tty: add missing rcu_read_lock for task_pgrp

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task_pgrp requires an rcu or tasklist lock to be obtained if the returned pid
is to be dereferenced, which kill_pgrp does. Obtain an RCU lock for the
duration of use.

Signed-off-by: Patrick Donnelly <batrick@batbytes.com>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Patrick Donnelly 2015-07-12 18:51:52 -04:00 • committed by Greg Kroah-Hartman

parent da891641b6

commit 6719693ca2

2 changed files with 24 additions and 8 deletions

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15

drivers/tty/n_tty.c

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17

drivers/tty/tty_io.c

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