| commit | 2bf9806d4228f7a6195f8e03eda0479d2a93b411 | |
| author | Jia-Ju Bai <baijiaju1990@163.com> | |
| Sun, 8 Oct 2017 11:54:45 +0000 (8 19:54 +0800) | ||
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | |
| Wed, 18 Oct 2017 13:43:35 +0000 (18 15:43 +0200) | ||
| tree | f17a11f3fd660af30d286490be18c4baebbb1e2e | treesnapshot (tar.gz zip) |
| parent | 08880f8e08cbd814e870e9d3ab9530abc1bce226 | commitdiff |
rtl8188eu: Fix a possible sleep-in-atomic bug in rtw_createbss_cmd
The driver may sleep under a spinlock, and the function call path is:
rtw_surveydone_event_callback(acquire the spinlock)
rtw_createbss_cmd
kzalloc(GFP_KERNEL) --> may sleep
To fix it, GFP_KERNEL is replaced with GFP_ATOMIC.
This bug is found by my static analysis tool and my code review.
Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The driver may sleep under a spinlock, and the function call path is:
rtw_surveydone_event_callback(acquire the spinlock)
rtw_createbss_cmd
kzalloc(GFP_KERNEL) --> may sleep
To fix it, GFP_KERNEL is replaced with GFP_ATOMIC.
This bug is found by my static analysis tool and my code review.
Signed-off-by: Jia-Ju Bai <baijiaju1990@163.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| drivers/staging/rtl8188eu/core/rtw_cmd.c | diffblobblamehistory |