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author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-06-13 04:28:00 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-06-13 04:28:00 +0300 |
commit | b08fc5277aaa1d8ea15470d38bf36f19dfb0e125 (patch) | |
tree | 1910dc474cb1ede95581dd9faa81a3bebeded0dc /drivers/md/raid1.c | |
parent | 4597fcff07044d89c646d0c5d8b42cd976d966a1 (diff) | |
parent | 9d2a789c1db75d0f55b14fa57bec548d94332ad8 (diff) | |
download | linux-b08fc5277aaa1d8ea15470d38bf36f19dfb0e125.tar.xz |
Merge tag 'overflow-v4.18-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull more overflow updates from Kees Cook:
"The rest of the overflow changes for v4.18-rc1.
This includes the explicit overflow fixes from Silvio, further
struct_size() conversions from Matthew, and a bug fix from Dan.
But the bulk of it is the treewide conversions to use either the
2-factor argument allocators (e.g. kmalloc(a * b, ...) into
kmalloc_array(a, b, ...) or the array_size() macros (e.g. vmalloc(a *
b) into vmalloc(array_size(a, b)).
Coccinelle was fighting me on several fronts, so I've done a bunch of
manual whitespace updates in the patches as well.
Summary:
- Error path bug fix for overflow tests (Dan)
- Additional struct_size() conversions (Matthew, Kees)
- Explicitly reported overflow fixes (Silvio, Kees)
- Add missing kvcalloc() function (Kees)
- Treewide conversions of allocators to use either 2-factor argument
variant when available, or array_size() and array3_size() as needed
(Kees)"
* tag 'overflow-v4.18-rc1-part2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (26 commits)
treewide: Use array_size in f2fs_kvzalloc()
treewide: Use array_size() in f2fs_kzalloc()
treewide: Use array_size() in f2fs_kmalloc()
treewide: Use array_size() in sock_kmalloc()
treewide: Use array_size() in kvzalloc_node()
treewide: Use array_size() in vzalloc_node()
treewide: Use array_size() in vzalloc()
treewide: Use array_size() in vmalloc()
treewide: devm_kzalloc() -> devm_kcalloc()
treewide: devm_kmalloc() -> devm_kmalloc_array()
treewide: kvzalloc() -> kvcalloc()
treewide: kvmalloc() -> kvmalloc_array()
treewide: kzalloc_node() -> kcalloc_node()
treewide: kzalloc() -> kcalloc()
treewide: kmalloc() -> kmalloc_array()
mm: Introduce kvcalloc()
video: uvesafb: Fix integer overflow in allocation
UBIFS: Fix potential integer overflow in allocation
leds: Use struct_size() in allocation
Convert intel uncore to struct_size
...
Diffstat (limited to 'drivers/md/raid1.c')
-rw-r--r-- | drivers/md/raid1.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 0b344d087581..8e05c1092aef 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -126,8 +126,8 @@ static void * r1buf_pool_alloc(gfp_t gfp_flags, void *data) if (!r1_bio) return NULL; - rps = kmalloc(sizeof(struct resync_pages) * pi->raid_disks, - gfp_flags); + rps = kmalloc_array(pi->raid_disks, sizeof(struct resync_pages), + gfp_flags); if (!rps) goto out_free_r1bio; @@ -2936,9 +2936,9 @@ static struct r1conf *setup_conf(struct mddev *mddev) if (!conf->barrier) goto abort; - conf->mirrors = kzalloc(sizeof(struct raid1_info) - * mddev->raid_disks * 2, - GFP_KERNEL); + conf->mirrors = kzalloc(array3_size(sizeof(struct raid1_info), + mddev->raid_disks, 2), + GFP_KERNEL); if (!conf->mirrors) goto abort; @@ -3241,7 +3241,8 @@ static int raid1_reshape(struct mddev *mddev) kfree(newpoolinfo); return ret; } - newmirrors = kzalloc(sizeof(struct raid1_info) * raid_disks * 2, + newmirrors = kzalloc(array3_size(sizeof(struct raid1_info), + raid_disks, 2), GFP_KERNEL); if (!newmirrors) { kfree(newpoolinfo); |