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| author | Siddhesh Poyarekar <siddhesh@sourceware.org> | 2017-03-07 20:52:04 +0530 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2017-07-13 11:36:20 -0300 |
| commit | ceeb0740ed04c48170f9f6f15fef55637ad84e1b (patch) | |
| tree | 2adf4d58544aa760f7fe33a82dd1c3c6c32a0db8 /linuxthreads/Examples/ex5.c | |
| parent | 24adabbe17d24b9cf4f42d81f546359f72515ce3 (diff) | |
| download | glibc-linaro/2.23/master.tar.gz glibc-linaro/2.23/master.tar.xz glibc-linaro/2.23/master.zip | |
Ignore and remove LD_HWCAP_MASK for AT_SECURE programs (bug #21209) linaro/2.23/master
The LD_HWCAP_MASK environment variable may alter the selection of function variants for some architectures. For AT_SECURE process it means that if an outdated routine has a bug that would otherwise not affect newer platforms by default, LD_HWCAP_MASK will allow that bug to be exploited. To be on the safe side, ignore and disable LD_HWCAP_MASK for setuid binaries. [BZ #21209] * elf/rtld.c (process_envvars): Ignore LD_HWCAP_MASK for AT_SECURE processes. * sysdeps/generic/unsecvars.h: Add LD_HWCAP_MASK. (cherry picked from commit 1c1243b6fc33c029488add276e56570a07803bfd)
Diffstat (limited to 'linuxthreads/Examples/ex5.c')
0 files changed, 0 insertions, 0 deletions