Benjamin Berg e0fe0da961 um: Don't use vfprintf() for os_info() ...

[ Upstream commit 236f9fe39b02c15fa5530b53e9cca48354394389 ]

The threads allocated inside the kernel have only a single page of
stack. Unfortunately, the vfprintf function in standard glibc may use
too much stack-space, overflowing it.

To make os_info safe to be used by helper threads, use the kernel
vscnprintf function into a smallish buffer and write out the information
to stderr.

Signed-off-by: Benjamin Berg <benjamin@sipsolutions.net>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2024-02-23 08:12:50 +01:00

..

drivers

…

skas

…

aio.c

…

elf_aux.c

…

execvp.c

…

file.c

…

helper.c

um: Fix naming clash between UML and scheduler

2024-02-23 08:12:50 +01:00

irq.c

…

main.c

…

Makefile

…

mem.c

…

process.c

…

registers.c

…

sigio.c

…

signal.c

…

start_up.c

…

time.c

…

tty.c

…

umid.c

…

user_syms.c

…

util.c

um: Don't use vfprintf() for os_info()

2024-02-23 08:12:50 +01:00