]> git.ipfire.org Git - thirdparty/kernel/stable.git/commitdiff
clk: tegra: do not overallocate memory for bpmp clocks
authorFedor Pchelkin <pchelkin@ispras.ru>
Sat, 26 Apr 2025 12:54:28 +0000 (15:54 +0300)
committerStephen Boyd <sboyd@kernel.org>
Sun, 21 Sep 2025 20:09:12 +0000 (13:09 -0700)
struct tegra_bpmp::clocks is a pointer to a dynamically allocated array
of pointers to 'struct tegra_bpmp_clk'.

But the size of the allocated area is calculated like it is an array
containing actual 'struct tegra_bpmp_clk' objects - it's not true, there
are just pointers.

Found by Linux Verification Center (linuxtesting.org) with Svace static
analysis tool.

Fixes: 2db12b15c6f3 ("clk: tegra: Register clocks from root to leaf")
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
drivers/clk/tegra/clk-bpmp.c

index b2323cb8eddcce53696e158d0195fa5e29593630..77a2586dbe000e98cad2b3c2d53bd6a482b86f0c 100644 (file)
@@ -635,7 +635,7 @@ static int tegra_bpmp_register_clocks(struct tegra_bpmp *bpmp,
 
        bpmp->num_clocks = count;
 
-       bpmp->clocks = devm_kcalloc(bpmp->dev, count, sizeof(struct tegra_bpmp_clk), GFP_KERNEL);
+       bpmp->clocks = devm_kcalloc(bpmp->dev, count, sizeof(*bpmp->clocks), GFP_KERNEL);
        if (!bpmp->clocks)
                return -ENOMEM;