* [RESEND PATCH] nfs: Annotate struct pnfs_commit_array with __counted_by()
@ 2024-10-28 11:13 Thorsten Blum
0 siblings, 0 replies; 3+ messages in thread
From: Thorsten Blum @ 2024-10-28 11:13 UTC (permalink / raw)
To: Trond Myklebust, Anna Schumaker, Kees Cook, Gustavo A. R. Silva
Cc: Thorsten Blum, linux-nfs, linux-kernel, linux-hardening
Add the __counted_by compiler attribute to the flexible array member
buckets to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and
CONFIG_FORTIFY_SOURCE.
Compile-tested only.
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
include/linux/nfs_xdr.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index e0ae0a14257f..e74a87bb18a4 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1331,7 +1331,7 @@ struct pnfs_commit_array {
struct rcu_head rcu;
refcount_t refcount;
unsigned int nbuckets;
- struct pnfs_commit_bucket buckets[];
+ struct pnfs_commit_bucket buckets[] __counted_by(nbuckets);
};
struct pnfs_ds_commit_info {
--
2.47.0
^ permalink raw reply related [flat|nested] 3+ messages in thread* [RESEND PATCH] nfs: Annotate struct pnfs_commit_array with __counted_by()
@ 2024-11-07 10:48 Thorsten Blum
0 siblings, 0 replies; 3+ messages in thread
From: Thorsten Blum @ 2024-11-07 10:48 UTC (permalink / raw)
To: Trond Myklebust, Anna Schumaker, Kees Cook, Gustavo A. R. Silva
Cc: Thorsten Blum, linux-nfs, linux-kernel, linux-hardening
Add the __counted_by compiler attribute to the flexible array member
buckets to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and
CONFIG_FORTIFY_SOURCE.
Compile-tested only.
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
include/linux/nfs_xdr.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 12d8e47bc5a3..559273a0f16d 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1336,7 +1336,7 @@ struct pnfs_commit_array {
struct rcu_head rcu;
refcount_t refcount;
unsigned int nbuckets;
- struct pnfs_commit_bucket buckets[];
+ struct pnfs_commit_bucket buckets[] __counted_by(nbuckets);
};
struct pnfs_ds_commit_info {
--
2.47.0
^ permalink raw reply related [flat|nested] 3+ messages in thread* [RESEND PATCH] nfs: Annotate struct pnfs_commit_array with __counted_by()
@ 2024-10-15 20:27 Thorsten Blum
0 siblings, 0 replies; 3+ messages in thread
From: Thorsten Blum @ 2024-10-15 20:27 UTC (permalink / raw)
To: Trond Myklebust, Anna Schumaker, Kees Cook, Gustavo A. R. Silva
Cc: Thorsten Blum, linux-nfs, linux-kernel, linux-hardening
Add the __counted_by compiler attribute to the flexible array member
buckets to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and
CONFIG_FORTIFY_SOURCE.
Compile-tested only.
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
---
include/linux/nfs_xdr.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 12d8e47bc5a3..559273a0f16d 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1336,7 +1336,7 @@ struct pnfs_commit_array {
struct rcu_head rcu;
refcount_t refcount;
unsigned int nbuckets;
- struct pnfs_commit_bucket buckets[];
+ struct pnfs_commit_bucket buckets[] __counted_by(nbuckets);
};
struct pnfs_ds_commit_info {
--
2.47.0
^ permalink raw reply related [flat|nested] 3+ messages in thread
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