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| author | Jann Horn <jannh@google.com> | 2019-03-26 23:03:48 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2019-08-09 07:41:36 -0600 |
| commit | 52f6f9d74f31078964ca1574f7bb612da7877ac8 (patch) | |
| tree | 2ae8f69fd8cae1c07d786b5837721c74422ba164 /drivers/block/floppy.c | |
| parent | f0e6f41669d9e07f45b472e4de33d7c233a847bd (diff) | |
| download | linux-52f6f9d74f31078964ca1574f7bb612da7877ac8.tar.gz linux-52f6f9d74f31078964ca1574f7bb612da7877ac8.tar.bz2 linux-52f6f9d74f31078964ca1574f7bb612da7877ac8.zip | |
floppy: fix usercopy direction
As sparse points out, these two copy_from_user() should actually be
copy_to_user().
Fixes: 229b53c9bf4e ("take floppy compat ioctls to sodding floppy.c")
Cc: stable@vger.kernel.org
Acked-by: Alexander Popov <alex.popov@linux.com>
Reviewed-by: Mukesh Ojha <mojha@codeaurora.org>
Signed-off-by: Jann Horn <jannh@google.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/floppy.c')
| -rw-r--r-- | drivers/block/floppy.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 0469aceaa230..485865fd0412 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -3780,7 +3780,7 @@ static int compat_getdrvprm(int drive, v.native_format = UDP->native_format; mutex_unlock(&floppy_mutex); - if (copy_from_user(arg, &v, sizeof(struct compat_floppy_drive_params))) + if (copy_to_user(arg, &v, sizeof(struct compat_floppy_drive_params))) return -EFAULT; return 0; } @@ -3816,7 +3816,7 @@ static int compat_getdrvstat(int drive, bool poll, v.bufblocks = UDRS->bufblocks; mutex_unlock(&floppy_mutex); - if (copy_from_user(arg, &v, sizeof(struct compat_floppy_drive_struct))) + if (copy_to_user(arg, &v, sizeof(struct compat_floppy_drive_struct))) return -EFAULT; return 0; Eintr: |