You have been subscribed to a public bug:
The following ubuntu xenial version segfaults any program trying to read
its own vsyscall memory segment. The affected ubuntu version:
Vagrant box: ubuntu/xenial64 (v20180112.0.0)
Kernel: 4.4.0-109-generic
Executing the following program segfaults:
// gcc -g -O0 <file>
int main() {
// You use gdb to pause the program and
// check through /proc/<pid>/maps that this
// memory addrs is mapped to [vsyscall]
return *(int*)(0xffffffffff600000);
}
The following two versions work fine:
Vagrant box: ubuntu/bionic64 (v20180115.1.0)
Kernel: 4.13.0-25-generic
Vagrant box: ubuntu/xenial64 (v20171028.0.0)
Kernel: 4.4.0-97-generic
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
--
Ubuntu 16.04.3 LTS with kerne 4.4.0-109-generic, segfaults vsyscalls
https://bugs.launchpad.net/bugs/1744122
You received this bug notification because you are a member of Kernel Packages,
which is subscribed to linux in Ubuntu.
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : [email protected]
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
