Bug 1020 – Does not find its pty in qemu-user-static

Bug 1020 - Does not find its pty in qemu-user-static


Summary:	Does not find its pty in qemu-user-static

Status:	RESOLVED FIXED

Product:	Sudo
Classification:	Unclassified
Component:	Sudo
Version:	1.9.8
Hardware:	PC Linux

Importance:	low normal
Assigned To:	Todd C. Miller

URL:	https://bugs.debian.org/cgi-bin/bugre...

Depends on:
Blocks:
	Show dependency tree / graph

Reported:	2022-02-02 04:34 MST by Marc Haber
Modified:	2022-03-04 09:15 MST (History)
CC List:	0 users

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Description Marc Haber 2022-02-02 04:34:00 MST

Hi,

in qemu-user-static, /proc/self/stat contains a lot of zeroes. Sudo tries to read its tty from that file and fails if run in qemu-user-static.

The URL contains instructions how to reproduce this.

The reporter suggests to fall back to reading /proc/self/fd/0 if /proc/self/stat fails.

Greetings
Marc

Comment 1 Todd C. Miller 2022-02-02 11:26:14 MST

I've added fallback code in https://www.sudo.ws/repos/sudo/rev/c32620c9f115 which should work around the qemu problem.

Comment 2 Todd C. Miller 2022-03-04 09:15:31 MST

Fixed in sudo 1.9.10