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authorMasahiro Yamada <masahiroy@kernel.org>2023-11-15 13:16:53 +0900
committerMasahiro Yamada <masahiroy@kernel.org>2023-11-17 13:24:08 +0900
commitae1eff0349f2e908fc083630e8441ea6dc434dc0 (patch)
treeeaecd0aa59fa4c44633232c88b59f408804653cb /Makefile
parent76020731d4ee897411ce4a73916ed805ea15d946 (diff)
kconfig: fix memory leak from range properties
Currently, sym_validate_range() duplicates the range string using xstrdup(), which is overwritten by a subsequent sym_calc_value() call. It results in a memory leak. Instead, only the pointer should be copied. Below is a test case, with a summary from Valgrind. [Test Kconfig] config FOO int "foo" range 10 20 [Test .config] CONFIG_FOO=0 [Before] LEAK SUMMARY: definitely lost: 3 bytes in 1 blocks indirectly lost: 0 bytes in 0 blocks possibly lost: 0 bytes in 0 blocks still reachable: 17,465 bytes in 21 blocks suppressed: 0 bytes in 0 blocks [After] LEAK SUMMARY: definitely lost: 0 bytes in 0 blocks indirectly lost: 0 bytes in 0 blocks possibly lost: 0 bytes in 0 blocks still reachable: 17,462 bytes in 20 blocks suppressed: 0 bytes in 0 blocks Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Diffstat (limited to 'Makefile')
0 files changed, 0 insertions, 0 deletions