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| author | Christian Marangi <ansuelsmth@gmail.com> | 2026-10-22 21:38:51 +0200 |
|---|---|---|
| committer | Andi Shyti <andi.shyti@kernel.org> | 2026-10-23 18:27:28 +0200 |
| commit | b7fd977fec0d3f2bdd4f13bb59949c817a365652 (patch) | |
| tree | dd1600abb902df015412afec302675640f89015f /tools/lib/python | |
| parent | 73dae605cad7921800677d982bfaeb81cc930dec (diff) | |
i2c: mt7621: fix copying uninitialized kernel stack with reduced page_len
When a page_len is less than 5 bytes in mtk_i2c_xfer, uninitialized kernel
stack data is copied and written to REG_SM0D1_REG. Equally on the read
part, an unnecessary read is done.
Guard these extra copy/write and read for the page_len to fix leaking
uninitialized stack memory.
Fixes: d04913ec5f89 ("i2c: mt7621: Add MediaTek MT7621/7628/7688 I2C driver")
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Cc: <stable@vger.kernel.org> # v5.3+
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://patch.msgid.link/20261022193853.670625-1-ansuelsmth@gmail.com
Diffstat (limited to 'tools/lib/python')
0 files changed, 0 insertions, 0 deletions