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| author | Kuan-Wei Chiu <visitorckw@gmail.com> | 2024-09-28 14:36:08 +0300 |
|---|---|---|
| committer | Petr Mladek <pmladek@suse.com> | 2024-12-12 12:10:03 +0300 |
| commit | 3d6f83df8ff2d5de84b50377e4f0d45e25311c7a (patch) | |
| tree | e64f31472ec3d6346a44e471aa7f2def8c4328e2 /tools/perf/scripts/python/task-analyzer.py | |
| parent | 7d66d3ab139c8c195dbb603e21043b6e2d120fa3 (diff) | |
| download | linux-3d6f83df8ff2d5de84b50377e4f0d45e25311c7a.tar.xz | |
printk: Fix signed integer overflow when defining LOG_BUF_LEN_MAX
Shifting 1 << 31 on a 32-bit int causes signed integer overflow, which
leads to undefined behavior. To prevent this, cast 1 to u32 before
performing the shift, ensuring well-defined behavior.
This change explicitly avoids any potential overflow by ensuring that
the shift occurs on an unsigned 32-bit integer.
Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com>
Acked-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20240928113608.1438087-1-visitorckw@gmail.com
Signed-off-by: Petr Mladek <pmladek@suse.com>
Diffstat (limited to 'tools/perf/scripts/python/task-analyzer.py')
0 files changed, 0 insertions, 0 deletions