oob_ops in the tree zero-initialized, in hope of preventing
future problems, e.g. if struct mtd_req_stats gets extended with write
statistics at some point.
Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220629125737.14418-3-kernel@kempniu.pl
Diffstat (limited to 'drivers/mtd/mtdblock.c')
0 files changed, 0 insertions, 0 deletions