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linux/fs/smb
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Zilin Guan bb82aaee16 cifs: Fix memory and information leak in smb3_reconfigure() 
[ Upstream commit cb6d5aa9c0 ]

In smb3_reconfigure(), if smb3_sync_session_ctx_passwords() fails, the
function returns immediately without freeing and erasing the newly
allocated new_password and new_password2. This causes both a memory leak
and a potential information leak.

Fix this by calling kfree_sensitive() on both password buffers before
returning in this error case.

Fixes: 0f0e357902 ("cifs: during remount, make sure passwords are in sync")
Signed-off-by: Zilin Guan <zilin@seu.edu.cn>
Reviewed-by: ChenXiaoSong <chenxiaosong@kylinos.cn>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2026-01-02 12:57:04 +01:00
..
client cifs: Fix memory and information leak in smb3_reconfigure() 2026-01-02 12:57:04 +01:00
common smb: smbdirect: introduce SMBDIRECT_CHECK_STATUS_{WARN,DISCONNECT}() 2025-12-18 14:03:28 +01:00
server ksmbd: fix buffer validation by including null terminator size in EA length 2026-01-02 12:56:55 +01:00
Kconfig smb: move client and server files to common directory fs/smb 2023-05-24 16:29:21 -05:00
Makefile smb: move client and server files to common directory fs/smb 2023-05-24 16:29:21 -05:00