Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-24 05:02:12 +00:00
Code Issues Packages Projects Releases Wiki Activity

firmware: imx: misc: Align imx sc msg structs to 4

Browse Source 
The imx SC api strongly assumes that messages are composed out of
4-bytes words but some of our message structs have odd sizeofs.

This produces many oopses with CONFIG_KASAN=y:

    BUG: KASAN: stack-out-of-bounds in imx_mu_send_data+0x108/0x1f0

It shouldn't cause an issues in normal use because these structs are
always allocated on the stack.

Fixes: 15e1f2bc8b ("firmware: imx: add misc svc support")
Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
This commit is contained in:
Leonard Crestez 2020-02-20 18:29:34 +02:00 committed by Shawn Guo
parent 26d0fba29c
commit 1e6a4eba69
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/firmware/imx/misc.c
View File

@ -16,7 +16,7 @@ struct imx_sc_msg_req_misc_set_ctrl {
u32 ctrl;
u32 val;
u16 resource;
} __packed;
} __packed __aligned(4);
struct imx_sc_msg_req_cpu_start {
struct imx_sc_rpc_msg hdr;
@ -30,12 +30,12 @@ struct imx_sc_msg_req_misc_get_ctrl {
struct imx_sc_rpc_msg hdr;
u32 ctrl;
u16 resource;
} __packed;
} __packed __aligned(4);
struct imx_sc_msg_resp_misc_get_ctrl {
struct imx_sc_rpc_msg hdr;
u32 val;
} __packed;
} __packed __aligned(4);
/*
* This function sets a miscellaneous control value.