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NFSv4.2: another fix for listxattr

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Currently, when the server supports NFS4.1 security labels then
security.selinux label in included twice. Instead, only add it
when the server doesn't possess security label support.

Fixes: 243fea1346 ("NFSv4.2: fix listxattr to return selinux security label")
Signed-off-by: Olga Kornievskaia <okorniev@redhat.com>
Link: https://lore.kernel.org/r/20250722205641.79394-1-okorniev@redhat.com
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Olga Kornievskaia 2025-07-22 16:56:41 -04:00 committed by Trond Myklebust
parent ef93a685e0
commit 9acb237def
1 changed files with 6 additions and 4 deletions
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10
fs/nfs/nfs4proc.c
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@ -10883,7 +10883,7 @@ const struct nfs4_minor_version_ops *nfs_v4_minor_ops[] = {
static ssize_t nfs4_listxattr(struct dentry *dentry, char *list, size_t size)
{
ssize_t error, error2, error3, error4;
ssize_t error, error2, error3, error4 = 0;
size_t left = size;
error = generic_listxattr(dentry, list, left);
@ -10911,9 +10911,11 @@ static ssize_t nfs4_listxattr(struct dentry *dentry, char *list, size_t size)
left -= error3;
}
error4 = security_inode_listsecurity(d_inode(dentry), list, left);
if (error4 < 0)
return error4;
if (!nfs_server_capable(d_inode(dentry), NFS_CAP_SECURITY_LABEL)) {
error4 = security_inode_listsecurity(d_inode(dentry), list, left);
if (error4 < 0)
return error4;
}
error += error2 + error3 + error4;
if (size && error > size)