Public bug reported:
While running valgrind on gparted I noticed a buffer overflow reported
in getmntent(). I wrote a simple reproducer and verified it is a bug in
libc. valgrind shows that it touches 1 byte before the start of the
buffer it allocated.
Attaching the reproducer and a copy of my /etc/fstab that it is running
on when it does this. When run on /proc/mounts, the bug does not occur.
** Affects: glibc (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "demo.c"
https://bugs.launchpad.net/bugs/1525578/+attachment/4533843/+files/demo.c
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https://bugs.launchpad.net/bugs/1525578
Title:
buffer overflow in getmntent
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