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| author |  Dan Carpenter <dan.carpenter@linaro.org>
| 2024-04-12 11:25:37 +0300 |
|---|---|---|
| committer |  Alexandre Torgue <alexandre.torgue@foss.st.com>
| 2024-04-25 14:44:39 +0200 |
| commit | e4500d7525f9223a0a46431caa6d0f2d165f05ce (patch) | |
| tree | 990a5c02c8b4953a30703740ca809afa22802cea /drivers/bus | |
| parent | bus: etzpc: introduce ETZPC firewall controller driver (diff) | |
| download | linux-e4500d7525f9223a0a46431caa6d0f2d165f05ce.tar.gz linux-e4500d7525f9223a0a46431caa6d0f2d165f05ce.tar.bz2 linux-e4500d7525f9223a0a46431caa6d0f2d165f05ce.zip | |
bus: stm32_firewall: fix off by one in stm32_firewall_get_firewall()
The "nb_firewall" variable is the number of elements in the firewall[]
array, which is allocated in stm32_firewall_populate_bus(). So change
this > comparison to >= to prevent an out of bound access.
Fixes: 5c9668cfc6d7 ("firewall: introduce stm32_firewall framework")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Gatien Chevallier <gatien.chevallier@foss.st.com>
Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
Diffstat (limited to 'drivers/bus')
| -rw-r--r-- | drivers/bus/stm32_firewall.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/bus/stm32_firewall.c b/drivers/bus/stm32_firewall.c index decb79449047..2fc9761dadec 100644 --- a/drivers/bus/stm32_firewall.c +++ b/drivers/bus/stm32_firewall.c @@ -53,7 +53,7 @@ int stm32_firewall_get_firewall(struct device_node *np, struct stm32_firewall *f return err; } - if (j > nb_firewall) { + if (j >= nb_firewall) { pr_err("Too many firewall controllers"); of_node_put(provider); return -EINVAL; |