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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-30 03:35:47 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-30 03:35:47 +0000 |
| commit | 926b6f28303f165411f8dc876c265de64059e9a9 (patch) | |
| tree | fc75a8914b7694687b43740c15957e02f964364c /block/ioctl.c | |
| parent | Releasing progress-linux version 6.8.9-1~progress7.99u1. (diff) | |
| download | linux-926b6f28303f165411f8dc876c265de64059e9a9.tar.xz linux-926b6f28303f165411f8dc876c265de64059e9a9.zip | |
Merging upstream version 6.8.11.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'block/ioctl.c')
| -rw-r--r-- | block/ioctl.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/block/ioctl.c b/block/ioctl.c index 5f8c98823..7dbed0c11 100644 --- a/block/ioctl.c +++ b/block/ioctl.c @@ -89,7 +89,7 @@ static int blk_ioctl_discard(struct block_device *bdev, blk_mode_t mode, unsigned long arg) { uint64_t range[2]; - uint64_t start, len; + uint64_t start, len, end; struct inode *inode = bdev->bd_inode; int err; @@ -110,7 +110,8 @@ static int blk_ioctl_discard(struct block_device *bdev, blk_mode_t mode, if (len & 511) return -EINVAL; - if (start + len > bdev_nr_bytes(bdev)) + if (check_add_overflow(start, len, &end) || + end > bdev_nr_bytes(bdev)) return -EINVAL; filemap_invalidate_lock(inode->i_mapping); |