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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)
committerWolfram Sang <wsa@the-dreams.de>
Mon, 27 May 2019 19:24:43 +0000 (21:24 +0200)
commita0692f0eef91354b62c2b4c94954536536be5425
tree56697e162d2a49c4b8a1f7d91837dece08408141tree | snapshot
parentcd6c84d8f0cdc911df435bb075ba22ce3c605b07commit | diff
i2c: dev: fix potential memory leak in i2cdev_ioctl_rdwr

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>
drivers/i2c/i2c-dev.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git