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| author | Wentao Liang <vulab@iscas.ac.cn> | 2026-09-17 15:55:23 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2026-09-23 12:21:40 +0200 |
| commit | ef3134cd0d4831ae2137aee2883987859b80b2c6 (patch) | |
| tree | 28328388acd14cbfa072a581c14320d51486cf32 /tools/lib/python | |
| parent | 98401cf912fe8a081ef8e500c421b6d957b55a99 (diff) | |
| download | linux-next-ef3134cd0d4831ae2137aee2883987859b80b2c6.tar.gz linux-next-ef3134cd0d4831ae2137aee2883987859b80b2c6.zip | |
kgdboc: Fix tty driver reference leak in configure_kgdboc()
tty_find_polling_driver() returns the tty driver with an extra
reference taken by tty_driver_kref_get(). configure_kgdboc() stores it
in kgdb_tty_driver but the reference is never dropped: it is leaked when
kgdb_register_io_module() fails, when the configuration is cleared, and
on every reconfigure.
Release the reference both when unconfiguring and on the error path.
Fixes: 7d7b93c1452f ("tty: kref the tty driver object")
Cc: stable@kernel.org
Signed-off-by: Wentao Liang <vulab@iscas.ac.cn>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Link: https://patch.msgid.link/20260917155523.2161202-1-vulab@iscas.ac.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/lib/python')
0 files changed, 0 insertions, 0 deletions