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| author | Xiaoming Ni <nixiaoming@huawei.com> | 2020-11-26 13:35:10 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2020-11-26 17:35:58 -0300 |
| commit | 106ff08526d3ca574ba86d891450ea55aa929712 (patch) | |
| tree | bdf0f8a9fee37a63ce497ccdce712711023f7a61 /io/Makefile | |
| parent | db07fae8250401adb2b97ab3e53d41da2a6bd767 (diff) | |
| download | glibc-106ff08526d3ca574ba86d891450ea55aa929712.tar.gz glibc-106ff08526d3ca574ba86d891450ea55aa929712.tar.xz glibc-106ff08526d3ca574ba86d891450ea55aa929712.zip | |
io: nftw/ftw: Fix stack overflow with large nopenfd [BZ #26353]
The nopenfd value is used as argument for the internal buffer on ftw_statup, which is allocated with alloca and might trigger a stack overflow for large values. This patch replaces the memory allocation to use malloc instead. Checked on x86_64-linux-gnu. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'io/Makefile')
| -rw-r--r-- | io/Makefile | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/io/Makefile b/io/Makefile index 6dd2c33fcf..33f5b0b867 100644 --- a/io/Makefile +++ b/io/Makefile @@ -68,7 +68,8 @@ tests := test-utime test-stat test-stat2 test-lfs tst-getcwd \ tst-posix_fallocate tst-posix_fallocate64 \ tst-fts tst-fts-lfs tst-open-tmpfile \ tst-copy_file_range tst-getcwd-abspath tst-lockf \ - tst-ftw-lnk tst-file_change_detection tst-lchmod + tst-ftw-lnk tst-file_change_detection tst-lchmod \ + tst-ftw-bz26353 # Likewise for statx, but we do not need static linking here. tests-internal += tst-statx |