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| author |   Abdun Nihaal <abdun.nihaal@gmail.com> | 2025-06-26 22:58:21 +0530 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2025-06-29 22:10:36 +0100 |
| commit | c871c199accb39d0f4cb941ad0dccabfc21e9214 (patch) | |
| tree | c81cb4806ce7b783be87b467df6d6c8435edb9fb /tools/perf/scripts/python/Perf-Trace-Util/lib | |
| parent | Linux 6.16-rc4 (diff) | |
| download | wireguard-linux-c871c199accb39d0f4cb941ad0dccabfc21e9214.tar.xz wireguard-linux-c871c199accb39d0f4cb941ad0dccabfc21e9214.zip | |
regmap: fix potential memory leak of regmap_bus
When __regmap_init() is called from __regmap_init_i2c() and
__regmap_init_spi() (and their devm versions), the bus argument
obtained from regmap_get_i2c_bus() and regmap_get_spi_bus(), may be
allocated using kmemdup() to support quirks. In those cases, the
bus->free_on_exit field is set to true.
However, inside __regmap_init(), buf is not freed on any error path.
This could lead to a memory leak of regmap_bus when __regmap_init()
fails. Fix that by freeing bus on error path when free_on_exit is set.
Fixes: ea030ca68819 ("regmap-i2c: Set regmap max raw r/w from quirks")
Signed-off-by: Abdun Nihaal <abdun.nihaal@gmail.com>
Link: https://patch.msgid.link/20250626172823.18725-1-abdun.nihaal@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib')
0 files changed, 0 insertions, 0 deletions