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soc: qcom: rmtfs-mem: Make sysfs attributes world-readable

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In order to run an rmtfs daemon as an unprivileged user, that user would
need access to the phys_addr and size sysfs attributes. Sharing these
attributes with unprivileged users doesn't really leak anything
sensitive, since if you have access to physical memory, the jig is
up anyway.

Make those attributes readable by all.

Reviewed-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Andy Gross <andy.gross@linaro.org>
This commit is contained in:
Evan Green
2019-01-02 16:02:13 -08:00
committed by Andy Gross
parent b4aa93bca9
commit f58b0f9d9d
1 changed files with 3 additions and 3 deletions
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6
drivers/soc/qcom/rmtfs_mem.c
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@@ -45,9 +45,9 @@ static ssize_t qcom_rmtfs_mem_show(struct device *dev,
struct device_attribute *attr,
char *buf);
static DEVICE_ATTR(phys_addr, 0400, qcom_rmtfs_mem_show, NULL);
static DEVICE_ATTR(size, 0400, qcom_rmtfs_mem_show, NULL);
static DEVICE_ATTR(client_id, 0400, qcom_rmtfs_mem_show, NULL);
static DEVICE_ATTR(phys_addr, 0444, qcom_rmtfs_mem_show, NULL);
static DEVICE_ATTR(size, 0444, qcom_rmtfs_mem_show, NULL);
static DEVICE_ATTR(client_id, 0444, qcom_rmtfs_mem_show, NULL);
static ssize_t qcom_rmtfs_mem_show(struct device *dev,
struct device_attribute *attr,