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authorKlaus Jensen <k.jensen@samsung.com>2024-08-20 06:16:48 +0200
committerMichael Tokarev <mjt@tls.msk.ru>2024-08-28 08:37:29 +0300
commit4358fa333eafd588aca210cd5fa7b7effb0d7f0b (patch)
treecad8c0293874fc025609579e36c7ef83c1136563
parentf6f03df49f771a29ec6bd69fe098e8dbf5eebb03 (diff)
hw/nvme: fix leak of uninitialized memory in io_mgmt_recv
Yutaro Shimizu from the Cyber Defense Institute discovered a bug in the NVMe emulation that leaks contents of an uninitialized heap buffer if subsystem and FDP emulation are enabled. Cc: qemu-stable@nongnu.org Reported-by: Yutaro Shimizu <shimizu@cyberdefense.jp> Signed-off-by: Klaus Jensen <k.jensen@samsung.com> (cherry picked from commit 6a22121c4f25b181e99479f65958ecde65da1c92) Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
-rw-r--r--hw/nvme/ctrl.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c
index 652116085e..659332db0a 100644
--- a/hw/nvme/ctrl.c
+++ b/hw/nvme/ctrl.c
@@ -4302,7 +4302,7 @@ static uint16_t nvme_io_mgmt_recv_ruhs(NvmeCtrl *n, NvmeRequest *req,
nruhsd = ns->fdp.nphs * endgrp->fdp.nrg;
trans_len = sizeof(NvmeRuhStatus) + nruhsd * sizeof(NvmeRuhStatusDescr);
- buf = g_malloc(trans_len);
+ buf = g_malloc0(trans_len);
trans_len = MIN(trans_len, len);