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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-02-04 06:21:02 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2024-02-04 06:21:02 -0800
commita802f50d6e92298d44a806d326a2ba3eefa6db72 (patch)
tree40cafff98f5248d0121656fc538e65dc9baa64b2 /drivers/md/dm-ioctl.c
parentfccc9d9233f918ee50cf2955ae7134a7f3418351 (diff)
parent54be6c6c5ae8e0d93a6c4641cb7528eb0b6ba478 (diff)
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Merge 6.8-rc3 into tty-next
We need the tty/serial fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/md/dm-ioctl.c')
-rw-r--r--drivers/md/dm-ioctl.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index e65058e0ed06..3b1ad7127cb8 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -1941,7 +1941,8 @@ static int copy_params(struct dm_ioctl __user *user, struct dm_ioctl *param_kern
minimum_data_size - sizeof(param_kernel->version)))
return -EFAULT;
- if (param_kernel->data_size < minimum_data_size) {
+ if (unlikely(param_kernel->data_size < minimum_data_size) ||
+ unlikely(param_kernel->data_size > DM_MAX_TARGETS * DM_MAX_TARGET_PARAMS)) {
DMERR("Invalid data size in the ioctl structure: %u",
param_kernel->data_size);
return -EINVAL;