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| author | Dan Carpenter <dan.carpenter@linaro.org> | 2024-11-04 20:16:42 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-11-05 15:55:19 +0300 |
| commit | 7dd08a0b4193087976db6b3ee7807de7e8316f96 (patch) | |
| tree | 151b54a3b2b977ceae394ff7f024aabb42b41650 /tools/perf/scripts/python/syscall-counts-by-pid.py | |
| parent | 9cfb31e4c89d200d8ab7cb1e0bb9e6e8d621ca0b (diff) | |
| download | linux-7dd08a0b4193087976db6b3ee7807de7e8316f96.tar.xz | |
usb: typec: fix potential out of bounds in ucsi_ccg_update_set_new_cam_cmd()
The "*cmd" variable can be controlled by the user via debugfs. That means
"new_cam" can be as high as 255 while the size of the uc->updated[] array
is UCSI_MAX_ALTMODES (30).
The call tree is:
ucsi_cmd() // val comes from simple_attr_write_xsigned()
-> ucsi_send_command()
-> ucsi_send_command_common()
-> ucsi_run_command() // calls ucsi->ops->sync_control()
-> ucsi_ccg_sync_control()
Fixes: 170a6726d0e2 ("usb: typec: ucsi: add support for separate DP altmode devices")
Cc: stable <stable@kernel.org>
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Link: https://lore.kernel.org/r/325102b3-eaa8-4918-a947-22aca1146586@stanley.mountain
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/syscall-counts-by-pid.py')
0 files changed, 0 insertions, 0 deletions