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(parent: d704ffa) | patch
i2c: dev: fix potential memory leak in i2cdev_ioctl_rdwr
authorYingjoe Chen <yingjoe.chen@mediatek.com>
Tue, 7 May 2019 14:20:32 +0000 (22:20 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 22 Jun 2019 06:16:17 +0000 (08:16 +0200)
commit8bf2a24467b461019731eca336868f553e638e6b
tree433bf61a6054e5c75637ec14482a3a9a8ab866detree | snapshot (tar.gz zip)
parentd704ffa628f32e677334630e0de9b0081bda3c7ecommit | diff
i2c: dev: fix potential memory leak in i2cdev_ioctl_rdwr

[ Upstream commit a0692f0eef91354b62c2b4c94954536536be5425 ]

If I2C_M_RECV_LEN check failed, msgs[i].buf allocated by memdup_user
will not be freed. Pump index up so it will be freed.

Fixes: 838bfa6049fb ("i2c-dev: Add support for I2C_M_RECV_LEN")
Signed-off-by: Yingjoe Chen <yingjoe.chen@mediatek.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/i2c/i2c-dev.c diff | blob | blame | history