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| author | Mark Langsdorf <mlangsdo@redhat.com> | 2021-04-27 13:54:33 -0500 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-04-28 19:17:54 +0200 |
| commit | 1cfd8956437f842836e8a066b40d1ec2fc01f13e (patch) | |
| tree | e843fc6d6d26bd778bbe7529ffc0c3e115628f39 /lib/sbitmap.c | |
| parent | e483bb9a991bdae29a0caa4b3a6d002c968f94aa (diff) | |
| download | linux-stable-1cfd8956437f842836e8a066b40d1ec2fc01f13e.tar.gz linux-stable-1cfd8956437f842836e8a066b40d1ec2fc01f13e.tar.bz2 linux-stable-1cfd8956437f842836e8a066b40d1ec2fc01f13e.zip | |
ACPI: custom_method: fix a possible memory leak
In cm_write(), if the 'buf' is allocated memory but not fully consumed,
it is possible to reallocate the buffer without freeing it by passing
'*ppos' as 0 on a subsequent call.
Add an explicit kfree() before kzalloc() to prevent the possible memory
leak.
Fixes: 526b4af47f44 ("ACPI: Split out custom_method functionality into an own driver")
Signed-off-by: Mark Langsdorf <mlangsdo@redhat.com>
Cc: 5.4+ <stable@vger.kernel.org> # 5.4+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'lib/sbitmap.c')
0 files changed, 0 insertions, 0 deletions