read builtin goes into uninterruptible loop if input only contains zeros

[Siteshwar Vashisht]

Configuration Information [Automatically generated, do not change]:
Machine: x86_64
OS: linux-gnu
Compiler: gcc
Compilation CFLAGS:  -DPROGRAM='bash' -DCONF_HOSTTYPE='x86_64' 
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='x86_64-unknown-linux-gnu' 
-DCONF_VENDOR='unknown' -DLOCALEDIR='/usr/local/share/locale' -DPACKAGE='bash' 
-DSHELL -DHAVE_CONFIG_H   -I.  -I. -I./include -I./lib   -g -O0 
-Wno-parentheses -Wno-format-security
uname output: Linux localhost.localdomain 4.11.6-201.fc25.x86_64 #1 SMP Tue Jun 
20 20:21:11 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
Machine Type: x86_64-unknown-linux-gnu

Bash Version: 4.4
Patch Level: 12
Release Status: release

Description:
        read builtin goes into uninterruptible loop if input comes from 
/dev/zero.

Repeat-By:
        read -N 1 _ < /dev/zero

Fix:
        Attached patch fixes the bug.


-- 
--
Siteshwar Vashisht

0001-Make-read-builtin-interruptible-if-input-contains-ze.patch
Description: Text Data