netdev - [PATCH net 096/117] b43legacy: set B43legacy_DEBUGFS_FOPS.owner to THIS

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu,  8 Oct 2020 15:51:48 +0000
From:   Taehee Yoo <ap420073@...il.com>
To:     davem@...emloft.net, kuba@...nel.org, netdev@...r.kernel.org
Cc:     ap420073@...il.com, linux-wireless@...r.kernel.org,
        wil6210@....qualcomm.com, b43-dev@...ts.infradead.org,
        linux-bluetooth@...r.kernel.org
Subject: [PATCH net 096/117] b43legacy: set B43legacy_DEBUGFS_FOPS.owner to THIS_MODULE

If THIS_MODULE is not set, the module would be removed while debugfs is
being used.
It eventually makes kernel panic.

Fixes: 75388acd0cd8 ("[B43LEGACY]: add mac80211-based driver for legacy BCM43xx devices")
Signed-off-by: Taehee Yoo <ap420073@...il.com>
---
 drivers/net/wireless/broadcom/b43legacy/debugfs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/broadcom/b43legacy/debugfs.c b/drivers/net/wireless/broadcom/b43legacy/debugfs.c
index e7e4293c01f2..7c6e7cfeb822 100644
--- a/drivers/net/wireless/broadcom/b43legacy/debugfs.c
+++ b/drivers/net/wireless/broadcom/b43legacy/debugfs.c
@@ -318,6 +318,7 @@ static ssize_t b43legacy_debugfs_write(struct file *file,
 			.read	= b43legacy_debugfs_read,		\
 			.write	= b43legacy_debugfs_write,		\
 			.llseek = generic_file_llseek,			\
+			.owner = THIS_MODULE,				\
 		},						\
 		.file_struct_offset = offsetof(struct b43legacy_dfsentry, \
 					       file_##name),	\
-- 
2.17.1