mirror of
https://github.com/team-infusion-developers/android_kernel_samsung_msm8976.git
synced 2024-11-01 02:21:16 +00:00
85ec36aada
commit 6b8d9117ccb4f81b1244aafa7bc70ef8fa45fc49 upstream. The timeout entries are sizeof(int) rather than sizeof(long), which means that when they were getting read we'd also leak kernel memory to userspace along with the timeout values. Signed-off-by: Sasha Levin <sasha.levin@oracle.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
78 lines
1.8 KiB
C
78 lines
1.8 KiB
C
/*
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* sysctl_net_llc.c: sysctl interface to LLC net subsystem.
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*
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* Arnaldo Carvalho de Melo <acme@conectiva.com.br>
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*/
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#include <linux/mm.h>
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#include <linux/init.h>
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#include <linux/sysctl.h>
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#include <net/net_namespace.h>
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#include <net/llc.h>
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#ifndef CONFIG_SYSCTL
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#error This file should not be compiled without CONFIG_SYSCTL defined
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#endif
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static struct ctl_table llc2_timeout_table[] = {
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{
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.procname = "ack",
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.data = &sysctl_llc2_ack_timeout,
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.maxlen = sizeof(sysctl_llc2_ack_timeout),
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.mode = 0644,
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.proc_handler = proc_dointvec_jiffies,
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},
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{
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.procname = "busy",
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.data = &sysctl_llc2_busy_timeout,
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.maxlen = sizeof(sysctl_llc2_busy_timeout),
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.mode = 0644,
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.proc_handler = proc_dointvec_jiffies,
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},
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{
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.procname = "p",
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.data = &sysctl_llc2_p_timeout,
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.maxlen = sizeof(sysctl_llc2_p_timeout),
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.mode = 0644,
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.proc_handler = proc_dointvec_jiffies,
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},
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{
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.procname = "rej",
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.data = &sysctl_llc2_rej_timeout,
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.maxlen = sizeof(sysctl_llc2_rej_timeout),
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.mode = 0644,
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.proc_handler = proc_dointvec_jiffies,
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},
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{ },
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};
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static struct ctl_table llc_station_table[] = {
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{ },
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};
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static struct ctl_table_header *llc2_timeout_header;
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static struct ctl_table_header *llc_station_header;
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int __init llc_sysctl_init(void)
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{
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llc2_timeout_header = register_net_sysctl(&init_net, "net/llc/llc2/timeout", llc2_timeout_table);
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llc_station_header = register_net_sysctl(&init_net, "net/llc/station", llc_station_table);
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if (!llc2_timeout_header || !llc_station_header) {
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llc_sysctl_exit();
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return -ENOMEM;
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}
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return 0;
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}
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void llc_sysctl_exit(void)
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{
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if (llc2_timeout_header) {
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unregister_net_sysctl_table(llc2_timeout_header);
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llc2_timeout_header = NULL;
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}
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if (llc_station_header) {
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unregister_net_sysctl_table(llc_station_header);
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llc_station_header = NULL;
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}
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}
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