Closed
Description
Description
Redirected there by oerdnj/deb.sury.org#1703
When mods-available INI file, e.g. /etc/php/8.1/mods-available/opcache.ini, has no sufficient permission to read by user, PHP CLI ends by segmentation fault.
php8.1[5509]: segfault at 0 ip 00007f4a768c97e4 sp 00007ffdae393780 error 4 in libc-2.28.so[7f4a7687c000+148000]
I've removed INI file permission by mistake and had no glue what happend to CLI scripts.
Steps to reproduce the behavior:
# Probably not needed, this is default after installation
chown root:root /etc/php/8.1/mods-available/opcache.ini
# Remove read permission for others
chmod 640 /etc/php/8.1/mods-available/opcache.ini
# Run php as non-root user
su username -c php8.1
Segmentation fault
Expected behavior
Not segafult. Probably, extension should not be loaded, or emit warning.
Distribution
Linux alfa-01 4.19.0-18-amd64 #1 SMP Debian 4.19.208-1 (2021-09-29) x86_64 GNU/Linux- OS: Debian 10.11
- Architecture: amd64
- Repository:
deb https://packages.sury.org/php/ buster main
Last lines of strace:
stat("/etc/php/8.1/cli/conf.d/10-opcache.ini", {st_mode=S_IFREG|0640, st_size=79, ...}) = 0
openat(AT_FDCWD, "/etc/php/8.1/cli/conf.d/10-opcache.ini", O_RDONLY) = -1 EACCES (Permission denied)
--- SIGSEGV {si_signo=SIGSEGV, si_code=SEGV_MAPERR, si_addr=NULL} ---
+++ killed by SIGSEGV +++
PHP Version
PHP 8.1.1
Operating System
Debian 10.11