Currently, there is no terminator entry for exynosautov920_cmu_of_match,
hence facing below KASAN warning,
==================================================================
BUG: KASAN: global-out-of-bounds in of_match_node+0x120/0x13c
Read of size 1 at addr ffffffe31cc9e628 by task swapper/0/1
CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.11.0+ #334
Hardware name: linux,dummy-virt (DT)
Call trace:
dump_backtrace+0x94/0xec
show_stack+0x18/0x24
dump_stack_lvl+0x90/0xd0
print_report+0x1f4/0x5b4
kasan_report+0xc8/0x110
__asan_report_load1_noabort+0x20/0x2c
of_match_node+0x120/0x13c
of_match_device+0x70/0xb4
platform_match+0xa0/0x25c
__device_attach_driver+0x7c/0x2d4
bus_for_each_drv+0x100/0x188
__device_attach+0x174/0x364
device_initial_probe+0x14/0x20
bus_probe_device+0x128/0x158
device_add+0xb3c/0x10fc
of_device_add+0xdc/0x150
of_platform_device_create_pdata+0x120/0x20c
of_platform_bus_create+0x2bc/0x620
of_platform_populate+0x58/0x108
of_platform_default_populate_init+0x100/0x120
do_one_initcall+0x110/0x788
kernel_init_freeable+0x44c/0x61c
kernel_init+0x24/0x1e4
ret_from_fork+0x10/0x20
The buggy address belongs to the variable:
exynosautov920_cmu_of_match+0xc8/0x2c80
The buggy address belongs to the virtual mapping at
[ffffffe31c7d0000, ffffffe31d700000) created by:
paging_init+0x424/0x60c
The buggy address belongs to the physical page:
page: refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x4349e
flags: 0x3fffe0000002000(reserved|node=0|zone=0|lastcpupid=0x1ffff)
raw: 03fffe0000002000 fffffffec00d2788 fffffffec00d2788 0000000000000000
raw: 0000000000000000 0000000000000000 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffffffe31cc9e500: f9 f9 f9 f9 00 00 03 f9 f9 f9 f9 f9 00 00 00 00
ffffffe31cc9e580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffffffe31cc9e600: 00 00 00 00 00 f9 f9 f9 f9 f9 f9 f9 04 f9 f9 f9
^
ffffffe31cc9e680: f9 f9 f9 f9 00 00 06 f9 f9 f9 f9 f9 00 00 06 f9
ffffffe31cc9e700: f9 f9 f9 f9 00 00 06 f9 f9 f9 f9 f9 00 00 06 f9
==================================================================
Add a dummy terminator entry at the end to assist
of_match_node() in traversing up to the terminator entry
without accessing an out-of-boundary index.
Fixes: 485e13fe2fb6 ("clk: samsung: add top clock support for ExynosAuto v920 SoC")
Signed-off-by: Jinjie Ruan <ruanjinjie@xxxxxxxxxx>
---
drivers/clk/samsung/clk-exynosautov920.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/clk/samsung/clk-exynosautov920.c b/drivers/clk/samsung/clk-exynosautov920.c
index 7ba9748c0526..a3634003b29b 100644
--- a/drivers/clk/samsung/clk-exynosautov920.c
+++ b/drivers/clk/samsung/clk-exynosautov920.c
@@ -1155,6 +1155,7 @@ static const struct of_device_id exynosautov920_cmu_of_match[] = {
.compatible = "samsung,exynosautov920-cmu-peric0",
.data = &peric0_cmu_info,
},
+ { },
};
static struct platform_driver exynosautov920_cmu_driver __refdata = {
--
2.34.1
