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| author | Siddhesh Poyarekar <siddhesh@redhat.com> | 2013-01-02 11:33:11 +0530 |
|---|---|---|
| committer | Siddhesh Poyarekar <siddhesh@redhat.com> | 2013-01-02 11:33:11 +0530 |
| commit | 4d55b4e596d63705b86200d15d905b2549dd25df (patch) | |
| tree | 83db5fc21391432d05946d31ca96b29634586392 /ChangeLog | |
| parent | da08f647d58d674db08cdb3e61c8826c89470e2e (diff) | |
| download | glibc-4d55b4e596d63705b86200d15d905b2549dd25df.tar.gz glibc-4d55b4e596d63705b86200d15d905b2549dd25df.tar.xz glibc-4d55b4e596d63705b86200d15d905b2549dd25df.zip | |
Add assert for potential access beyond array bounds in m1np
The mpexp code has an access into m1np:
for (i=n-1; i>0; i--,n--) { if (m1np[i][p]+m2>0) break; }
which could break for p >= 18 or i >= 7. Fortunately this code is
never called due to the way the exp function is implemented since
values having exponent less than -55 return 1.0. Make sure that if it
gets called in future, it is trapped.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index fe304e41a9..d0c10b5ff2 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,5 +1,8 @@ 2013-01-02 Siddhesh Poyarekar <siddhesh@redhat.com> + * sysdeps/ieee754/dbl-64/mpexp.c (__mpexp): Add assert to + check access beyond bounds of m1np. + * sysdeps/ieee754/dbl-64/mpa.c [! NO__CONST]: New constant MPTWO. (__inv): Remove local variable MPTWO to use the global |