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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-07-24 16:21:27 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-07-24 16:21:27 +0200
commit8f9aa2c90530ab92301a82231ae44f3722becd93 (patch)
treefb282e955b0a880b07131a135257fe3ec764e928 /drivers/dibs/dibs_loopback.c
parent93467b31bec6da512b51544e5e4584f2745e995e (diff)
parent155b42bec9cbb6b8cdc47dd9bd09503a81fbe493 (diff)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/dibs/dibs_loopback.c')
-rw-r--r--drivers/dibs/dibs_loopback.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/dibs/dibs_loopback.c b/drivers/dibs/dibs_loopback.c
index ec3b48cb0e87..0f2e09311152 100644
--- a/drivers/dibs/dibs_loopback.c
+++ b/drivers/dibs/dibs_loopback.c
@@ -254,6 +254,11 @@ static int dibs_lo_move_data(struct dibs_dev *dibs, u64 dmb_tok,
read_unlock_bh(&ldev->dmb_ht_lock);
return -EINVAL;
}
+ if ((u64)offset + size > rmb_node->len) {
+ read_unlock_bh(&ldev->dmb_ht_lock);
+ return -EINVAL;
+ }
+
memcpy((char *)rmb_node->cpu_addr + offset, data, size);
sba_idx = rmb_node->sba_idx;
read_unlock_bh(&ldev->dmb_ht_lock);