[PATCH 5.15 033/179] staging: r8188eu: use GFP_ATOMIC under spinlock
From: Greg Kroah-Hartman
Date: Mon Nov 29 2021 - 17:35:00 EST
From: Michael Straube <straube.linux@xxxxxxxxx>
commit 4a293eaf92a510ff688dc7b3f0815221f99c9d1b upstream.
In function rtw_report_sec_ie() kzalloc() is called under a spinlock,
so the allocation have to be atomic.
Call tree:
-> rtw_select_and_join_from_scanned_queue() <- takes a spinlock
-> rtw_joinbss_cmd()
-> rtw_restruct_sec_ie()
-> rtw_report_sec_ie()
Fixes: 2b42bd58b321 ("staging: r8188eu: introduce new os_dep dir for RTL8188eu driver")
Cc: stable <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Michael Straube <straube.linux@xxxxxxxxx>
Link: https://lore.kernel.org/r/20211108105537.31655-1-straube.linux@xxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/staging/r8188eu/os_dep/mlme_linux.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/staging/r8188eu/os_dep/mlme_linux.c
+++ b/drivers/staging/r8188eu/os_dep/mlme_linux.c
@@ -114,7 +114,7 @@ void rtw_report_sec_ie(struct adapter *a
buff = NULL;
if (authmode == _WPA_IE_ID_) {
- buff = kzalloc(IW_CUSTOM_MAX, GFP_KERNEL);
+ buff = kzalloc(IW_CUSTOM_MAX, GFP_ATOMIC);
if (!buff)
return;
p = buff;