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tty: ldsic: fix tty_ldisc_autoload sysctl's proc_handler

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commit 635a9fca54f4f4148be1ae1c7c6bd37af80f5773 upstream.

Commit 7c0cca7c84 ("tty: ldisc: add sysctl to prevent autoloading of
ldiscs") introduces the tty_ldisc_autoload sysctl with the wrong
proc_handler. .extra1 and .extra2 parameters are set to avoid other values
thant SYSCTL_ZERO or SYSCTL_ONE to be set but proc_dointvec do not uses
them.

This commit fixes this by using proc_dointvec_minmax instead of
proc_dointvec.

Fixes: 7c0cca7c84 ("tty: ldisc: add sysctl to prevent autoloading of ldiscs")
Cc: stable <[email protected]>
Signed-off-by: Nicolas Bouchinet <[email protected]>
Reviewed-by: Lin Feng <[email protected]>
Reviewed-by: Jiri Slaby <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Nicolas Bouchinet 2024-11-12 14:13:31 +01:00 • committed by Greg Kroah-Hartman
commit 1ebbcaf0d5
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/tty_ldisc.c
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@ -861,7 +861,7 @@ static struct ctl_table tty_table[] = {
.data = &tty_ldisc_autoload,
.maxlen = sizeof(tty_ldisc_autoload),
.mode = 0644,
.proc_handler = proc_dointvec,
.proc_handler = proc_dointvec_minmax,
.extra1 = SYSCTL_ZERO,
.extra2 = SYSCTL_ONE,
},