redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

mips: cdmm: fix use-after-free in mips_cdmm_bus_discover 

kfree(dev) has been called inside put_device so anther
kfree would cause a use-after-free bug/

Fixes: 8286ae0330 ("MIPS: Add CDMM bus support")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com>
Acked-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
zero-sugar-mainline-defconfig
Qinglang Miao 2020-11-20 15:48:47 +08:00 committed by Thomas Bogendoerfer
parent a307a4ce9e
commit f0e82242b1
1 changed files with 1 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/bus/mips_cdmm.c
View File

@ -559,10 +559,8 @@ static void mips_cdmm_bus_discover(struct mips_cdmm_bus *bus)
dev_set_name(&dev->dev, "cdmm%u-%u", cpu, id);
++id;
ret = device_register(&dev->dev);
if (ret) {
if (ret)
put_device(&dev->dev);
kfree(dev);
}
}
}