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sysctl: always initialize i_uid/i_gid

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[ Upstream commit 98ca62ba9e2be5863c7d069f84f7166b45a5b2f4 ]

Always initialize i_uid/i_gid inside the sysfs core so set_ownership()
can safely skip setting them.

Commit 5ec27ec735ba ("fs/proc/proc_sysctl.c: fix the default values of
i_uid/i_gid on /proc/sys inodes.") added defaults for i_uid/i_gid when
set_ownership() was not implemented. It also missed adjusting
net_ctl_set_ownership() to use the same default values in case the
computation of a better value failed.

Fixes: 5ec27ec735ba ("fs/proc/proc_sysctl.c: fix the default values of i_uid/i_gid on /proc/sys inodes.")
Cc: stable@vger.kernel.org
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Joel Granados <j.granados@samsung.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Thomas Weißschuh 2024-04-02 23:10:34 +02:00 committed by Ksawlii
parent 5cf79899db
commit 0d42f39bfb
1 changed files with 2 additions and 4 deletions
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6
fs/proc/proc_sysctl.c
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@ -473,12 +473,10 @@ static struct inode *proc_sys_make_inode(struct super_block *sb,
make_empty_dir_inode(inode);
}
inode->i_uid = GLOBAL_ROOT_UID;
inode->i_gid = GLOBAL_ROOT_GID;
if (root->set_ownership)
root->set_ownership(head, table, &inode->i_uid, &inode->i_gid);
else {
inode->i_uid = GLOBAL_ROOT_UID;
inode->i_gid = GLOBAL_ROOT_GID;
}
return inode;
}