diff options
| author | Mark Brown <broonie@kernel.org> | 2015-01-16 22:06:35 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2015-01-16 22:06:35 +0000 |
| commit | c293f79246d7cdaf6e75b40aa1f957eb8d195835 (patch) | |
| tree | 2559c41e0baa8e0f160ce033e1b4c245d0ce0dcf /block | |
| parent | 2156eda2aafa0b0f660656246a11d7c2a9947ff9 (diff) | |
| parent | 5054319d9fe56ed1ef6c83c00ae37fdc2b277a79 (diff) | |
Merge tag 'v3.10.65' into linux-linaro-lsk
This is the 3.10.65 stable release
Diffstat (limited to 'block')
| -rw-r--r-- | block/genhd.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/block/genhd.c b/block/genhd.c index 4700248b32e9..ea49f8631c22 100644 --- a/block/genhd.c +++ b/block/genhd.c @@ -1070,9 +1070,16 @@ int disk_expand_part_tbl(struct gendisk *disk, int partno) struct disk_part_tbl *old_ptbl = disk->part_tbl; struct disk_part_tbl *new_ptbl; int len = old_ptbl ? old_ptbl->len : 0; - int target = partno + 1; + int i, target; size_t size; - int i; + + /* + * check for int overflow, since we can get here from blkpg_ioctl() + * with a user passed 'partno'. + */ + target = partno + 1; + if (target < 0) + return -EINVAL; /* disk_max_parts() is zero during initialization, ignore if so */ if (disk_max_parts(disk) && target > disk_max_parts(disk)) |