Package: coreutils
Version: 8.32-4+b1
Severity: normal

Dear Maintainer,

stty ispeed and ospeed don't seem to check that the speed is valid:
-- >8 --
$ LD_PRELOAD=$PWD/dumpispeed.so stty ispeed 420
cfsetispeed(0xPOINTER, 4294967295)=-1

$ LD_PRELOAD=$PWD/dumpispeed.so stty ispeed 57600
cfsetispeed(0xPOINTER, 4097)=0
-- >8 --

Compare bare speeds:
-- >8 --
$ stty 420
stty: invalid argument 420
Try 'stty --help' for more information.

$ stty 57600
-- >8 --

Best,
наб

-- System Information:
Debian Release: 11.4
  APT prefers stable-updates
  APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 
'stable-debug'), (500, 'stable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.10.0-16-amd64 (SMP w/24 CPU threads)
Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_FIRMWARE_WORKAROUND, 
TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), 
LANGUAGE=en_GB:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled

Versions of packages coreutils depends on:
ii  libacl1      2.2.53-10
ii  libattr1     1:2.4.48-6
ii  libc6        2.31-13+deb11u3
ii  libgmp10     2:6.2.1+dfsg-1+deb11u1
ii  libselinux1  3.1-3

coreutils recommends no packages.

coreutils suggests no packages.

-- no debconf information

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