diff options
| author | Michał Kępień <kernel@kempniu.pl> | 2022-06-29 14:57:35 +0200 |
|---|---|---|
| committer | Miquel Raynal <miquel.raynal@bootlin.com> | 2022-09-21 10:38:07 +0200 |
| commit | 745df17906029cc683b8b5ac8bcb08f82860baff (patch) | |
| tree | 7880199cc6c84d6715d0b6979fe7bdf5cc8cc576 /drivers/mtd/ssfdc.c | |
| parent | 65394169bdae073bfb2c6816f5bf095bd7d53e61 (diff) | |
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/ssfdc.c')
| -rw-r--r-- | drivers/mtd/ssfdc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mtd/ssfdc.c b/drivers/mtd/ssfdc.c index 1d05c121904c..04da685c36be 100644 --- a/drivers/mtd/ssfdc.c +++ b/drivers/mtd/ssfdc.c @@ -163,7 +163,7 @@ static int read_physical_sector(struct mtd_info *mtd, uint8_t *sect_buf, /* Read redundancy area (wrapper to MTD_READ_OOB */ static int read_raw_oob(struct mtd_info *mtd, loff_t offs, uint8_t *buf) { - struct mtd_oob_ops ops; + struct mtd_oob_ops ops = { }; int ret; ops.mode = MTD_OPS_RAW; |