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| author |   Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com> | 2022-06-08 05:26:09 -0700 |
|---|---|---|
| committer |   Jiri Kosina <jkosina@suse.cz> | 2022-06-09 10:55:46 +0200 |
| commit | 381583845d19cb4bd21c8193449385f3fefa9caf (patch) | |
| tree | 5811e31e13ed7e4d8b8339009fbf5ca05e56ffdd /scripts/generate_rust_analyzer.py | |
| parent | HID: hid-input: add Surface Go battery quirk (diff) | |
| download | wireguard-linux-381583845d19cb4bd21c8193449385f3fefa9caf.tar.xz wireguard-linux-381583845d19cb4bd21c8193449385f3fefa9caf.zip | |
HID: cp2112: prevent a buffer overflow in cp2112_xfer()
Smatch warnings:
drivers/hid/hid-cp2112.c:793 cp2112_xfer() error: __memcpy()
'data->block[1]' too small (33 vs 255)
drivers/hid/hid-cp2112.c:793 cp2112_xfer() error: __memcpy() 'buf' too
small (64 vs 255)
The 'read_length' variable is provided by 'data->block[0]' which comes
from user and it(read_length) can take a value between 0-255. Add an
upper bound to 'read_length' variable to prevent a buffer overflow in
memcpy().
Fixes: 542134c0375b ("HID: cp2112: Fix I2C_BLOCK_DATA transactions")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'scripts/generate_rust_analyzer.py')
0 files changed, 0 insertions, 0 deletions