Commit a9febbb4 authored by Eric Dumazet's avatar Eric Dumazet Committed by Linus Torvalds

sysctl: min/max bounds are optional

sysctl check complains with a WARN() when proc_doulongvec_minmax() or
proc_doulongvec_ms_jiffies_minmax() are used by a vector of longs (with
more than one element), with no min or max value specified.

This is unexpected, given we had a bug on this min/max handling :)
Reported-by: default avatarJiri Slaby <jirislaby@gmail.com>
Signed-off-by: default avatarEric Dumazet <eric.dumazet@gmail.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: David Miller <davem@davemloft.net>
Acked-by: default avatarWANG Cong <xiyou.wangcong@gmail.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 5a2b3ef4
...@@ -143,15 +143,6 @@ int sysctl_check_table(struct nsproxy *namespaces, struct ctl_table *table) ...@@ -143,15 +143,6 @@ int sysctl_check_table(struct nsproxy *namespaces, struct ctl_table *table)
if (!table->maxlen) if (!table->maxlen)
set_fail(&fail, table, "No maxlen"); set_fail(&fail, table, "No maxlen");
} }
if ((table->proc_handler == proc_doulongvec_minmax) ||
(table->proc_handler == proc_doulongvec_ms_jiffies_minmax)) {
if (table->maxlen > sizeof (unsigned long)) {
if (!table->extra1)
set_fail(&fail, table, "No min");
if (!table->extra2)
set_fail(&fail, table, "No max");
}
}
#ifdef CONFIG_PROC_SYSCTL #ifdef CONFIG_PROC_SYSCTL
if (table->procname && !table->proc_handler) if (table->procname && !table->proc_handler)
set_fail(&fail, table, "No proc_handler"); set_fail(&fail, table, "No proc_handler");
......
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