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[v1,5/9] sysctl: Fixes nsm_local_state bounds

Message ID 20250127142014.37834-6-nicolas.bouchinet@clip-os.org
State New
Headers show
Series Fixes multiple sysctl bound checks | expand

Commit Message

Nicolas Bouchinet Jan. 27, 2025, 2:20 p.m. UTC 
From: Nicolas Bouchinet <nicolas.bouchinet@ssi.gouv.fr>

Bound nsm_local_state sysctl writings between SYSCTL_ZERO
and SYSCTL_INT_MAX.

The proc_handler has thus been updated to proc_dointvec_minmax.

Signed-off-by: Nicolas Bouchinet <nicolas.bouchinet@ssi.gouv.fr>
---
 fs/lockd/svc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
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Patch

diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 4ec22c2f2ea3c..84752d27d0072 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -468,7 +468,9 @@  static struct ctl_table nlm_sysctls[] = {
 		.data		= &nsm_local_state,
 		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= proc_dointvec,
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1		= SYSCTL_ZERO,
+		.extra2		= SYSCTL_INT_MAX,
 	},
 };