* [PATCH AUTOSEL 5.4 11/14] cifs: fix the out of range assignment to bit fields in parse_server_interfaces
[not found] <20210723035813.531837-1-sashal@kernel.org>
@ 2021-07-23 3:58 ` Sasha Levin
0 siblings, 0 replies; only message in thread
From: Sasha Levin @ 2021-07-23 3:58 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Hyunchul Lee, Steve French, Sasha Levin, linux-cifs, samba-technical
From: Hyunchul Lee <hyc.lee@gmail.com>
[ Upstream commit c9c9c6815f9004ee1ec87401ed0796853bd70f1b ]
Because the out of range assignment to bit fields
are compiler-dependant, the fields could have wrong
value.
Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/cifs/smb2ops.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index bf6b4f71dc58..defee1d208d2 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -498,8 +498,8 @@ parse_server_interfaces(struct network_interface_info_ioctl_rsp *buf,
p = buf;
while (bytes_left >= sizeof(*p)) {
info->speed = le64_to_cpu(p->LinkSpeed);
- info->rdma_capable = le32_to_cpu(p->Capability & RDMA_CAPABLE);
- info->rss_capable = le32_to_cpu(p->Capability & RSS_CAPABLE);
+ info->rdma_capable = le32_to_cpu(p->Capability & RDMA_CAPABLE) ? 1 : 0;
+ info->rss_capable = le32_to_cpu(p->Capability & RSS_CAPABLE) ? 1 : 0;
cifs_dbg(FYI, "%s: adding iface %zu\n", __func__, *iface_count);
cifs_dbg(FYI, "%s: speed %zu bps\n", __func__, info->speed);
--
2.30.2
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2021-07-23 3:58 ` [PATCH AUTOSEL 5.4 11/14] cifs: fix the out of range assignment to bit fields in parse_server_interfaces Sasha Levin
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