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| author |   ZhengShunQian <zhengsq@rock-chips.com> | 2015-09-30 13:33:56 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-10-04 12:09:43 +0100 |
| commit | 7c806883e143dc60439e6bdb3589700ebed1efaa (patch) | |
| tree | 1c0b21a959e88862b3179c2515975ed8e6319f5c /drivers/nvmem/core.c | |
| parent | Linux 4.3-rc3 (diff) | |
| download | linux-dev-7c806883e143dc60439e6bdb3589700ebed1efaa.tar.xz linux-dev-7c806883e143dc60439e6bdb3589700ebed1efaa.zip | |
nvmem: core: fix the out-of-range leak in read/write()
The position to read/write must be less than max
register size.
Signed-off-by: ZhengShunQian <zhengsq@rock-chips.com>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/nvmem/core.c')
| -rw-r--r-- | drivers/nvmem/core.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c index d3c6676b3c0c..f4af8e5fcd94 100644 --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -67,7 +67,7 @@ static ssize_t bin_attr_nvmem_read(struct file *filp, struct kobject *kobj, int rc; /* Stop the user from reading */ - if (pos > nvmem->size) + if (pos >= nvmem->size) return 0; if (pos + count > nvmem->size) @@ -92,7 +92,7 @@ static ssize_t bin_attr_nvmem_write(struct file *filp, struct kobject *kobj, int rc; /* Stop the user from writing */ - if (pos > nvmem->size) + if (pos >= nvmem->size) return 0; if (pos + count > nvmem->size) |