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| author | Zhongqiu Han <quic_zhonhan@quicinc.com> | 2025-02-19 20:27:15 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-05-02 07:39:09 +0200 |
| commit | 34a9394794b0f97af6afedc0c9ee2012c24b28ed (patch) | |
| tree | 1bfaa8964d1fe4809a49537d42a8161801ee553e /tools | |
| parent | 529401c8f12ecc35f9ea5d946d5a5596cf172b48 (diff) | |
| download | linux-34a9394794b0f97af6afedc0c9ee2012c24b28ed.tar.gz linux-34a9394794b0f97af6afedc0c9ee2012c24b28ed.tar.bz2 linux-34a9394794b0f97af6afedc0c9ee2012c24b28ed.zip | |
pm: cpupower: bench: Prevent NULL dereference on malloc failure
[ Upstream commit 208baa3ec9043a664d9acfb8174b332e6b17fb69 ]
If malloc returns NULL due to low memory, 'config' pointer can be NULL.
Add a check to prevent NULL dereference.
Link: https://lore.kernel.org/r/20250219122715.3892223-1-quic_zhonhan@quicinc.com
Signed-off-by: Zhongqiu Han <quic_zhonhan@quicinc.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/power/cpupower/bench/parse.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/power/cpupower/bench/parse.c b/tools/power/cpupower/bench/parse.c index e63dc11fa3a5..48e25be6e163 100644 --- a/tools/power/cpupower/bench/parse.c +++ b/tools/power/cpupower/bench/parse.c @@ -120,6 +120,10 @@ out_dir: struct config *prepare_default_config() { struct config *config = malloc(sizeof(struct config)); + if (!config) { + perror("malloc"); + return NULL; + } dprintf("loading defaults\n"); |